mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-05 10:04:12 +08:00
42e15d1207
1536 Commits
Author | SHA1 | Message | Date | |
---|---|---|---|---|
Linus Torvalds
|
443b349019 |
samples/cgroup: add .gitignore file for generated samples
Make 'git status' quietly happy again after a full allmodconfig build.
Fixes:
|
||
Linus Torvalds
|
e5075d8ec5 |
RISC-V Patches for the 6.8 Merge Window, Part 4
This includes everything from part 2: * Support for tuning for systems with fast misaligned accesses. * Support for SBI-based suspend. * Support for the new SBI debug console extension. * The T-Head CMOs now use PA-based flushes. * Support for enabling the V extension in kernel code. * Optimized IP checksum routines. * Various ftrace improvements. * Support for archrandom, which depends on the Zkr extension. and then also a fix for those: * The build is no longer broken under NET=n, KUNIT=y for ports that don't define their own ipv6 checksum. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmWsCOMTHHBhbG1lckBk YWJiZWx0LmNvbQAKCRAuExnzX7sYieQND/0f+1gizTM0OzuqZG9+DOdWTtqmILyr sZaYXWBw6SPzbUSlwjoW4Qp/S3Ur7IhrbfttM2aMoS4GHZvSESAXOMXC4c7AnCaQ HOXBC2OuXvq6jA0ZjK5XPviR70A/7uD2iu5SNO1hyfJK08LSEu+AulxtkW50+wMc bHXSpZxEf8AtwOJK1cRtwhH4qy+Qcs3Nla3jG7OnDsPbhJVcydHx95eCtfwn2cQA KwJPN1fjRtm4ALZb91QcMDO8VAoanfPEkSR3DoNVE/UfdTItYk35VHmf4RWh7IWA qDnV5Mp/XMX2RmJqwi1ZmSHHX0rfVLL5UqgBhGHC8PuMpLJn5p9U6DZ0qD7YWxcB NDlrHsaXt112RHEEM/7CcLkqEexua/ezcC45E5tSQ4sRDZE3fvgbALao67xSQ22D lCpVAY0Z3o5oWaM/jISiQHjSNn5RrAwEYSvvv2pkW4QAMShA2eggmQaCF+Jl4EMp u6yqJpXxDI99C088uvM6Bi2gcX8fnBSmOzCB/sSU4a1I72UpWrGngqUpTYKHG8Jz cTZhbIKmQirBP0vC/UgMOS0sNuw/NykItfRXZ2g0qGKvw1TjJ6djdeZBKcAj3h0E fJpMxuhmeOFYE7DavnhSt3CResFTXZzXLChjxGbT+g10YzVEf9g7vBVnjxAwad9f tryMVpL/ipGpQQ== =Sjhj -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-6.8-mw4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull more RISC-V updates from Palmer Dabbelt: - Support for tuning for systems with fast misaligned accesses. - Support for SBI-based suspend. - Support for the new SBI debug console extension. - The T-Head CMOs now use PA-based flushes. - Support for enabling the V extension in kernel code. - Optimized IP checksum routines. - Various ftrace improvements. - Support for archrandom, which depends on the Zkr extension. - The build is no longer broken under NET=n, KUNIT=y for ports that don't define their own ipv6 checksum. * tag 'riscv-for-linus-6.8-mw4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (56 commits) lib: checksum: Fix build with CONFIG_NET=n riscv: lib: Check if output in asm goto supported riscv: Fix build error on rv32 + XIP riscv: optimize ELF relocation function in riscv RISC-V: Implement archrandom when Zkr is available riscv: Optimize hweight API with Zbb extension riscv: add dependency among Image(.gz), loader(.bin), and vmlinuz.efi samples: ftrace: Add RISC-V support for SAMPLE_FTRACE_DIRECT[_MULTI] riscv: ftrace: Add DYNAMIC_FTRACE_WITH_DIRECT_CALLS support riscv: ftrace: Make function graph use ftrace directly riscv: select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY lib/Kconfig.debug: Update AS_HAS_NON_CONST_LEB128 comment and name riscv: Restrict DWARF5 when building with LLVM to known working versions riscv: Hoist linker relaxation disabling logic into Kconfig kunit: Add tests for csum_ipv6_magic and ip_fast_csum riscv: Add checksum library riscv: Add checksum header riscv: Add static key for misaligned accesses asm-generic: Improve csum_fold RISC-V: selftests: cbo: Ensure asm operands match constraints ... |
||
Linus Torvalds
|
a2ded784cd |
tracing updates for 6.8:
- Allow kernel trace instance creation to specify what events are created Inside the kernel, a subsystem may create a tracing instance that it can use to send events to user space. This sub-system may not care about the thousands of events that exist in eventfs. Allow the sub-system to specify what sub-systems of events it cares about, and only those events are exposed to this instance. - Allow the ring buffer to be broken up into bigger sub-buffers than just the architecture page size. A new tracefs file called "buffer_subbuf_size_kb" is created. The user can now specify a minimum size the sub-buffer may be in kilobytes. Note, that the implementation currently make the sub-buffer size a power of 2 pages (1, 2, 4, 8, 16, ...) but the user only writes in kilobyte size, and the sub-buffer will be updated to the next size that it will can accommodate it. If the user writes in 10, it will change the size to be 4 pages on x86 (16K), as that is the next available size that can hold 10K pages. - Update the debug output when a corrupt time is detected in the ring buffer. If the ring buffer detects inconsistent timestamps, there's a debug config options that will dump the contents of the meta data of the sub-buffer that is used for debugging. Add some more information to this dump that helps with debugging. - Add more timestamp debugging checks (only triggers when the config is enabled) - Increase the trace_seq iterator to 2 page sizes. - Allow strings written into tracefs_marker to be larger. Up to just under 2 page sizes (based on what trace_seq can hold). - Increase the trace_maker_raw write to be as big as a sub-buffer can hold. - Remove 32 bit time stamp logic, now that the rb_time_cmpxchg() has been removed. - More selftests were added. - Some code clean ups as well. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCZZ8p3BQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6ql2GAQDZg/zlFEiJHyTfWbCIE8pA3T5xbzKo 26TNxIZAxJJZpQEAvGFU5Smy14pG6soEoVMp8B6ZOANbqU8VVamhOL+r+Qw= =0OYG -----END PGP SIGNATURE----- Merge tag 'trace-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing updates from Steven Rostedt: - Allow kernel trace instance creation to specify what events are created Inside the kernel, a subsystem may create a tracing instance that it can use to send events to user space. This sub-system may not care about the thousands of events that exist in eventfs. Allow the sub-system to specify what sub-systems of events it cares about, and only those events are exposed to this instance. - Allow the ring buffer to be broken up into bigger sub-buffers than just the architecture page size. A new tracefs file called "buffer_subbuf_size_kb" is created. The user can now specify a minimum size the sub-buffer may be in kilobytes. Note, that the implementation currently make the sub-buffer size a power of 2 pages (1, 2, 4, 8, 16, ...) but the user only writes in kilobyte size, and the sub-buffer will be updated to the next size that it will can accommodate it. If the user writes in 10, it will change the size to be 4 pages on x86 (16K), as that is the next available size that can hold 10K pages. - Update the debug output when a corrupt time is detected in the ring buffer. If the ring buffer detects inconsistent timestamps, there's a debug config options that will dump the contents of the meta data of the sub-buffer that is used for debugging. Add some more information to this dump that helps with debugging. - Add more timestamp debugging checks (only triggers when the config is enabled) - Increase the trace_seq iterator to 2 page sizes. - Allow strings written into tracefs_marker to be larger. Up to just under 2 page sizes (based on what trace_seq can hold). - Increase the trace_maker_raw write to be as big as a sub-buffer can hold. - Remove 32 bit time stamp logic, now that the rb_time_cmpxchg() has been removed. - More selftests were added. - Some code clean ups as well. * tag 'trace-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (29 commits) ring-buffer: Remove stale comment from ring_buffer_size() tracing histograms: Simplify parse_actions() function tracing/selftests: Remove exec permissions from trace_marker.tc test ring-buffer: Use subbuf_order for buffer page masking tracing: Update subbuffer with kilobytes not page order ringbuffer/selftest: Add basic selftest to test changing subbuf order ring-buffer: Add documentation on the buffer_subbuf_order file ring-buffer: Just update the subbuffers when changing their allocation order ring-buffer: Keep the same size when updating the order tracing: Stop the tracing while changing the ring buffer subbuf size tracing: Update snapshot order along with main buffer order ring-buffer: Make sure the spare sub buffer used for reads has same size ring-buffer: Do no swap cpu buffers if order is different ring-buffer: Clear pages on error in ring_buffer_subbuf_order_set() failure ring-buffer: Read and write to ring buffers with custom sub buffer size ring-buffer: Set new size of the ring buffer sub page ring-buffer: Add interface for configuring trace sub buffer size ring-buffer: Page size per ring buffer ring-buffer: Have ring_buffer_print_page_header() be able to access ring_buffer_iter ring-buffer: Check if absolute timestamp goes backwards ... |
||
Song Shuai
|
629291dd84
|
samples: ftrace: Add RISC-V support for SAMPLE_FTRACE_DIRECT[_MULTI]
Add RISC-V variants of the ftrace-direct* samples. Tested-by: Evgenii Shatokhin <e.shatokhin@yadro.com> Signed-off-by: Song Shuai <suagrfillet@gmail.com> Tested-by: Guo Ren <guoren@kernel.org> Signed-off-by: Guo Ren <guoren@kernel.org> Acked-by: Björn Töpel <bjorn@rivosinc.com> Link: https://lore.kernel.org/r/20231130121531.1178502-5-bjorn@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com> |
||
Linus Torvalds
|
61da593f44 |
media updates for v6.8-rc1
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE+QmuaPwR3wnBdVwACF8+vY7k4RUFAmWhMN0ACgkQCF8+vY7k 4RUNmw/9FNwS6woEDPUgoaqBqES5N1R/QzqqWgALQSiywUSWsAnHuALR7Aio4oH4 IMRrXn3nQpg1wj+f2OtVcXreuf1OMdD0WmQvcj/hcjGIx3mZUh2dBXJpR/iRrCRA jbGUDZqsiT9gPf6IcqspFccoShVjQDM7NKLa6xQMpwyITBAXhY0d5LPOs70VJO3f EH6wdJbhbQoocylSFCOl61un4Ebk/Zou2TDyzAAnIMQxmanVTWnRE9QL6G59t8PA XgTcSRiyQGdNScR8c/xgyHDj4KchvkwFHQfOAH+HPot6CIy+UsC02ofcBralTuN6 HTiJ8upj9U/N2ArX7L9w4xOFaRlXSO4MBTbQsroCgl7vkSfjMx/Ik5gHNVSoP25y MdLVg9ReW6D22tWnHvqpwbv4YPjT1uFX9LzuNtINwjJVC5Hn7EMPiE7hdsBGdKZE 98dVJKNMUHQT5KfEUqjDkdrcAYm5Pd46trEa1aMDnoxtshxlmwHYwUj0QNKVX2gT Wa5lw9twFvmvYPGFwIT11HrkFukj4zR7N7Eh0IOK93zjJl6gtr1UNmujj8KFXJS3 ZB4yTlcSgFunsmkyfcZ+02bgM9fq7SC1/rL9bXBYxdo2EcuduJ93Gr5riaQtVu44 6t6Gi8Ucf9Uh7B68Alf0GQAd+AhXPzbqtisHdYJb0ijGjRMhq7w= =KPPn -----END PGP SIGNATURE----- Merge tag 'media/v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - v4l core: subdev frame interval now supports which field - v4l kapi: moves and renames the init_cfg pad op to init_state as an internal op. - new sensor drivers: gc0308, gc2145, Avnet Alvium, ov64a40, tw9900 - new camera driver: STM32 DCMIPP - s5p-mfc has gained MFC v12 support - new ISP driver added to staging: Starfive - new stateful encoder/decoded: Wave5 codec It is found on the J721S2 SoC, JH7100 SoC, ssd202d SoC. Etc. - fwnode gained support for MIPI "DisCo for Imaging" (https://www.mipi.org/specifications/mipi-disco-imaging) - as usual, lots of cleanups, fixups and driver improvements. * tag 'media/v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (309 commits) media: i2c: thp7312: select CONFIG_FW_LOADER media: i2c: mt9m114: use fsleep() in place of udelay() media: videobuf2: core: Rename min_buffers_needed field in vb2_queue media: i2c: thp7312: Store frame interval in subdev state media: docs: uAPI: Fix documentation of 'which' field for routing ioctls media: docs: uAPI: Expand error documentation for invalid 'which' value media: docs: uAPI: Clarify error documentation for invalid 'which' value media: v4l2-subdev: Store frame interval in subdev state media: v4l2-subdev: Add which field to struct v4l2_subdev_frame_interval media: v4l2-subdev: Turn .[gs]_frame_interval into pad operations media: v4l: subdev: Move out subdev state lock macros outside CONFIG_MEDIA_CONTROLLER media: s5p-mfc: DPB Count Independent of VIDIOC_REQBUF media: s5p-mfc: Load firmware for each run in MFCv12. media: s5p-mfc: Set context for valid case before calling try_run media: s5p-mfc: Add support for DMABUF for encoder media: s5p-mfc: Add support for UHD encoding. media: s5p-mfc: Add support for rate controls in MFCv12 media: s5p-mfc: Add YV12 and I420 multiplanar format support media: s5p-mfc: Add initial support for MFCv12 media: s5p-mfc: Rename IS_MFCV10 macro ... |
||
Linus Torvalds
|
3e7aeb78ab |
Networking changes for 6.8.
Core & protocols ---------------- - Analyze and reorganize core networking structs (socks, netdev, netns, mibs) to optimize cacheline consumption and set up build time warnings to safeguard against future header changes. This improves TCP performances with many concurrent connections up to 40%. - Add page-pool netlink-based introspection, exposing the memory usage and recycling stats. This helps indentify bad PP users and possible leaks. - Refine TCP/DCCP source port selection to no longer favor even source port at connect() time when IP_LOCAL_PORT_RANGE is set. This lowers the time taken by connect() for hosts having many active connections to the same destination. - Refactor the TCP bind conflict code, shrinking related socket structs. - Refactor TCP SYN-Cookie handling, as a preparation step to allow arbitrary SYN-Cookie processing via eBPF. - Tune optmem_max for 0-copy usage, increasing the default value to 128KB and namespecifying it. - Allow coalescing for cloned skbs coming from page pools, improving RX performances with some common configurations. - Reduce extension header parsing overhead at GRO time. - Add bridge MDB bulk deletion support, allowing user-space to request the deletion of matching entries. - Reorder nftables struct members, to keep data accessed by the datapath first. - Introduce TC block ports tracking and use. This allows supporting multicast-like behavior at the TC layer. - Remove UAPI support for retired TC qdiscs (dsmark, CBQ and ATM) and classifiers (RSVP and tcindex). - More data-race annotations. - Extend the diag interface to dump TCP bound-only sockets. - Conditional notification of events for TC qdisc class and actions. - Support for WPAN dynamic associations with nearby devices, to form a sub-network using a specific PAN ID. - Implement SMCv2.1 virtual ISM device support. - Add support for Batman-avd mulicast packet type. BPF --- - Tons of verifier improvements: - BPF register bounds logic and range support along with a large test suite - log improvements - complete precision tracking support for register spills - track aligned STACK_ZERO cases as imprecise spilled registers. It improves the verifier "instructions processed" metric from single digit to 50-60% for some programs - support for user's global BPF subprogram arguments with few commonly requested annotations for a better developer experience - support tracking of BPF_JNE which helps cases when the compiler transforms (unsigned) "a > 0" into "if a == 0 goto xxx" and the like - several fixes - 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. - Fix kCFI bugs in BPF all forms of indirect calls from BPF into kernel and from kernel into BPF work with CFI enabled. This allows BPF to work with CONFIG_FINEIBT=y. - 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. - Support uid/gid options when mounting bpffs. - Add a new kfunc which acquires the associated cgroup of a task within a specific cgroup v1 hierarchy where the latter is identified by its id. - Extend verifier to allow bpf_refcount_acquire() of a map value field obtained via direct load which is a use-case needed in sched_ext. - Add BPF link_info support for uprobe multi link along with bpftool integration for the latter. - Support for VLAN tag in XDP hints. - Remove deprecated bpfilter kernel leftovers given the project is developed in user-space (https://github.com/facebook/bpfilter). Misc ---- - Support for parellel TC self-tests execution. - Increase MPTCP self-tests coverage. - Updated the bridge documentation, including several so-far undocumented features. - Convert all the net self-tests to run in unique netns, to avoid random failures due to conflict and allow concurrent runs. - Add TCP-AO self-tests. - Add kunit tests for both cfg80211 and mac80211. - Autogenerate Netlink families documentation from YAML spec. - Add yml-gen support for fixed headers and recursive nests, the tool can now generate user-space code for all genetlink families for which we have specs. - A bunch of additional module descriptions fixes. - Catch incorrect freeing of pages belonging to a page pool. Driver API ---------- - Rust abstractions for network PHY drivers; do not cover yet the full C API, but already allow implementing functional PHY drivers in rust. - Introduce queue and NAPI support in the netdev Netlink interface, allowing complete access to the device <> NAPIs <> queues relationship. - Introduce notifications filtering for devlink to allow control application scale to thousands of instances. - Improve PHY validation, requesting rate matching information for each ethtool link mode supported by both the PHY and host. - Add support for ethtool symmetric-xor RSS hash. - ACPI based Wifi band RFI (WBRF) mitigation feature for the AMD platform. - Expose pin fractional frequency offset value over new DPLL generic netlink attribute. - Convert older drivers to platform remove callback returning void. - Add support for PHY package MMD read/write. New hardware / drivers ---------------------- - Ethernet: - Octeon CN10K devices - Broadcom 5760X P7 - Qualcomm SM8550 SoC - Texas Instrument DP83TG720S PHY - Bluetooth: - IMC Networks Bluetooth radio Removed ------- - WiFi: - libertas 16-bit PCMCIA support - Atmel at76c50x drivers - HostAP ISA/PCMCIA style 802.11b driver - zd1201 802.11b USB dongles - Orinoco ISA/PCMCIA 802.11b driver - Aviator/Raytheon driver - Planet WL3501 driver - RNDIS USB 802.11b driver Drivers ------- - Ethernet high-speed NICs: - Intel (100G, ice, idpf): - allow one by one port representors creation and removal - add temperature and clock information reporting - add get/set for ethtool's header split ringparam - add again FW logging - adds support switchdev hardware packet mirroring - iavf: implement symmetric-xor RSS hash - igc: add support for concurrent physical and free-running timers - i40e: increase the allowable descriptors - nVidia/Mellanox: - Preparation for Socket-Direct multi-dev netdev. That will allow in future releases combining multiple PFs devices attached to different NUMA nodes under the same netdev - Broadcom (bnxt): - TX completion handling improvements - add basic ntuple filter support - reduce MSIX vectors usage for MQPRIO offload - add VXLAN support, USO offload and TX coalesce completion for P7 - Marvell Octeon EP: - xmit-more support - add PF-VF mailbox support and use it for FW notifications for VFs - Wangxun (ngbe/txgbe): - implement ethtool functions to operate pause param, ring param, coalesce channel number and msglevel - Netronome/Corigine (nfp): - add flow-steering support - support UDP segmentation offload - Ethernet NICs embedded, slower, virtual: - Xilinx AXI: remove duplicate DMA code adopting the dma engine driver - stmmac: add support for HW-accelerated VLAN stripping - TI AM654x sw: add mqprio, frame preemption & coalescing - gve: add support for non-4k page sizes. - virtio-net: support dynamic coalescing moderation - nVidia/Mellanox Ethernet datacenter switches: - allow firmware upgrade without a reboot - more flexible support for bridge flooding via the compressed FID flooding mode - Ethernet embedded switches: - Microchip: - fine-tune flow control and speed configurations in KSZ8xxx - KSZ88X3: enable setting rmii reference - Renesas: - add jumbo frames support - Marvell: - 88E6xxx: add "eth-mac" and "rmon" stats support - Ethernet PHYs: - aquantia: add firmware load support - at803x: refactor the driver to simplify adding support for more chip variants - NXP C45 TJA11xx: Add MACsec offload support - Wifi: - MediaTek (mt76): - NVMEM EEPROM improvements - mt7996 Extremely High Throughput (EHT) improvements - mt7996 Wireless Ethernet Dispatcher (WED) support - mt7996 36-bit DMA support - Qualcomm (ath12k): - support for a single MSI vector - WCN7850: support AP mode - Intel (iwlwifi): - new debugfs file fw_dbg_clear - allow concurrent P2P operation on DFS channels - Bluetooth: - QCA2066: support HFP offload - ISO: more broadcast-related improvements - NXP: better recovery in case receiver/transmitter get out of sync Signed-off-by: Paolo Abeni <pabeni@redhat.com> -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEEg1AjqC77wbdLX2LbKSR5jcyPE6QFAmWdamsSHHBhYmVuaUBy ZWRoYXQuY29tAAoJECkkeY3MjxOkGC4P/2xjLzdw22ckSssuE9ORbGko9SNjnqHk PQh1E+26BHiCg5KB8VvzMsL78E79MRNXEattSW+1g7dhCvln3oi+Vd0WkdRkgt35 98Iv18zLbbwFAJeyKvmLAPAkQkMLtVj19QILBBRrugF+egEZgVSE3JBcTAiKv2ZQ HzkabA171Ri6LpCcEEtY5XuaKvimGnGzF8YMFf8rX0wtqd2p5kbY9aMe47WAGxvU Vf9548XvH+A5yVH2/4/gujtUOpA/RHuhuCMb+oo0cZ+VCC1x9MGzoXzj6r87OTkf k2W1whNzcGoin92f+9Lk1JYMuiGKBH4QVaDdNXJnYFSJWPTE7RvRsPzYTSD4/GzK yEZbzSJXpy/2vDQm16NoAxl7evRs8Sorzkw4LQRviZHI/5SAkK2ZQiCK5CO8QSYy C1LELcV5kn6Foe24xWnrWLjAGug9oJnYoGPMU5gvPmFJMvUMXqm5rmbBgUWL5Rxw q1M6gVzabCyWUy6z2G2vaqW2ZntNVvCkdsLtIX0XZkcTzNoP0MA+TuhyGz4wbiuo PeyQp/mbGnDgCYggqKIA0YWrTVxkhFrKN520cbO8qXBQytV9oFbM/0/+C0/r/5WX pL1JVzLrh6l5ME7EIQfha8UOF9j8q4ueSwb40P3AR2NaZiDABM0zfUZ6+sx+91WF ucqPEcZB5cRE =1bW6 -----END PGP SIGNATURE----- Merge tag 'net-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Paolo Abeni: "The most interesting thing is probably the networking structs reorganization and a significant amount of changes is around self-tests. Core & protocols: - Analyze and reorganize core networking structs (socks, netdev, netns, mibs) to optimize cacheline consumption and set up build time warnings to safeguard against future header changes This improves TCP performances with many concurrent connections up to 40% - Add page-pool netlink-based introspection, exposing the memory usage and recycling stats. This helps indentify bad PP users and possible leaks - Refine TCP/DCCP source port selection to no longer favor even source port at connect() time when IP_LOCAL_PORT_RANGE is set. This lowers the time taken by connect() for hosts having many active connections to the same destination - Refactor the TCP bind conflict code, shrinking related socket structs - Refactor TCP SYN-Cookie handling, as a preparation step to allow arbitrary SYN-Cookie processing via eBPF - Tune optmem_max for 0-copy usage, increasing the default value to 128KB and namespecifying it - Allow coalescing for cloned skbs coming from page pools, improving RX performances with some common configurations - Reduce extension header parsing overhead at GRO time - Add bridge MDB bulk deletion support, allowing user-space to request the deletion of matching entries - Reorder nftables struct members, to keep data accessed by the datapath first - Introduce TC block ports tracking and use. This allows supporting multicast-like behavior at the TC layer - Remove UAPI support for retired TC qdiscs (dsmark, CBQ and ATM) and classifiers (RSVP and tcindex) - More data-race annotations - Extend the diag interface to dump TCP bound-only sockets - Conditional notification of events for TC qdisc class and actions - Support for WPAN dynamic associations with nearby devices, to form a sub-network using a specific PAN ID - Implement SMCv2.1 virtual ISM device support - Add support for Batman-avd mulicast packet type BPF: - Tons of verifier improvements: - BPF register bounds logic and range support along with a large test suite - log improvements - complete precision tracking support for register spills - track aligned STACK_ZERO cases as imprecise spilled registers. This improves the verifier "instructions processed" metric from single digit to 50-60% for some programs - support for user's global BPF subprogram arguments with few commonly requested annotations for a better developer experience - support tracking of BPF_JNE which helps cases when the compiler transforms (unsigned) "a > 0" into "if a == 0 goto xxx" and the like - several fixes - 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 - Fix kCFI bugs in BPF all forms of indirect calls from BPF into kernel and from kernel into BPF work with CFI enabled. This allows BPF to work with CONFIG_FINEIBT=y - 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 - Support uid/gid options when mounting bpffs - Add a new kfunc which acquires the associated cgroup of a task within a specific cgroup v1 hierarchy where the latter is identified by its id - Extend verifier to allow bpf_refcount_acquire() of a map value field obtained via direct load which is a use-case needed in sched_ext - Add BPF link_info support for uprobe multi link along with bpftool integration for the latter - Support for VLAN tag in XDP hints - Remove deprecated bpfilter kernel leftovers given the project is developed in user-space (https://github.com/facebook/bpfilter) Misc: - Support for parellel TC self-tests execution - Increase MPTCP self-tests coverage - Updated the bridge documentation, including several so-far undocumented features - Convert all the net self-tests to run in unique netns, to avoid random failures due to conflict and allow concurrent runs - Add TCP-AO self-tests - Add kunit tests for both cfg80211 and mac80211 - Autogenerate Netlink families documentation from YAML spec - Add yml-gen support for fixed headers and recursive nests, the tool can now generate user-space code for all genetlink families for which we have specs - A bunch of additional module descriptions fixes - Catch incorrect freeing of pages belonging to a page pool Driver API: - Rust abstractions for network PHY drivers; do not cover yet the full C API, but already allow implementing functional PHY drivers in rust - Introduce queue and NAPI support in the netdev Netlink interface, allowing complete access to the device <> NAPIs <> queues relationship - Introduce notifications filtering for devlink to allow control application scale to thousands of instances - Improve PHY validation, requesting rate matching information for each ethtool link mode supported by both the PHY and host - Add support for ethtool symmetric-xor RSS hash - ACPI based Wifi band RFI (WBRF) mitigation feature for the AMD platform - Expose pin fractional frequency offset value over new DPLL generic netlink attribute - Convert older drivers to platform remove callback returning void - Add support for PHY package MMD read/write New hardware / drivers: - Ethernet: - Octeon CN10K devices - Broadcom 5760X P7 - Qualcomm SM8550 SoC - Texas Instrument DP83TG720S PHY - Bluetooth: - IMC Networks Bluetooth radio Removed: - WiFi: - libertas 16-bit PCMCIA support - Atmel at76c50x drivers - HostAP ISA/PCMCIA style 802.11b driver - zd1201 802.11b USB dongles - Orinoco ISA/PCMCIA 802.11b driver - Aviator/Raytheon driver - Planet WL3501 driver - RNDIS USB 802.11b driver Driver updates: - Ethernet high-speed NICs: - Intel (100G, ice, idpf): - allow one by one port representors creation and removal - add temperature and clock information reporting - add get/set for ethtool's header split ringparam - add again FW logging - adds support switchdev hardware packet mirroring - iavf: implement symmetric-xor RSS hash - igc: add support for concurrent physical and free-running timers - i40e: increase the allowable descriptors - nVidia/Mellanox: - Preparation for Socket-Direct multi-dev netdev. That will allow in future releases combining multiple PFs devices attached to different NUMA nodes under the same netdev - Broadcom (bnxt): - TX completion handling improvements - add basic ntuple filter support - reduce MSIX vectors usage for MQPRIO offload - add VXLAN support, USO offload and TX coalesce completion for P7 - Marvell Octeon EP: - xmit-more support - add PF-VF mailbox support and use it for FW notifications for VFs - Wangxun (ngbe/txgbe): - implement ethtool functions to operate pause param, ring param, coalesce channel number and msglevel - Netronome/Corigine (nfp): - add flow-steering support - support UDP segmentation offload - Ethernet NICs embedded, slower, virtual: - Xilinx AXI: remove duplicate DMA code adopting the dma engine driver - stmmac: add support for HW-accelerated VLAN stripping - TI AM654x sw: add mqprio, frame preemption & coalescing - gve: add support for non-4k page sizes. - virtio-net: support dynamic coalescing moderation - nVidia/Mellanox Ethernet datacenter switches: - allow firmware upgrade without a reboot - more flexible support for bridge flooding via the compressed FID flooding mode - Ethernet embedded switches: - Microchip: - fine-tune flow control and speed configurations in KSZ8xxx - KSZ88X3: enable setting rmii reference - Renesas: - add jumbo frames support - Marvell: - 88E6xxx: add "eth-mac" and "rmon" stats support - Ethernet PHYs: - aquantia: add firmware load support - at803x: refactor the driver to simplify adding support for more chip variants - NXP C45 TJA11xx: Add MACsec offload support - Wifi: - MediaTek (mt76): - NVMEM EEPROM improvements - mt7996 Extremely High Throughput (EHT) improvements - mt7996 Wireless Ethernet Dispatcher (WED) support - mt7996 36-bit DMA support - Qualcomm (ath12k): - support for a single MSI vector - WCN7850: support AP mode - Intel (iwlwifi): - new debugfs file fw_dbg_clear - allow concurrent P2P operation on DFS channels - Bluetooth: - QCA2066: support HFP offload - ISO: more broadcast-related improvements - NXP: better recovery in case receiver/transmitter get out of sync" * tag 'net-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1714 commits) lan78xx: remove redundant statement in lan78xx_get_eee lan743x: remove redundant statement in lan743x_ethtool_get_eee bnxt_en: Fix RCU locking for ntuple filters in bnxt_rx_flow_steer() bnxt_en: Fix RCU locking for ntuple filters in bnxt_srxclsrldel() bnxt_en: Remove unneeded variable in bnxt_hwrm_clear_vnic_filter() tcp: Revert no longer abort SYN_SENT when receiving some ICMP Revert "mlx5 updates 2023-12-20" Revert "net: stmmac: Enable Per DMA Channel interrupt" ipvlan: Remove usage of the deprecated ida_simple_xx() API ipvlan: Fix a typo in a comment net/sched: Remove ipt action tests net: stmmac: Use interrupt mode INTM=1 for per channel irq net: stmmac: Add support for TX/RX channel interrupt net: stmmac: Make MSI interrupt routine generic dt-bindings: net: snps,dwmac: per channel irq net: phy: at803x: make read_status more generic net: phy: at803x: add support for cdt cross short test for qca808x net: phy: at803x: refactor qca808x cable test get status function net: phy: at803x: generalize cdt fault length function net: ethernet: cortina: Drop TSO support ... |
||
Linus Torvalds
|
120a201bd2 |
hardening updates for v6.8-rc1
- Introduce the param_unknown_fn type and other clean ups (Andy Shevchenko) - Various __counted_by annotations (Christophe JAILLET, Gustavo A. R. Silva, Kees Cook) - Add KFENCE test to LKDTM (Stephen Boyd) - Various strncpy() refactorings (Justin Stitt) - Fix qnx4 to avoid writing into the smaller of two overlapping buffers - Various strlcpy() refactorings -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmWcOsQWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJoiDD/9gNhalNG+6MNF5TDwSvO9X7pvL bQ6D3clByRxYjnJ4dMQ7p3s+rJ937uQt9PezIWHgRoldjQy3x7AJ5BxkhjeMlD2B YLbfdVYPy09X0Ewk1Efvfm/ta6tJpBGYF7Bc7LIneZrdQ6gemBpLW1PNZAFYzcWX oDjV+M1NytxaiF0aebxPZvZ1W+NGQ105Sxvj5MheDoezyO/j0CTe+ZYtCzFguFY0 8SPpR5FG4AFidb8GHd5Ndv0trVWjF1jat0FUFgEFOCE0fJNWLVR0Bbr2MtXiG7wL LF7IZ/Mn+mi+O3BmcD6JiaYf9EPlMUXCyqc8NvsnoWGqhWhWmQPCInZVrpplMUNK V/UHVMkmjDs4f/lAHBJoJHDK6fmOD+cAFaNMOltfErcjV4s+lEo6vHoiKl8hfPnH EzpQaK3funGroVYwTc35e07NrJJHCzqIUhZ0FJO7ByuOE2tIomiVo9Xy9gy54iCT qzC7zkrZ0MKqui4qiUY9FWayRRYLX4qNxELm4yie6Pzmk8943hNOaDofcyKWuZFC eqvhIkvqb4LasLrzCBk+ehA2KWSRmTrR6E9IygwbBXUTsvn2yj2RRYeAlGQNBTBZ adgSXQpRBmtKYqyihWLhP4QcunknEiQdDS3lS2qJmPH33Iv3jGH4yS6BNIBufMGL PoC2UxSfGd+YT079fw== =1Wxx -----END PGP SIGNATURE----- Merge tag 'hardening-v6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening updates from Kees Cook: - Introduce the param_unknown_fn type and other clean ups (Andy Shevchenko) - Various __counted_by annotations (Christophe JAILLET, Gustavo A. R. Silva, Kees Cook) - Add KFENCE test to LKDTM (Stephen Boyd) - Various strncpy() refactorings (Justin Stitt) - Fix qnx4 to avoid writing into the smaller of two overlapping buffers - Various strlcpy() refactorings * tag 'hardening-v6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: qnx4: Use get_directory_fname() in qnx4_match() qnx4: Extract dir entry filename processing into helper atags_proc: Add __counted_by for struct buffer and use struct_size() tracing/uprobe: Replace strlcpy() with strscpy() params: Fix multi-line comment style params: Sort headers params: Use size_add() for kmalloc() params: Do not go over the limit when getting the string length params: Introduce the param_unknown_fn type lkdtm: Add kfence read after free crash type nvme-fc: replace deprecated strncpy with strscpy nvdimm/btt: replace deprecated strncpy with strscpy nvme-fabrics: replace deprecated strncpy with strscpy drm/modes: replace deprecated strncpy with strscpy_pad afs: Add __counted_by for struct afs_acl and use struct_size() VMCI: Annotate struct vmci_handle_arr with __counted_by i40e: Annotate struct i40e_qvlist_info with __counted_by HID: uhid: replace deprecated strncpy with strscpy samples: Replace strlcpy() with strscpy() SUNRPC: Replace strlcpy() with strscpy() |
||
Linus Torvalds
|
fb46e22a9e |
Many singleton patches against the MM code. The patch series which
are included in this merge do the following: - Peng Zhang has done some mapletree maintainance work in the series "maple_tree: add mt_free_one() and mt_attr() helpers" "Some cleanups of maple tree" - In the series "mm: use memmap_on_memory semantics for dax/kmem" Vishal Verma has altered the interworking between memory-hotplug and dax/kmem so that newly added 'device memory' can more easily have its memmap placed within that newly added memory. - Matthew Wilcox continues folio-related work (including a few fixes) in the patch series "Add folio_zero_tail() and folio_fill_tail()" "Make folio_start_writeback return void" "Fix fault handler's handling of poisoned tail pages" "Convert aops->error_remove_page to ->error_remove_folio" "Finish two folio conversions" "More swap folio conversions" - Kefeng Wang has also contributed folio-related work in the series "mm: cleanup and use more folio in page fault" - Jim Cromie has improved the kmemleak reporting output in the series "tweak kmemleak report format". - In the series "stackdepot: allow evicting stack traces" Andrey Konovalov to permits clients (in this case KASAN) to cause eviction of no longer needed stack traces. - Charan Teja Kalla has fixed some accounting issues in the page allocator's atomic reserve calculations in the series "mm: page_alloc: fixes for high atomic reserve caluculations". - Dmitry Rokosov has added to the samples/ dorectory some sample code for a userspace memcg event listener application. See the series "samples: introduce cgroup events listeners". - Some mapletree maintanance work from Liam Howlett in the series "maple_tree: iterator state changes". - Nhat Pham has improved zswap's approach to writeback in the series "workload-specific and memory pressure-driven zswap writeback". - DAMON/DAMOS feature and maintenance work from SeongJae Park in the series "mm/damon: let users feed and tame/auto-tune DAMOS" "selftests/damon: add Python-written DAMON functionality tests" "mm/damon: misc updates for 6.8" - Yosry Ahmed has improved memcg's stats flushing in the series "mm: memcg: subtree stats flushing and thresholds". - In the series "Multi-size THP for anonymous memory" Ryan Roberts has added a runtime opt-in feature to transparent hugepages which improves performance by allocating larger chunks of memory during anonymous page faults. - Matthew Wilcox has also contributed some cleanup and maintenance work against eh buffer_head code int he series "More buffer_head cleanups". - Suren Baghdasaryan has done work on Andrea Arcangeli's series "userfaultfd move option". UFFDIO_MOVE permits userspace heap compaction algorithms to move userspace's pages around rather than UFFDIO_COPY'a alloc/copy/free. - Stefan Roesch has developed a "KSM Advisor", in the series "mm/ksm: Add ksm advisor". This is a governor which tunes KSM's scanning aggressiveness in response to userspace's current needs. - Chengming Zhou has optimized zswap's temporary working memory use in the series "mm/zswap: dstmem reuse optimizations and cleanups". - Matthew Wilcox has performed some maintenance work on the writeback code, both code and within filesystems. The series is "Clean up the writeback paths". - Andrey Konovalov has optimized KASAN's handling of alloc and free stack traces for secondary-level allocators, in the series "kasan: save mempool stack traces". - Andrey also performed some KASAN maintenance work in the series "kasan: assorted clean-ups". - David Hildenbrand has gone to town on the rmap code. Cleanups, more pte batching, folio conversions and more. See the series "mm/rmap: interface overhaul". - Kinsey Ho has contributed some maintenance work on the MGLRU code in the series "mm/mglru: Kconfig cleanup". - Matthew Wilcox has contributed lruvec page accounting code cleanups in the series "Remove some lruvec page accounting functions". -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCZZyF2wAKCRDdBJ7gKXxA jjWjAP42LHvGSjp5M+Rs2rKFL0daBQsrlvy6/jCHUequSdWjSgEAmOx7bc5fbF27 Oa8+DxGM9C+fwqZ/7YxU2w/WuUmLPgU= =0NHs -----END PGP SIGNATURE----- Merge tag 'mm-stable-2024-01-08-15-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: "Many singleton patches against the MM code. The patch series which are included in this merge do the following: - Peng Zhang has done some mapletree maintainance work in the series 'maple_tree: add mt_free_one() and mt_attr() helpers' 'Some cleanups of maple tree' - In the series 'mm: use memmap_on_memory semantics for dax/kmem' Vishal Verma has altered the interworking between memory-hotplug and dax/kmem so that newly added 'device memory' can more easily have its memmap placed within that newly added memory. - Matthew Wilcox continues folio-related work (including a few fixes) in the patch series 'Add folio_zero_tail() and folio_fill_tail()' 'Make folio_start_writeback return void' 'Fix fault handler's handling of poisoned tail pages' 'Convert aops->error_remove_page to ->error_remove_folio' 'Finish two folio conversions' 'More swap folio conversions' - Kefeng Wang has also contributed folio-related work in the series 'mm: cleanup and use more folio in page fault' - Jim Cromie has improved the kmemleak reporting output in the series 'tweak kmemleak report format'. - In the series 'stackdepot: allow evicting stack traces' Andrey Konovalov to permits clients (in this case KASAN) to cause eviction of no longer needed stack traces. - Charan Teja Kalla has fixed some accounting issues in the page allocator's atomic reserve calculations in the series 'mm: page_alloc: fixes for high atomic reserve caluculations'. - Dmitry Rokosov has added to the samples/ dorectory some sample code for a userspace memcg event listener application. See the series 'samples: introduce cgroup events listeners'. - Some mapletree maintanance work from Liam Howlett in the series 'maple_tree: iterator state changes'. - Nhat Pham has improved zswap's approach to writeback in the series 'workload-specific and memory pressure-driven zswap writeback'. - DAMON/DAMOS feature and maintenance work from SeongJae Park in the series 'mm/damon: let users feed and tame/auto-tune DAMOS' 'selftests/damon: add Python-written DAMON functionality tests' 'mm/damon: misc updates for 6.8' - Yosry Ahmed has improved memcg's stats flushing in the series 'mm: memcg: subtree stats flushing and thresholds'. - In the series 'Multi-size THP for anonymous memory' Ryan Roberts has added a runtime opt-in feature to transparent hugepages which improves performance by allocating larger chunks of memory during anonymous page faults. - Matthew Wilcox has also contributed some cleanup and maintenance work against eh buffer_head code int he series 'More buffer_head cleanups'. - Suren Baghdasaryan has done work on Andrea Arcangeli's series 'userfaultfd move option'. UFFDIO_MOVE permits userspace heap compaction algorithms to move userspace's pages around rather than UFFDIO_COPY'a alloc/copy/free. - Stefan Roesch has developed a 'KSM Advisor', in the series 'mm/ksm: Add ksm advisor'. This is a governor which tunes KSM's scanning aggressiveness in response to userspace's current needs. - Chengming Zhou has optimized zswap's temporary working memory use in the series 'mm/zswap: dstmem reuse optimizations and cleanups'. - Matthew Wilcox has performed some maintenance work on the writeback code, both code and within filesystems. The series is 'Clean up the writeback paths'. - Andrey Konovalov has optimized KASAN's handling of alloc and free stack traces for secondary-level allocators, in the series 'kasan: save mempool stack traces'. - Andrey also performed some KASAN maintenance work in the series 'kasan: assorted clean-ups'. - David Hildenbrand has gone to town on the rmap code. Cleanups, more pte batching, folio conversions and more. See the series 'mm/rmap: interface overhaul'. - Kinsey Ho has contributed some maintenance work on the MGLRU code in the series 'mm/mglru: Kconfig cleanup'. - Matthew Wilcox has contributed lruvec page accounting code cleanups in the series 'Remove some lruvec page accounting functions'" * tag 'mm-stable-2024-01-08-15-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (361 commits) mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER mm, treewide: introduce NR_PAGE_ORDERS selftests/mm: add separate UFFDIO_MOVE test for PMD splitting selftests/mm: skip test if application doesn't has root privileges selftests/mm: conform test to TAP format output selftests: mm: hugepage-mmap: conform to TAP format output selftests/mm: gup_test: conform test to TAP format output mm/selftests: hugepage-mremap: conform test to TAP format output mm/vmstat: move pgdemote_* out of CONFIG_NUMA_BALANCING mm: zsmalloc: return -ENOSPC rather than -EINVAL in zs_malloc while size is too large mm/memcontrol: remove __mod_lruvec_page_state() mm/khugepaged: use a folio more in collapse_file() slub: use a folio in __kmalloc_large_node slub: use folio APIs in free_large_kmalloc() slub: use alloc_pages_node() in alloc_slab_page() mm: remove inc/dec lruvec page state functions mm: ratelimit stat flush from workingset shrinker kasan: stop leaking stack trace handles mm/mglru: remove CONFIG_TRANSPARENT_HUGEPAGE mm/mglru: add dummy pmd_dirty() ... |
||
Colin Ian King
|
32f24938a1 |
samples/bpf: Use %lu format specifier for unsigned long values
Currently %ld format specifiers are being used for unsigned long values. Fix this by using %lu instead. Cleans up cppcheck warnings: warning: %ld in format string (no. 1) requires 'long' but the argument type is 'unsigned long'. [invalidPrintfArgType_sint] Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/bpf/20231219152307.368921-1-colin.i.king@gmail.com |
||
Steven Rostedt (Google)
|
d23569979c |
tracing: Allow creating instances with specified system events
A trace instance may only need to enable specific events. As the eventfs directory of an instance currently creates all events which adds overhead, allow internal instances to be created with just the events in systems that they care about. This currently only deals with systems and not individual events, but this should bring down the overhead of creating instances for specific use cases quite bit. The trace_array_get_by_name() now has another parameter "systems". This parameter is a const string pointer of a comma/space separated list of event systems that should be created by the trace_array. (Note if the trace_array already exists, this parameter is ignored). The list of systems is saved and if a module is loaded, its events will not be added unless the system for those events also match the systems string. Link: https://lore.kernel.org/linux-trace-kernel/20231213093701.03fddec0@gandalf.local.home Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: Arun Easi <aeasi@marvell.com> Cc: Daniel Wagner <dwagner@suse.de> Tested-by: Dmytro Maluka <dmaluka@chromium.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> |
||
Benjamin Gaignard
|
80c2b40a51 |
media: videobuf2: core: Rename min_buffers_needed field in vb2_queue
Rename min_buffers_needed into min_queued_buffers and update the documentation about it. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil: Drop the change where min_queued_buffers + 1 buffers would be] [hverkuil: allocated. Now this patch only renames this field instead of making] [hverkuil: a functional change as well.] [hverkuil: Renamed 3 remaining min_buffers_needed occurrences.] |
||
Dmitry Rokosov
|
becf652960 |
samples/cgroup: introduce memcg memory.events listener
This is a simple listener for memory events that handles counter changes in runtime. It can be set up for a specific memory cgroup v2. The output example: ===== $ /tmp/memcg_event_listener test Initialized MEMCG events with counters: MEMCG events: low: 0 high: 0 max: 0 oom: 0 oom_kill: 0 oom_group_kill: 0 Started monitoring memory events from '/sys/fs/cgroup/test/memory.events'... Received event in /sys/fs/cgroup/test/memory.events: *** 1 MEMCG oom_kill event, change counter 0 => 1 Received event in /sys/fs/cgroup/test/memory.events: *** 1 MEMCG oom_kill event, change counter 1 => 2 Received event in /sys/fs/cgroup/test/memory.events: *** 1 MEMCG oom_kill event, change counter 2 => 3 Received event in /sys/fs/cgroup/test/memory.events: *** 1 MEMCG oom_kill event, change counter 3 => 4 Received event in /sys/fs/cgroup/test/memory.events: *** 2 MEMCG max events, change counter 0 => 2 Received event in /sys/fs/cgroup/test/memory.events: *** 8 MEMCG max events, change counter 2 => 10 *** 1 MEMCG oom event, change counter 0 => 1 Received event in /sys/fs/cgroup/test/memory.events: *** 1 MEMCG oom_kill event, change counter 4 => 5 ^CExiting memcg event listener... ===== Link: https://lkml.kernel.org/r/20231123071945.25811-3-ddrokosov@salutedevices.com Signed-off-by: Dmitry Rokosov <ddrokosov@salutedevices.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Muchun Song <muchun.song@linux.dev> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Shakeel Butt <shakeelb@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Dmitry Rokosov
|
60433a9d03 |
samples: introduce new samples subdir for cgroup
Patch series "samples: introduce cgroup events listeners", v3. To begin with, this patch series relocates the cgroup example code to the samples/cgroup directory, which is the appropriate location for such code snippets. Furthermore, a new memcg events listener is introduced. This listener is a simple yet effective tool for monitoring memory events and managing counter changes during runtime. Additionally, as per Andrew Morton's suggestion, a helpful reminder comment is included in the memcontrol implementation. This comment serves to ensure that the samples code is updated whenever new events are added. This patch (of 3): Move the cgroup_event_listener for cgroup v1 to the samples directory. This suggestion was proposed by Andrew Morton during the discussion [1]. Link: https://lore.kernel.org/all/20231106140934.3f5d4960141562fe8da53906@linux-foundation.org/ [1] Link: https://lkml.kernel.org/r/20231123071945.25811-1-ddrokosov@salutedevices.com Link: https://lkml.kernel.org/r/20231123071945.25811-2-ddrokosov@salutedevices.com Signed-off-by: Dmitry Rokosov <ddrokosov@salutedevices.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Muchun Song <muchun.song@linux.dev> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Shakeel Butt <shakeelb@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Kees Cook
|
40b2519d75 |
samples: Replace strlcpy() with strscpy()
strlcpy() reads the entire source buffer first. This read may exceed the destination size limit. This is both inefficient and can lead to linear read overflows if a source string is not NUL-terminated[1]. Additionally, it returns the size of the source string, not the resulting size of the destination string. In an effort to remove strlcpy() completely[2], replace strlcpy() here with strscpy(). Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy [1] Link: https://github.com/KSPP/linux/issues/89 [2] Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Valentin Schneider <vschneid@redhat.com> Cc: "Steven Rostedt (Google)" <rostedt@goodmis.org> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Geliang Tang <geliang.tang@suse.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: "Steven Rostedt (Google)" <rostedt@goodmis.org> Link: https://lore.kernel.org/r/20231116191510.work.550-kees@kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> |
||
Christian Brauner
|
3652117f85 |
eventfd: simplify eventfd_signal()
Ever since the eventfd type was introduced back in 2007 in commit
|
||
Benjamin Gaignard
|
88d9ce34a6 |
media: sample: v4l: Stop direct calls to queue num_buffers field
Use vb2_get_num_buffers() to avoid using queue num_buffers field directly. This allows us to change how the number of buffers is computed in the future. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> |
||
Linus Torvalds
|
136cc1e1f5 |
Landlock updates for v6.7-rc1
-----BEGIN PGP SIGNATURE----- iIYEABYIAC4WIQSVyBthFV4iTW/VU1/l49DojIL20gUCZUOZKRAcbWljQGRpZ2lr b2QubmV0AAoJEOXj0OiMgvbSoaIBAMHG8wxzRcTMplddgQHXmbWPByFIjhA0hqqp +hEgLFfyAQCqLPi4fW49CokrkynATKXTLMIBfZ37EYZ3llJgveHTDw== =rPTd -----END PGP SIGNATURE----- Merge tag 'landlock-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux Pull landlock updates from Mickaël Salaün: "A Landlock ruleset can now handle two new access rights: LANDLOCK_ACCESS_NET_BIND_TCP and LANDLOCK_ACCESS_NET_CONNECT_TCP. When handled, the related actions are denied unless explicitly allowed by a Landlock network rule for a specific port. The related patch series has been reviewed for almost two years, it has evolved a lot and we now have reached a decent design, code and testing. The refactored kernel code and the new test helpers also bring the foundation to support more network protocols. Test coverage for security/landlock is 92.4% of 710 lines according to gcc/gcov-13, and it was 93.1% of 597 lines before this series. The decrease in coverage is due to code refactoring to make the ruleset management more generic (i.e. dealing with inodes and ports) that also added new WARN_ON_ONCE() checks not possible to test from user space. syzkaller has been updated accordingly [4], and such patched instance (tailored to Landlock) has been running for a month, covering all the new network-related code [5]" Link: https://lore.kernel.org/r/20231026014751.414649-1-konstantin.meskhidze@huawei.com [1] Link: https://lore.kernel.org/r/CAHC9VhS1wwgH6NNd+cJz4MYogPiRV8NyPDd1yj5SpaxeUB4UVg@mail.gmail.com [2] Link: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next-history.git/commit/?id=c8dc5ee69d3a [3] Link: https://github.com/google/syzkaller/pull/4266 [4] Link: https://storage.googleapis.com/syzbot-assets/82e8608dec36/ci-upstream-linux-next-kasan-gce-root-ab577164.html#security%2flandlock%2fnet.c [5] * tag 'landlock-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: selftests/landlock: Add tests for FS topology changes with network rules landlock: Document network support samples/landlock: Support TCP restrictions selftests/landlock: Add network tests selftests/landlock: Share enforce_ruleset() helper landlock: Support network rules with TCP bind and connect landlock: Refactor landlock_add_rule() syscall landlock: Refactor layer helpers landlock: Move and rename layer helpers landlock: Refactor merge/inherit_ruleset helpers landlock: Refactor landlock_find_rule/insert_rule helpers landlock: Allow FS topology changes for domains without such rule type landlock: Make ruleset's access masks more generic |
||
Linus Torvalds
|
05bf73aa27 |
Probes updates for v6.7:
- cleanups: . kprobes: Fixes typo in kprobes samples. . tracing/eprobes: Remove 'break' after return. - kretprobe/fprobe performance improvements: . lib: Introduce new `objpool`, which is a high performance lockless object queue. This uses per-cpu ring array to allocate/release objects from the pre-allocated object pool. Since the index of ring array is a 32bit sequential counter, we can retry to push/pop the object pointer from the ring without lock (as seq-lock does). . lib: Add an objpool test module to test the functionality and evaluate the performance under some circumstances. . kprobes/fprobe: Improve kretprobe and rethook scalability performance with objpool. This improves both legacy kretprobe and fprobe exit handler (which is based on rethook) to be scalable on SMP systems. Even with 8-threads parallel test, it shows a great scalability improvement. . Remove unneeded freelist.h which is replaced by objpool. . objpool: Add maintainers entry for the objpool. . objpool: Fix to remove unused include header lines. -----BEGIN PGP SIGNATURE----- iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmVA54obHG1hc2FtaS5o aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8busoH/3mG/rJwVVJw70zTLlfs ko4U1wn16aImYQYYLXkZLlYsKr6Y2dzNkb5C4CEI2r47EZjTamHatGZ6MSwvAtPb u9oloHEbRbE6yM+EjrE1JAKT9FwC+21/yZCN2zACZKJRwCwQRzxGIXUwGTWtDNdE NySLBDyMoR6zZJsFy8YueFBAJxcZdWIPK6mQH2Y5awVQA4tV7tQEe92KFqUYWTd5 exbfBbcVG8MBWmrPqRI46Hxh0NWOnPCqFwGqX8Q7hE/yrQnTPzJ+2ZsbYFkGRk6A pM5wRCdwO5+OlcHEcEHBMQSGCmFgk6m1UMG8RvbCKyF3cwHbxzlelbjzHosKQvSh EKQ= =/vZK -----END PGP SIGNATURE----- Merge tag 'probes-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull probes updates from Masami Hiramatsu: "Cleanups: - kprobes: Fixes typo in kprobes samples - tracing/eprobes: Remove 'break' after return kretprobe/fprobe performance improvements: - lib: Introduce new `objpool`, which is a high performance lockless object queue. This uses per-cpu ring array to allocate/release objects from the pre-allocated object pool. Since the index of ring array is a 32bit sequential counter, we can retry to push/pop the object pointer from the ring without lock (as seq-lock does) - lib: Add an objpool test module to test the functionality and evaluate the performance under some circumstances - kprobes/fprobe: Improve kretprobe and rethook scalability performance with objpool. This improves both legacy kretprobe and fprobe exit handler (which is based on rethook) to be scalable on SMP systems. Even with 8-threads parallel test, it shows a great scalability improvement - Remove unneeded freelist.h which is replaced by objpool - objpool: Add maintainers entry for the objpool - objpool: Fix to remove unused include header lines" * tag 'probes-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: kprobes: unused header files removed MAINTAINERS: objpool added kprobes: freelist.h removed kprobes: kretprobe scalability improvement lib: objpool test module added lib: objpool added: ring-array based lockless MPMC tracing/eprobe: drop unneeded breaks samples: kprobes: Fixes a typo |
||
Linus Torvalds
|
deefd5024f |
VFIO updates for v6.7
- Add support for "chunk mode" in the mlx5-vfio-pci variant driver, which allows both larger device image sizes for migration, beyond the previous 4GB limit, and also read-ahead support for improved migration performance. (Yishai Hadas) - A new bus master control interface for the CDX bus driver where there is no in-band mechanism to toggle device DMA as there is through config space on PCI devices. (Nipun Gupta) - Add explicit alignment directives to vfio data structures to reduce the chance of breaking 32-bit userspace. In most cases this is transparent and the remaining cases where data structures are padded work within the existing rules for extending data structures within vfio. (Stefan Hajnoczi) - Resolve a bug in the cdx bus driver noted when compiled with clang where missing parenthesis result in the wrong operation. (Nathan Chancellor) - Resolve errors reported by smatch for a function when dealing with invalid inputs. (Alex Williamson) - Add migration support to the mtty vfio/mdev sample driver for testing and integration purposes, allowing CI of migration without specific hardware requirements. Also resolve many of the short- comings of this driver relative to implementation of the vfio interrupt ioctl along the way. (Alex Williamson) -----BEGIN PGP SIGNATURE----- iQJPBAABCAA5FiEEQvbATlQL0amee4qQI5ubbjuwiyIFAmVALFYbHGFsZXgud2ls bGlhbXNvbkByZWRoYXQuY29tAAoJECObm247sIsigekP/3IbfI8XPUheSE/4f790 TAaot7GBvXs7pBGF0ewtVGn/Lo1p3gWDdbGoJNWNoHGUnzCHBkewpCA0cd2xmn4Y fJTax1WbBdagmMQ7gGFC2x06JgWHZqSX43rD4ZhQDVgv4LhxBJ/eTAdEZocFIKTL a7F/2VH7EaGnybOCOwBDMA8lBr3DJ2eiU25kBYCLRzT61GIwlkurYI7TIX2AcHmW iWA7OwJ8YDzVd6IGBad003hDm0MRmkgGvdSR8rHj0Bnz7tSS6UcsNGu0OsUzJdxF h6SCaK2w8eKjVaU/OmRZrteq1lwryUbuY1Gdceazj0fcvsMnP19k3nWadSZ2+/mv fqC60ahjfN0cIwVeV1GHcGeJI2ImNmCO/Uup7Y+bH9FSc5TQuKK90FRlYmHveUY7 XEkmi8rcpwEvcrOHT8uZxSRyi6lbjo7i88DWPJ1ByyM82l1rg2ktNI1KEOsvQOdV QteFdD3e8mHQYwTAI4MbhWPRvJsN+RM05UKrTvpFHwa4eUqfaJQ0SJktbZIlm/XB 8UFPF+h6iUFuqJwAH4zlEvDyjMZlAkp9redlKklyGPUreW8MOo/1yoOl7Q5dgibj +ZTy7IJjrGXrTpeL1QohBl3BHrGMM2O3rYubkXKZIOU38MdXXn4xzDY+w+fNwB5l c/oIN2i1TIUr4Ub0BfI7Fxk7 =3kXB -----END PGP SIGNATURE----- Merge tag 'vfio-v6.7-rc1' of https://github.com/awilliam/linux-vfio Pull VFIO updates from Alex Williamson: - Add support for "chunk mode" in the mlx5-vfio-pci variant driver, which allows both larger device image sizes for migration, beyond the previous 4GB limit, and also read-ahead support for improved migration performance (Yishai Hadas) - A new bus master control interface for the CDX bus driver where there is no in-band mechanism to toggle device DMA as there is through config space on PCI devices (Nipun Gupta) - Add explicit alignment directives to vfio data structures to reduce the chance of breaking 32-bit userspace. In most cases this is transparent and the remaining cases where data structures are padded work within the existing rules for extending data structures within vfio (Stefan Hajnoczi) - Resolve a bug in the cdx bus driver noted when compiled with clang where missing parenthesis result in the wrong operation (Nathan Chancellor) - Resolve errors reported by smatch for a function when dealing with invalid inputs (Alex Williamson) - Add migration support to the mtty vfio/mdev sample driver for testing and integration purposes, allowing CI of migration without specific hardware requirements. Also resolve many of the short- comings of this driver relative to implementation of the vfio interrupt ioctl along the way (Alex Williamson) * tag 'vfio-v6.7-rc1' of https://github.com/awilliam/linux-vfio: vfio/mtty: Enable migration support vfio/mtty: Overhaul mtty interrupt handling vfio: Fix smatch errors in vfio_combine_iova_ranges() vfio/cdx: Add parentheses between bitwise AND expression and logical NOT vfio/mlx5: Activate the chunk mode functionality vfio/mlx5: Add support for READING in chunk mode vfio/mlx5: Add support for SAVING in chunk mode vfio/mlx5: Pre-allocate chunks for the STOP_COPY phase vfio/mlx5: Rename some stuff to match chunk mode vfio/mlx5: Enable querying state size which is > 4GB vfio/mlx5: Refactor the SAVE callback to activate a work only upon an error vfio/mlx5: Wake up the reader post of disabling the SAVING migration file vfio: use __aligned_u64 in struct vfio_device_ioeventfd vfio: use __aligned_u64 in struct vfio_device_gfx_plane_info vfio: trivially use __aligned_u64 for ioctl structs vfio-cdx: add bus mastering device feature support vfio: add bus master feature to device feature ioctl cdx: add support for bus mastering |
||
Konstantin Meskhidze
|
5e990dcef1
|
samples/landlock: Support TCP restrictions
Add TCP restrictions to the sandboxer demo. It's possible to allow a sandboxer to bind/connect to a list of specified ports restricting network actions to the rest of them. This is controlled with the new LL_TCP_BIND and LL_TCP_CONNECT environment variables. Rename ENV_PATH_TOKEN to ENV_DELIMITER. Signed-off-by: Konstantin Meskhidze <konstantin.meskhidze@huawei.com> Link: https://lore.kernel.org/r/20231026014751.414649-12-konstantin.meskhidze@huawei.com [mic: Extend commit message] Signed-off-by: Mickaël Salaün <mic@digikod.net> |
||
Viktor Malik
|
37db10bc24 |
samples/bpf: Allow building with custom bpftool
samples/bpf build its own bpftool boostrap to generate vmlinux.h as well as some BPF objects. This is a redundant step if bpftool has been already built, so update samples/bpf/Makefile such that it accepts a path to bpftool passed via the BPFTOOL variable. The approach is practically the same as tools/testing/selftests/bpf/Makefile uses. Signed-off-by: Viktor Malik <vmalik@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/bd746954ac271b02468d8d951ff9f11e655d485b.1698213811.git.vmalik@redhat.com |
||
Viktor Malik
|
f56bcfadf7 |
samples/bpf: Fix passing LDFLAGS to libbpf
samples/bpf/Makefile passes LDFLAGS=$(TPROGS_LDFLAGS) to libbpf build without surrounding quotes, which may cause compilation errors when passing custom TPROGS_USER_LDFLAGS. For example: $ make -C samples/bpf/ TPROGS_USER_LDFLAGS="-Wl,--as-needed -specs=/usr/lib/gcc/x86_64-redhat-linux/13/libsanitizer.spec" make: Entering directory './samples/bpf' make -C ../../ M=./samples/bpf BPF_SAMPLES_PATH=./samples/bpf make[1]: Entering directory '.' make -C ./samples/bpf/../../tools/lib/bpf RM='rm -rf' EXTRA_CFLAGS="-Wall -O2 -Wmissing-prototypes -Wstrict-prototypes -I./usr/include -I./tools/testing/selftests/bpf/ -I./samples/bpf/libbpf/include -I./tools/include -I./tools/perf -I./tools/lib -DHAVE_ATTR_TEST=0" \ LDFLAGS=-Wl,--as-needed -specs=/usr/lib/gcc/x86_64-redhat-linux/13/libsanitizer.spec srctree=./samples/bpf/../../ \ O= OUTPUT=./samples/bpf/libbpf/ DESTDIR=./samples/bpf/libbpf prefix= \ ./samples/bpf/libbpf/libbpf.a install_headers make: invalid option -- 'c' make: invalid option -- '=' make: invalid option -- '/' make: invalid option -- 'u' make: invalid option -- '/' [...] Fix the error by properly quoting $(TPROGS_LDFLAGS). Suggested-by: Donald Zickus <dzickus@redhat.com> Signed-off-by: Viktor Malik <vmalik@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/c690de6671cc6c983d32a566d33fd7eabd18b526.1698213811.git.vmalik@redhat.com |
||
Viktor Malik
|
870f09f1ba |
samples/bpf: Allow building with custom CFLAGS/LDFLAGS
Currently, it is not possible to specify custom flags when building samples/bpf. The flags are defined in TPROGS_CFLAGS/TPROGS_LDFLAGS variables, however, when trying to override those from the make command, compilation fails. For example, when trying to build with PIE: $ make -C samples/bpf TPROGS_CFLAGS="-fpie" TPROGS_LDFLAGS="-pie" This is because samples/bpf/Makefile updates these variables, especially appends include paths to TPROGS_CFLAGS and these updates are overridden by setting the variables from the make command. This patch introduces variables TPROGS_USER_CFLAGS/TPROGS_USER_LDFLAGS for this purpose, which can be set from the make command and their values are propagated to TPROGS_CFLAGS/TPROGS_LDFLAGS. Signed-off-by: Viktor Malik <vmalik@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/2d81100b830a71f0e72329cc7781edaefab75f62.1698213811.git.vmalik@redhat.com |
||
Alex Williamson
|
2b88119e35 |
vfio/mtty: Enable migration support
The mtty driver exposes a PCI serial device to userspace and therefore makes an easy target for a sample device supporting migration. The device does not make use of DMA, therefore we can easily claim support for the migration P2P states, as well as dirty logging. This implementation also makes use of PRE_COPY support in order to provide migration stream compatibility testing, which should generally be considered good practice. Reviewed-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/r/20231016224736.2575718-3-alex.williamson@redhat.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com> |
||
Alex Williamson
|
293fbc2881 |
vfio/mtty: Overhaul mtty interrupt handling
The mtty driver does not currently conform to the vfio SET_IRQS uAPI.
For example, it claims to support mask and unmask of INTx, but actually
does nothing. It claims to support AUTOMASK for INTx, but doesn't. It
fails to teardown eventfds under the full semantics specified by the
SET_IRQS ioctl. It also fails to teardown eventfds when the device is
closed, leading to memory leaks. It claims to support the request IRQ,
but doesn't.
Fix all these.
A side effect of this is that QEMU will now report a warning:
vfio <uuid>: Failed to set up UNMASK eventfd signaling for interrupt \
INTX-0: VFIO_DEVICE_SET_IRQS failure: Inappropriate ioctl for device
The fact is that the unmask eventfd was never supported but quietly
failed. mtty never honored the AUTOMASK behavior, therefore there
was nothing to unmask. QEMU is verbose about the failure, but
properly falls back to userspace unmasking.
Fixes:
|
||
Denys Zagorui
|
69a1917030 |
samples: bpf: Fix syscall_tp openat argument
This modification doesn't change behaviour of the syscall_tp But such code is often used as a reference so it should be correct anyway Signed-off-by: Denys Zagorui <dzagorui@cisco.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20231019113521.4103825-1-dzagorui@cisco.com |
||
Atul Kumar Pant
|
a110d17240 |
samples: kprobes: Fixes a typo
Fixes typo in a function name. Link: https://lore.kernel.org/all/20230817170819.77857-1-atulpant.linux@gmail.com/ Signed-off-by: Atul Kumar Pant <atulpant.linux@gmail.com> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> |
||
Stefan Hajnoczi
|
a7bea9f4fe |
vfio: use __aligned_u64 in struct vfio_device_gfx_plane_info
The memory layout of struct vfio_device_gfx_plane_info is architecture-dependent due to a u64 field and a struct size that is not a multiple of 8 bytes: - On x86_64 the struct size is padded to a multiple of 8 bytes. - On x32 the struct size is only a multiple of 4 bytes, not 8. - Other architectures may vary. Use __aligned_u64 to make memory layout consistent. This reduces the chance of 32-bit userspace on a 64-bit kernel breakage. This patch increases the struct size on x32 but this is safe because of the struct's argsz field. The kernel may grow the struct as long as it still supports smaller argsz values from userspace (e.g. applications compiled against older kernel headers). Suggested-by: Jason Gunthorpe <jgg@ziepe.ca> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Link: https://lore.kernel.org/r/20230918205617.1478722-3-stefanha@redhat.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com> |
||
Ruowen Qin
|
9e09b75079 |
samples/bpf: Add -fsanitize=bounds to userspace programs
The sanitizer flag, which is supported by both clang and gcc, would make it easier to debug array index out-of-bounds problems in these programs. Make the Makfile smarter to detect ubsan support from the compiler and add the '-fsanitize=bounds' accordingly. Suggested-by: Mimi Zohar <zohar@linux.ibm.com> Signed-off-by: Jinghao Jia <jinghao@linux.ibm.com> Signed-off-by: Jinghao Jia <jinghao7@illinois.edu> Signed-off-by: Ruowen Qin <ruowenq2@illinois.edu> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Tested-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/bpf/20230927045030.224548-2-ruowenq2@illinois.edu |
||
Jinghao Jia
|
9220c3ef6f |
samples/bpf: syscall_tp_user: Fix array out-of-bound access
Commit |
||
Jinghao Jia
|
0ee352fe0d |
samples/bpf: syscall_tp_user: Rename num_progs into nr_tests
The variable name num_progs causes confusion because that variable really controls the number of rounds the test should be executed. Rename num_progs into nr_tests for the sake of clarity. Signed-off-by: Jinghao Jia <jinghao@linux.ibm.com> Signed-off-by: Ruowen Qin <ruowenq2@illinois.edu> Signed-off-by: Jinghao Jia <jinghao7@illinois.edu> Link: https://lore.kernel.org/r/20230917214220.637721-3-jinghao7@illinois.edu Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
Rong Tao
|
c698eaebdf |
selftests/bpf: trace_helpers.c: Optimize kallsyms cache
Static ksyms often have problems because the number of symbols exceeds the MAX_SYMS limit. Like changing the MAX_SYMS from 300000 to 400000 in commit e76a014334a6("selftests/bpf: Bump and validate MAX_SYMS") solves the problem somewhat, but it's not the perfect way. This commit uses dynamic memory allocation, which completely solves the problem caused by the limitation of the number of kallsyms. At the same time, add APIs: load_kallsyms_local() ksym_search_local() ksym_get_addr_local() free_kallsyms_local() There are used to solve the problem of selftests/bpf updating kallsyms after attach new symbols during testmod testing. Signed-off-by: Rong Tao <rongtao@cestc.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Stanislav Fomichev <sdf@google.com> Link: https://lore.kernel.org/bpf/tencent_C9BDA68F9221F21BE4081566A55D66A9700A@qq.com |
||
Linus Torvalds
|
ec0e2dc810 |
VFIO updates for v6.6-rc1
- VFIO direct character device (cdev) interface support. This extracts the vfio device fd from the container and group model, and is intended to be the native uAPI for use with IOMMUFD. (Yi Liu) - Enhancements to the PCI hot reset interface in support of cdev usage. (Yi Liu) - Fix a potential race between registering and unregistering vfio files in the kvm-vfio interface and extend use of a lock to avoid extra drop and acquires. (Dmitry Torokhov) - A new vfio-pci variant driver for the AMD/Pensando Distributed Services Card (PDS) Ethernet device, supporting live migration. (Brett Creeley) - Cleanups to remove redundant owner setup in cdx and fsl bus drivers, and simplify driver init/exit in fsl code. (Li Zetao) - Fix uninitialized hole in data structure and pad capability structures for alignment. (Stefan Hajnoczi) -----BEGIN PGP SIGNATURE----- iQJPBAABCAA5FiEEQvbATlQL0amee4qQI5ubbjuwiyIFAmTvnDUbHGFsZXgud2ls bGlhbXNvbkByZWRoYXQuY29tAAoJECObm247sIsimEEP/AzG+VRcu5LfYbLGLe0z zB8ts6G7S78wXlmfN/LYi3v92XWvMMcm+vYF8oNAMfr1YL5sibWN6UtQfY1KCr7h nWKdQdqjajJ5yDDZnOFdhqHJGNfmZw6+fey8Z0j8zRI2oymK4DncWWX3g/7L1SNr 9tIexGJef+mOdAmC94yOut3YviAaZ+f95T/xrdXHzzoNr50DD0+PD6AJdKJfKggP vhiC/DAYH3Fofaa6tRasgWuKCYWdjZLR/kxgNpeEmW6kZnbq/dnzZ+kgn4HH1f9G 8p7UKVARR6FfG5aLheWu6Y9PDaKnfnqu8y/hobuE/ivXcmqqK+a6xSxrjgbVs8WJ 94SYnTBRoTlDJaKWa7GxqdgzJnV+s5ZyAgPhjzdi6mLTPWGzkuLhFWGtYL+LZAQ6 pNeZSM6CFBk+bva/xT0nNPCXxPh+/j/Y0G18FREj8aPFc03HrJQqz0RLydvTnoDz nX/by5KdzMSVSVLPr4uDMtAsgxsGqWiFcp7QMw1HhhlLWxqmYbA+mLZaqyMZUUOx 6b/P8WXT9P2I+qPVKWQ5CWyqpsEqm6P+72yg6LOM9kINvgwDhOa7cagMXIuMWYMH Rf97FL+K8p1eIy6AnvRHgFBMM5185uG+0YcJyVqtucDr/k8T/Om6ujAI6JbWtNe6 cLgaVAqKOYqCR4HC9bfVGSbd =eKSR -----END PGP SIGNATURE----- Merge tag 'vfio-v6.6-rc1' of https://github.com/awilliam/linux-vfio Pull VFIO updates from Alex Williamson: - VFIO direct character device (cdev) interface support. This extracts the vfio device fd from the container and group model, and is intended to be the native uAPI for use with IOMMUFD (Yi Liu) - Enhancements to the PCI hot reset interface in support of cdev usage (Yi Liu) - Fix a potential race between registering and unregistering vfio files in the kvm-vfio interface and extend use of a lock to avoid extra drop and acquires (Dmitry Torokhov) - A new vfio-pci variant driver for the AMD/Pensando Distributed Services Card (PDS) Ethernet device, supporting live migration (Brett Creeley) - Cleanups to remove redundant owner setup in cdx and fsl bus drivers, and simplify driver init/exit in fsl code (Li Zetao) - Fix uninitialized hole in data structure and pad capability structures for alignment (Stefan Hajnoczi) * tag 'vfio-v6.6-rc1' of https://github.com/awilliam/linux-vfio: (53 commits) vfio/pds: Send type for SUSPEND_STATUS command vfio/pds: fix return value in pds_vfio_get_lm_file() pds_core: Fix function header descriptions vfio: align capability structures vfio/type1: fix cap_migration information leak vfio/fsl-mc: Use module_fsl_mc_driver macro to simplify the code vfio/cdx: Remove redundant initialization owner in vfio_cdx_driver vfio/pds: Add Kconfig and documentation vfio/pds: Add support for firmware recovery vfio/pds: Add support for dirty page tracking vfio/pds: Add VFIO live migration support vfio/pds: register with the pds_core PF pds_core: Require callers of register/unregister to pass PF drvdata vfio/pds: Initial support for pds VFIO driver vfio: Commonize combine_ranges for use in other VFIO drivers kvm/vfio: avoid bouncing the mutex when adding and deleting groups kvm/vfio: ensure kvg instance stays around in kvm_vfio_group_add() docs: vfio: Add vfio device cdev description vfio: Compile vfio_group infrastructure optionally vfio: Move the IOMMU_CAP_CACHE_COHERENCY check in __vfio_register_dev() ... |
||
Linus Torvalds
|
461f35f014 |
drm for 6.6-rc1
core: - fix gfp flags in drmm_kmalloc gpuva: - add new generic GPU VA manager (for nouveau initially) syncobj: - add new DRM_IOCTL_SYNCOBJ_EVENTFD ioctl dma-buf: - acquire resv lock for mmap() in exporters - support dma-buf self import automatically - docs fixes backlight: - fix fbdev interactions atomic: - improve logging prime: - remove struct gem_prim_mmap plus driver updates gem: - drm_exec: add locking over multiple GEM objects - fix lockdep checking fbdev: - make fbdev userspace interfaces optional - use linux device instead of fbdev device - use deferred i/o helper macros in various drivers - Make FB core selectable without drivers - Remove obsolete flags FBINFO_DEFAULT and FBINFO_FLAG_DEFAULT - Add helper macros and Kconfig tokens for DMA-allocated framebuffer ttm: - support init_on_free - swapout fixes panel: - panel-edp: Support AUO B116XAB01.4 - Support Visionox R66451 plus DT bindings - ld9040: Backlight support, magic improved, Kconfig fix - Convert to of_device_get_match_data() - Fix Kconfig dependencies - simple: Set bpc value to fix warning; Set connector type for AUO T215HVN01; Support Innolux G156HCE-L01 plus DT bindings - ili9881: Support TDO TL050HDV35 LCD panel plus DT bindings - startek: Support KD070FHFID015 MIPI-DSI panel plus DT bindings - sitronix-st7789v: Support Inanbo T28CP45TN89 plus DT bindings; Support EDT ET028013DMA plus DT bindings; Various cleanups - edp: Add timings for N140HCA-EAC - Allow panels and touchscreens to power sequence together - Fix Innolux G156HCE-L01 LVDS clock bridge: - debugfs for chains support - dw-hdmi: Improve support for YUV420 bus format CEC suspend/resume, update EDID on HDMI detect - dw-mipi-dsi: Fix enable/disable of DSI controller - lt9611uxc: Use MODULE_FIRMWARE() - ps8640: Remove broken EDID code - samsung-dsim: Fix command transfer - tc358764: Handle HS/VS polarity; Use BIT() macro; Various cleanups - adv7511: Fix low refresh rate - anx7625: Switch to macros instead of hardcoded values locking fixes - tc358767: fix hardware delays - sitronix-st7789v: Support panel orientation; Support rotation property; Add support for Jasonic JT240MHQS-HWT-EK-E3 plus DT bindings amdgpu: - SDMA 6.1.0 support - HDP 6.1 support - SMUIO 14.0 support - PSP 14.0 support - IH 6.1 support - Lots of checkpatch cleanups - GFX 9.4.3 updates - Add USB PD and IFWI flashing documentation - GPUVM updates - RAS fixes - DRR fixes - FAMS fixes - Virtual display fixes - Soft IH fixes - SMU13 fixes - Rework PSP firmware loading for other IPs - Kernel doc fixes - DCN 3.0.1 fixes - LTTPR fixes - DP MST fixes - DCN 3.1.6 fixes - SMU 13.x fixes - PSP 13.x fixes - SubVP fixes - GC 9.4.3 fixes - Display bandwidth calculation fixes - VCN4 secure submission fixes - Allow building DC on RISC-V - Add visible FB info to bo_print_info - HBR3 fixes - GFX9 MCBP fix - GMC10 vmhub index fix - GMC11 vmhub index fix - Create a new doorbell manager - SR-IOV fixes - initial freesync panel replay support - revert zpos properly until igt regression is fixeed - use TTM to manage doorbell BAR - Expose both current and average power via hwmon if supported amdkfd: - Cleanup CRIU dma-buf handling - Use KIQ to unmap HIQ - GFX 9.4.3 debugger updates - GFX 9.4.2 debugger fixes - Enable cooperative groups fof gfx11 - SVM fixes - Convert older APUs to use dGPU path like newer APUs - Drop IOMMUv2 path as it is no longer used - TBA fix for aldebaran i915: - ICL+ DSI modeset sequence - HDCP improvements - MTL display fixes and cleanups - HSW/BDW PSR1 restored - Init DDI ports in VBT order - General display refactors - Start using plane scale factor for relative data rate - Use shmem for dpt objects - Expose RPS thresholds in sysfs - Apply GuC SLPC min frequency softlimit correctly - Extend Wa_14015795083 to TGL, RKL, DG1 and ADL - Fix a VMA UAF for multi-gt platform - Do not use stolen on MTL due to HW bug - Check HuC and GuC version compatibility on MTL - avoid infinite GPU waits due to premature release of request memory - Fixes and updates for GSC memory allocation - Display SDVO fixes - Take stolen handling out of FBC code - Make i915_coherent_map_type GT-centric - Simplify shmem_create_from_object map_type msm: - SM6125 MDSS support - DPU: SM6125 DPU support - DSI: runtime PM support, burst mode support - DSI PHY: SM6125 support in 14nm DSI PHY driver - GPU: prepare for a7xx - fix a690 firmware - disable relocs on a6xx and newer radeon: - Lots of checkpatch cleanups ast: - improve device-model detection - Represent BMV as virtual connector - Report DP connection status nouveau: - add new exec/bind interface to support Vulkan - document some getparam ioctls - improve VRAM detection - various fixes/cleanups - workraound DPCD issues ivpu: - MMU updates - debugfs support - Support vpu4 virtio: - add sync object support atmel-hlcdc: - Support inverted pixclock polarity etnaviv: - runtime PM cleanups - hang handling fixes exynos: - use fbdev DMA helpers - fix possible NULL ptr dereference komeda: - always attach encoder omapdrm: - use fbdev DMA helpers ingenic: - kconfig regmap fixes loongson: - support display controller mediatek: - Small mtk-dpi cleanups - DisplayPort: support eDP and aux-bus - Fix coverity issues - Fix potential memory leak if vmap() fail mgag200: - minor fixes mxsfb: - support disabling overlay planes panfrost: - fix sync in IRQ handling ssd130x: - Support per-controller default resolution plus DT bindings - Reduce memory-allocation overhead - Improve intermediate buffer size computation - Fix allocation of temporary buffers - Fix pitch computation - Fix shadow plane allocation tegra: - use fbdev DMA helpers - Convert to devm_platform_ioremap_resource() - support bridge/connector - enable PM tidss: - Support TI AM625 plus DT bindings - Implement new connector model plus driver updates vkms: - improve write back support - docs fixes - support gamma LUT zynqmp-dpsub: - misc fixes -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmTukSYACgkQDHTzWXnE hr6vnQ/+J7vBVkBr8JsaEV/twcZwzbNdpivsIagd8U83GQB50nDReVXbNx+Wo0/C WiGlrC6Sw3NVOGbkigd5IQ7fb5C/7RnBmzMi/iS7Qnk2uEqLqgV00VxfGwdm6wgr 0gNB8zuu2xYphHz2K8LzwnmeQRdN+YUQpUa2wNzLO88IEkTvq5vx2rJEn5p9/3hp OxbbPBzpDRRPlkNFfVQCN8todbKdsPc4am81Eqgv7BJf21RFgQodPGW5koCYuv0w 3m+PJh1KkfYAL974EsLr/pkY7yhhiZ6SlFLX8ssg4FyZl/Vthmc9bl14jRq/pqt4 GBp8yrPq1XjrwXR8wv3MiwNEdANQ+KD9IoGlzLxqVgmEFRE+g4VzZZXeC3AIrTVP FPg4iLUrDrmj9RpJmbVqhq9X2jZs+EtRAFkJPrPbq2fItAD2a2dW4X3ISSnnTqDI 6O2dVwuLCU6OfWnvN4bPW9p8CqRgR8Itqv1SI8qXooDy307YZu1eTUf5JAVwG/SW xbDEFVFlMPyFLm+KN5dv1csJKK21vWi9gLg8phK8mTWYWnqMEtJqbxbRzmdBEFmE pXKVu01P6ZqgBbaETpCljlOaEDdJnvO4W+o70MgBtpR2IWFMbMNO+iS0EmLZ6Vgj 9zYZctpL+dMuHV0Of1GMkHFRHTMYEzW4tuctLIQfG13y4WzyczY= =CwV9 -----END PGP SIGNATURE----- Merge tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm Pull drm updates from Dave Airlie: "The drm core grew a new generic gpu virtual address manager, and new execution locking helpers. These are used by nouveau now to provide uAPI support for the userspace Vulkan driver. AMD had a bunch of new IP core support, loads of refactoring around fbdev, but mostly just the usual amount of stuff across the board. core: - fix gfp flags in drmm_kmalloc gpuva: - add new generic GPU VA manager (for nouveau initially) syncobj: - add new DRM_IOCTL_SYNCOBJ_EVENTFD ioctl dma-buf: - acquire resv lock for mmap() in exporters - support dma-buf self import automatically - docs fixes backlight: - fix fbdev interactions atomic: - improve logging prime: - remove struct gem_prim_mmap plus driver updates gem: - drm_exec: add locking over multiple GEM objects - fix lockdep checking fbdev: - make fbdev userspace interfaces optional - use linux device instead of fbdev device - use deferred i/o helper macros in various drivers - Make FB core selectable without drivers - Remove obsolete flags FBINFO_DEFAULT and FBINFO_FLAG_DEFAULT - Add helper macros and Kconfig tokens for DMA-allocated framebuffer ttm: - support init_on_free - swapout fixes panel: - panel-edp: Support AUO B116XAB01.4 - Support Visionox R66451 plus DT bindings - ld9040: - Backlight support - magic improved - Kconfig fix - Convert to of_device_get_match_data() - Fix Kconfig dependencies - simple: - Set bpc value to fix warning - Set connector type for AUO T215HVN01 - Support Innolux G156HCE-L01 plus DT bindings - ili9881: Support TDO TL050HDV35 LCD panel plus DT bindings - startek: Support KD070FHFID015 MIPI-DSI panel plus DT bindings - sitronix-st7789v: - Support Inanbo T28CP45TN89 plus DT bindings - Support EDT ET028013DMA plus DT bindings - Various cleanups - edp: Add timings for N140HCA-EAC - Allow panels and touchscreens to power sequence together - Fix Innolux G156HCE-L01 LVDS clock bridge: - debugfs for chains support - dw-hdmi: - Improve support for YUV420 bus format - CEC suspend/resume - update EDID on HDMI detect - dw-mipi-dsi: Fix enable/disable of DSI controller - lt9611uxc: Use MODULE_FIRMWARE() - ps8640: Remove broken EDID code - samsung-dsim: Fix command transfer - tc358764: - Handle HS/VS polarity - Use BIT() macro - Various cleanups - adv7511: Fix low refresh rate - anx7625: - Switch to macros instead of hardcoded values - locking fixes - tc358767: fix hardware delays - sitronix-st7789v: - Support panel orientation - Support rotation property - Add support for Jasonic JT240MHQS-HWT-EK-E3 plus DT bindings amdgpu: - SDMA 6.1.0 support - HDP 6.1 support - SMUIO 14.0 support - PSP 14.0 support - IH 6.1 support - Lots of checkpatch cleanups - GFX 9.4.3 updates - Add USB PD and IFWI flashing documentation - GPUVM updates - RAS fixes - DRR fixes - FAMS fixes - Virtual display fixes - Soft IH fixes - SMU13 fixes - Rework PSP firmware loading for other IPs - Kernel doc fixes - DCN 3.0.1 fixes - LTTPR fixes - DP MST fixes - DCN 3.1.6 fixes - SMU 13.x fixes - PSP 13.x fixes - SubVP fixes - GC 9.4.3 fixes - Display bandwidth calculation fixes - VCN4 secure submission fixes - Allow building DC on RISC-V - Add visible FB info to bo_print_info - HBR3 fixes - GFX9 MCBP fix - GMC10 vmhub index fix - GMC11 vmhub index fix - Create a new doorbell manager - SR-IOV fixes - initial freesync panel replay support - revert zpos properly until igt regression is fixeed - use TTM to manage doorbell BAR - Expose both current and average power via hwmon if supported amdkfd: - Cleanup CRIU dma-buf handling - Use KIQ to unmap HIQ - GFX 9.4.3 debugger updates - GFX 9.4.2 debugger fixes - Enable cooperative groups fof gfx11 - SVM fixes - Convert older APUs to use dGPU path like newer APUs - Drop IOMMUv2 path as it is no longer used - TBA fix for aldebaran i915: - ICL+ DSI modeset sequence - HDCP improvements - MTL display fixes and cleanups - HSW/BDW PSR1 restored - Init DDI ports in VBT order - General display refactors - Start using plane scale factor for relative data rate - Use shmem for dpt objects - Expose RPS thresholds in sysfs - Apply GuC SLPC min frequency softlimit correctly - Extend Wa_14015795083 to TGL, RKL, DG1 and ADL - Fix a VMA UAF for multi-gt platform - Do not use stolen on MTL due to HW bug - Check HuC and GuC version compatibility on MTL - avoid infinite GPU waits due to premature release of request memory - Fixes and updates for GSC memory allocation - Display SDVO fixes - Take stolen handling out of FBC code - Make i915_coherent_map_type GT-centric - Simplify shmem_create_from_object map_type msm: - SM6125 MDSS support - DPU: SM6125 DPU support - DSI: runtime PM support, burst mode support - DSI PHY: SM6125 support in 14nm DSI PHY driver - GPU: prepare for a7xx - fix a690 firmware - disable relocs on a6xx and newer radeon: - Lots of checkpatch cleanups ast: - improve device-model detection - Represent BMV as virtual connector - Report DP connection status nouveau: - add new exec/bind interface to support Vulkan - document some getparam ioctls - improve VRAM detection - various fixes/cleanups - workraound DPCD issues ivpu: - MMU updates - debugfs support - Support vpu4 virtio: - add sync object support atmel-hlcdc: - Support inverted pixclock polarity etnaviv: - runtime PM cleanups - hang handling fixes exynos: - use fbdev DMA helpers - fix possible NULL ptr dereference komeda: - always attach encoder omapdrm: - use fbdev DMA helpers ingenic: - kconfig regmap fixes loongson: - support display controller mediatek: - Small mtk-dpi cleanups - DisplayPort: support eDP and aux-bus - Fix coverity issues - Fix potential memory leak if vmap() fail mgag200: - minor fixes mxsfb: - support disabling overlay planes panfrost: - fix sync in IRQ handling ssd130x: - Support per-controller default resolution plus DT bindings - Reduce memory-allocation overhead - Improve intermediate buffer size computation - Fix allocation of temporary buffers - Fix pitch computation - Fix shadow plane allocation tegra: - use fbdev DMA helpers - Convert to devm_platform_ioremap_resource() - support bridge/connector - enable PM tidss: - Support TI AM625 plus DT bindings - Implement new connector model plus driver updates vkms: - improve write back support - docs fixes - support gamma LUT zynqmp-dpsub: - misc fixes" * tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm: (1327 commits) drm/gpuva_mgr: remove unused prev pointer in __drm_gpuva_sm_map() drm/tests/drm_kunit_helpers: Place correct function name in the comment header drm/nouveau: uapi: don't pass NO_PREFETCH flag implicitly drm/nouveau: uvmm: fix unset region pointer on remap drm/nouveau: sched: avoid job races between entities drm/i915: Fix HPD polling, reenabling the output poll work as needed drm: Add an HPD poll helper to reschedule the poll work drm/i915: Fix TLB-Invalidation seqno store drm/ttm/tests: Fix type conversion in ttm_pool_test drm/msm/a6xx: Bail out early if setting GPU OOB fails drm/msm/a6xx: Move LLC accessors to the common header drm/msm/a6xx: Introduce a6xx_llc_read drm/ttm/tests: Require MMU when testing drm/panel: simple: Fix Innolux G156HCE-L01 LVDS clock Revert "Revert "drm/amdgpu/display: change pipe policy for DCN 2.0"" drm/amdgpu: Add memory vendor information drm/amd: flush any delayed gfxoff on suspend entry drm/amdgpu: skip fence GFX interrupts disable/enable for S0ix drm/amdgpu: Remove gfxoff check in GFX v9.4.3 drm/amd/pm: Update pci link speed for smu v13.0.6 ... |
||
Linus Torvalds
|
daa22f5a78 |
Modules changes for v6.6-rc1
Summary of the changes worth highlighting from most interesting to boring below: * Christoph Hellwig's symbol_get() fix to Nvidia's efforts to circumvent the protection he put in place in year 2020 to prevent proprietary modules from using GPL only symbols, and also ensuring proprietary modules which export symbols grandfather their taint. That was done through year 2020 commit |
||
Linus Torvalds
|
bd6c11bc43 |
Networking changes for 6.6.
Core ---- - Increase size limits for to-be-sent skb frag allocations. This allows tun, tap devices and packet sockets to better cope with large writes operations. - Store netdevs in an xarray, to simplify iterating over netdevs. - Refactor nexthop selection for multipath routes. - Improve sched class lifetime handling. - Add backup nexthop ID support for bridge. - Implement drop reasons support in openvswitch. - Several data races annotations and fixes. - Constify the sk parameter of routing functions. - Prepend kernel version to netconsole message. Protocols --------- - Implement support for TCP probing the peer being under memory pressure. - Remove hard coded limitation on IPv6 specific info placement inside the socket struct. - Get rid of sysctl_tcp_adv_win_scale and use an auto-estimated per socket scaling factor. - Scaling-up the IPv6 expired route GC via a separated list of expiring routes. - In-kernel support for the TLS alert protocol. - Better support for UDP reuseport with connected sockets. - Add NEXT-C-SID support for SRv6 End.X behavior, reducing the SR header size. - Get rid of additional ancillary per MPTCP connection struct socket. - Implement support for BPF-based MPTCP packet schedulers. - Format MPTCP subtests selftests results in TAP. - Several new SMC 2.1 features including unique experimental options, max connections per lgr negotiation, max links per lgr negotiation. BPF --- - Multi-buffer support in AF_XDP. - Add multi uprobe BPF links for attaching multiple uprobes and usdt probes, which is significantly faster and saves extra fds. - Implement an fd-based tc BPF attach API (TCX) and BPF link support on top of it. - Add SO_REUSEPORT support for TC bpf_sk_assign. - Support new instructions from cpu v4 to simplify the generated code and feature completeness, for x86, arm64, riscv64. - Support defragmenting IPv(4|6) packets in BPF. - Teach verifier actual bounds of bpf_get_smp_processor_id() and fix perf+libbpf issue related to custom section handling. - Introduce bpf map element count and enable it for all program types. - Add a BPF hook in sys_socket() to change the protocol ID from IPPROTO_TCP to IPPROTO_MPTCP to cover migration for legacy. - Introduce bpf_me_mcache_free_rcu() and fix OOM under stress. - Add uprobe support for the bpf_get_func_ip helper. - Check skb ownership against full socket. - Support for up to 12 arguments in BPF trampoline. - Extend link_info for kprobe_multi and perf_event links. Netfilter --------- - Speed-up process exit by aborting ruleset validation if a fatal signal is pending. - Allow NLA_POLICY_MASK to be used with BE16/BE32 types. Driver API ---------- - Page pool optimizations, to improve data locality and cache usage. - Introduce ndo_hwtstamp_get() and ndo_hwtstamp_set() to avoid the need for raw ioctl() handling in drivers. - Simplify genetlink dump operations (doit/dumpit) providing them the common information already populated in struct genl_info. - Extend and use the yaml devlink specs to [re]generate the split ops. - Introduce devlink selective dumps, to allow SF filtering SF based on handle and other attributes. - Add yaml netlink spec for netlink-raw families, allow route, link and address related queries via the ynl tool. - Remove phylink legacy mode support. - Support offload LED blinking to phy. - Add devlink port function attributes for IPsec. New hardware / drivers ---------------------- - Ethernet: - Broadcom ASP 2.0 (72165) ethernet controller - MediaTek MT7988 SoC - Texas Instruments AM654 SoC - Texas Instruments IEP driver - Atheros qca8081 phy - Marvell 88Q2110 phy - NXP TJA1120 phy - WiFi: - MediaTek mt7981 support - Can: - Kvaser SmartFusion2 PCI Express devices - Allwinner T113 controllers - Texas Instruments tcan4552/4553 chips - Bluetooth: - Intel Gale Peak - Qualcomm WCN3988 and WCN7850 - NXP AW693 and IW624 - Mediatek MT2925 Drivers ------- - Ethernet NICs: - nVidia/Mellanox: - mlx5: - support UDP encapsulation in packet offload mode - IPsec packet offload support in eswitch mode - improve aRFS observability by adding new set of counters - extends MACsec offload support to cover RoCE traffic - dynamic completion EQs - mlx4: - convert to use auxiliary bus instead of custom interface logic - Intel - ice: - implement switchdev bridge offload, even for LAG interfaces - implement SRIOV support for LAG interfaces - igc: - add support for multiple in-flight TX timestamps - Broadcom: - bnxt: - use the unified RX page pool buffers for XDP and non-XDP - use the NAPI skb allocation cache - OcteonTX2: - support Round Robin scheduling HTB offload - TC flower offload support for SPI field - Freescale: - add XDP_TX feature support - AMD: - ionic: add support for PCI FLR event - sfc: - basic conntrack offload - introduce eth, ipv4 and ipv6 pedit offloads - ST Microelectronics: - stmmac: maximze PTP timestamping resolution - Virtual NICs: - Microsoft vNIC: - batch ringing RX queue doorbell on receiving packets - add page pool for RX buffers - Virtio vNIC: - add per queue interrupt coalescing support - Google vNIC: - add queue-page-list mode support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add port range matching tc-flower offload - permit enslavement to netdevices with uppers - Ethernet embedded switches: - Marvell (mv88e6xxx): - convert to phylink_pcs - Renesas: - r8A779fx: add speed change support - rzn1: enables vlan support - Ethernet PHYs: - convert mv88e6xxx to phylink_pcs - WiFi: - Qualcomm Wi-Fi 7 (ath12k): - extremely High Throughput (EHT) PHY support - RealTek (rtl8xxxu): - enable AP mode for: RTL8192FU, RTL8710BU (RTL8188GU), RTL8192EU and RTL8723BU - RealTek (rtw89): - Introduce Time Averaged SAR (TAS) support - Connector: - support for event filtering Signed-off-by: Paolo Abeni <pabeni@redhat.com> -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEEg1AjqC77wbdLX2LbKSR5jcyPE6QFAmTt1ZoSHHBhYmVuaUBy ZWRoYXQuY29tAAoJECkkeY3MjxOkgFUP/REFaYWdWUvAzmWeezyx9dqgZMfSOjWq 9QvySiA94OAOcjIYkb7wfzQ5BBAZqaBQ/f8XqWwS1EDDDEBs8sP1cxmABKwW7Hsr qFRu2sOqLzKBk223d0jIgEocfQaFpGbF71gXoTlDivBjBi5UxWm9bF0XnbYWcKgO /QEvzNosi9uNdi85Fzmv62J6YzAdidEpwGsM7X2CfejwNRmStxAEg/NwvRR0Hyiq OJCo97omEgTRaUle8nc64PDx33u4h5kQ1BkaeHEv0rbE3hftFC2YPKn/InmqSFGz 6ew2xnrGPR37LCuAiCcIIv6yR7K0eu0iYJ7jXwZxBDqxGavEPuwWGBoCP6qFiitH ZLWhIrAUrdmSbySkTOCONhJ475qFAuQoYHYpZnX/bJZUHlSsb/9lwDJYJQGpVfd1 /daqJVSb7lhaifmNO1iNd/ibCIXq9zapwtkRwA897M8GkZBTsnVvazFld1Em+Se3 Bx6DSDUVBqVQ9fpZG2IAGD6odDwOzC1lF2IoceFvK9Ff6oE0psI+A0qNLMkHxZbW Qlo7LsNe53hpoCC+yHTfXX7e/X8eNt0EnCGOQJDusZ0Nr3K7H4LKFA0i8UBUK05n 4lKnnaSQW7GQgdofLWt103OMDR9GoDxpFsm7b1X9+AEk6Fz6tq50wWYeMZETUKYP DCW8VGFOZjZM =9CsR -----END PGP SIGNATURE----- Merge tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Paolo Abeni: "Core: - Increase size limits for to-be-sent skb frag allocations. This allows tun, tap devices and packet sockets to better cope with large writes operations - Store netdevs in an xarray, to simplify iterating over netdevs - Refactor nexthop selection for multipath routes - Improve sched class lifetime handling - Add backup nexthop ID support for bridge - Implement drop reasons support in openvswitch - Several data races annotations and fixes - Constify the sk parameter of routing functions - Prepend kernel version to netconsole message Protocols: - Implement support for TCP probing the peer being under memory pressure - Remove hard coded limitation on IPv6 specific info placement inside the socket struct - Get rid of sysctl_tcp_adv_win_scale and use an auto-estimated per socket scaling factor - Scaling-up the IPv6 expired route GC via a separated list of expiring routes - In-kernel support for the TLS alert protocol - Better support for UDP reuseport with connected sockets - Add NEXT-C-SID support for SRv6 End.X behavior, reducing the SR header size - Get rid of additional ancillary per MPTCP connection struct socket - Implement support for BPF-based MPTCP packet schedulers - Format MPTCP subtests selftests results in TAP - Several new SMC 2.1 features including unique experimental options, max connections per lgr negotiation, max links per lgr negotiation BPF: - Multi-buffer support in AF_XDP - Add multi uprobe BPF links for attaching multiple uprobes and usdt probes, which is significantly faster and saves extra fds - Implement an fd-based tc BPF attach API (TCX) and BPF link support on top of it - Add SO_REUSEPORT support for TC bpf_sk_assign - Support new instructions from cpu v4 to simplify the generated code and feature completeness, for x86, arm64, riscv64 - Support defragmenting IPv(4|6) packets in BPF - Teach verifier actual bounds of bpf_get_smp_processor_id() and fix perf+libbpf issue related to custom section handling - Introduce bpf map element count and enable it for all program types - Add a BPF hook in sys_socket() to change the protocol ID from IPPROTO_TCP to IPPROTO_MPTCP to cover migration for legacy - Introduce bpf_me_mcache_free_rcu() and fix OOM under stress - Add uprobe support for the bpf_get_func_ip helper - Check skb ownership against full socket - Support for up to 12 arguments in BPF trampoline - Extend link_info for kprobe_multi and perf_event links Netfilter: - Speed-up process exit by aborting ruleset validation if a fatal signal is pending - Allow NLA_POLICY_MASK to be used with BE16/BE32 types Driver API: - Page pool optimizations, to improve data locality and cache usage - Introduce ndo_hwtstamp_get() and ndo_hwtstamp_set() to avoid the need for raw ioctl() handling in drivers - Simplify genetlink dump operations (doit/dumpit) providing them the common information already populated in struct genl_info - Extend and use the yaml devlink specs to [re]generate the split ops - Introduce devlink selective dumps, to allow SF filtering SF based on handle and other attributes - Add yaml netlink spec for netlink-raw families, allow route, link and address related queries via the ynl tool - Remove phylink legacy mode support - Support offload LED blinking to phy - Add devlink port function attributes for IPsec New hardware / drivers: - Ethernet: - Broadcom ASP 2.0 (72165) ethernet controller - MediaTek MT7988 SoC - Texas Instruments AM654 SoC - Texas Instruments IEP driver - Atheros qca8081 phy - Marvell 88Q2110 phy - NXP TJA1120 phy - WiFi: - MediaTek mt7981 support - Can: - Kvaser SmartFusion2 PCI Express devices - Allwinner T113 controllers - Texas Instruments tcan4552/4553 chips - Bluetooth: - Intel Gale Peak - Qualcomm WCN3988 and WCN7850 - NXP AW693 and IW624 - Mediatek MT2925 Drivers: - Ethernet NICs: - nVidia/Mellanox: - mlx5: - support UDP encapsulation in packet offload mode - IPsec packet offload support in eswitch mode - improve aRFS observability by adding new set of counters - extends MACsec offload support to cover RoCE traffic - dynamic completion EQs - mlx4: - convert to use auxiliary bus instead of custom interface logic - Intel - ice: - implement switchdev bridge offload, even for LAG interfaces - implement SRIOV support for LAG interfaces - igc: - add support for multiple in-flight TX timestamps - Broadcom: - bnxt: - use the unified RX page pool buffers for XDP and non-XDP - use the NAPI skb allocation cache - OcteonTX2: - support Round Robin scheduling HTB offload - TC flower offload support for SPI field - Freescale: - add XDP_TX feature support - AMD: - ionic: add support for PCI FLR event - sfc: - basic conntrack offload - introduce eth, ipv4 and ipv6 pedit offloads - ST Microelectronics: - stmmac: maximze PTP timestamping resolution - Virtual NICs: - Microsoft vNIC: - batch ringing RX queue doorbell on receiving packets - add page pool for RX buffers - Virtio vNIC: - add per queue interrupt coalescing support - Google vNIC: - add queue-page-list mode support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add port range matching tc-flower offload - permit enslavement to netdevices with uppers - Ethernet embedded switches: - Marvell (mv88e6xxx): - convert to phylink_pcs - Renesas: - r8A779fx: add speed change support - rzn1: enables vlan support - Ethernet PHYs: - convert mv88e6xxx to phylink_pcs - WiFi: - Qualcomm Wi-Fi 7 (ath12k): - extremely High Throughput (EHT) PHY support - RealTek (rtl8xxxu): - enable AP mode for: RTL8192FU, RTL8710BU (RTL8188GU), RTL8192EU and RTL8723BU - RealTek (rtw89): - Introduce Time Averaged SAR (TAS) support - Connector: - support for event filtering" * tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1806 commits) net: ethernet: mtk_wed: minor change in wed_{tx,rx}info_show net: ethernet: mtk_wed: add some more info in wed_txinfo_show handler net: stmmac: clarify difference between "interface" and "phy_interface" r8152: add vendor/device ID pair for D-Link DUB-E250 devlink: move devlink_notify_register/unregister() to dev.c devlink: move small_ops definition into netlink.c devlink: move tracepoint definitions into core.c devlink: push linecard related code into separate file devlink: push rate related code into separate file devlink: push trap related code into separate file devlink: use tracepoint_enabled() helper devlink: push region related code into separate file devlink: push param related code into separate file devlink: push resource related code into separate file devlink: push dpipe related code into separate file devlink: move and rename devlink_dpipe_send_and_alloc_skb() helper devlink: push shared buffer related code into separate file devlink: push port related code into separate file devlink: push object register/unregister notifications into separate helpers inet: fix IP_TRANSPARENT error handling ... |
||
Toke Høiland-Jørgensen
|
5a9fd0f778 |
samples/bpf: Add note to README about the XDP utilities moved to xdp-tools
To help users find the XDP utilities, add a note to the README about the new location and the conversion documentation in the commit messages. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20230824102255.1561885-8-toke@redhat.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
Toke Høiland-Jørgensen
|
91b965136d |
samples/bpf: Cleanup .gitignore
Remove no longer present XDP utilities from .gitignore. Apart from the recently removed XDP utilities this also includes the previously removed xdpsock and xsk utilities. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20230824102255.1561885-7-toke@redhat.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
Toke Høiland-Jørgensen
|
cced0699cb |
samples/bpf: Remove the xdp_sample_pkts utility
The functionality of this utility is covered by the xdpdump utility in xdp-tools. There's a slight difference in usage as the xdpdump utility's main focus is to dump packets before or after they are processed by an existing XDP program. However, xdpdump also has the --load-xdp-program switch, which will make it attach its own program if no existing program is loaded. With this, xdp_sample_pkts usage can be converted as: xdp_sample_pkts eth0 --> xdpdump --load-xdp-program eth0 To get roughly equivalent behaviour. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20230824102255.1561885-6-toke@redhat.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
Toke Høiland-Jørgensen
|
eaca21d6ee |
samples/bpf: Remove the xdp1 and xdp2 utilities
The functionality of these utilities have been incorporated into the xdp-bench utility in xdp-tools. Equivalent functionality is: xdp1 eth0 --> xdp-bench drop -p parse-ip -l load-bytes eth0 xdp2 eth0 --> xdp-bench drop -p swap-macs eth0 Note that there's a slight difference in behaviour of those examples: the swap-macs operation of xdp-bench doesn't use the bpf_xdp_load_bytes() helper to load the packet data, whereas the xdp2 utility did so unconditionally. For the parse-ip action the use of bpf_xdp_load_bytes() can be selected by the '-l load-bytes' switch, with the difference that the xdp-bench utility will perform two separate calls to the helper, one to load the ethernet header and another to load the IP header; where the xdp1 utility only performed one call always loading 60 bytes of data. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20230824102255.1561885-5-toke@redhat.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
Toke Høiland-Jørgensen
|
0e445e115f |
samples/bpf: Remove the xdp_rxq_info utility
The functionality of this utility has been incorporated into the xdp-bench utility in xdp-tools, by way of the --rxq-stats argument to the 'drop', 'pass' and 'tx' commands of xdp-bench. Some examples of how to convert xdp_rxq_info invocations into equivalent xdp-bench commands: xdp_rxq_info -d eth0 --> xdp-bench pass --rxq-stats eth0 xdp_rxq_info -d eth0 -a XDP_DROP -m --> xdp-bench drop --rxq-stats -p swap-macs eth0 Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20230824102255.1561885-4-toke@redhat.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
Toke Høiland-Jørgensen
|
91dda69b08 |
samples/bpf: Remove the xdp_redirect* utilities
These utilities have all been ported to xdp-tools as functions of the xdp-bench utility. The four different utilities in samples are incorporated as separate subcommands to xdp-bench, with most of the command line parameters left intact, except that mandatory arguments are always positional in xdp-bench. For full usage details see the --help output of each command, or the xdp-bench man page. Some examples of how to convert usage to xdp-bench are: xdp_redirect eth0 eth1 --> xdp-bench redirect eth0 eth1 xdp_redirect_map eth0 eth1 --> xdp-bench redirect-map eth0 eth1 xdp_redirect_map_multi eth0 eth1 eth2 eth3 --> xdp-bench redirect-multi eth0 eth1 eth2 eth3 xdp_redirect_cpu -d eth0 -c 0 -c 1 --> xdp-bench redirect-cpu -c 0 -c 1 eth0 xdp_redirect_cpu -d eth0 -c 0 -c 1 -r eth1 --> xdp-bench redirect-cpu -c 0 -c 1 eth0 -r redirect -D eth1 Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20230824102255.1561885-3-toke@redhat.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
Toke Høiland-Jørgensen
|
e7c9e73d08 |
samples/bpf: Remove the xdp_monitor utility
This utility has been ported as-is to xdp-tools as 'xdp-monitor'. The only difference in usage between the samples and xdp-tools versions is that the '-v' command line parameter has been changed to '-e' in the xdp-tools version for consistency with the other utilities. Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20230824102255.1561885-2-toke@redhat.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
GONG, Ruiqi
|
e332938e6f |
samples: ftrace: Replace bti assembly with hint for older compiler
When cross-building the arm64 kernel with allmodconfig using GCC 9.4,
the following error occurs on multiple files under samples/ftrace/:
/tmp/ccPC1ODs.s: Assembler messages:
/tmp/ccPC1ODs.s:8: Error: selected processor does not support `bti c'
Fix this issue by replacing `bti c` with `hint 34`, which is compatible
for the older compiler.
Link: https://lore.kernel.org/linux-trace-kernel/20230820111509.1470826-1-gongruiqi@huaweicloud.com
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Florent Revest <revest@chromium.org>
Fixes:
|
||
Daniel T. Lee
|
456d53554c |
samples/bpf: simplify spintest with kprobe.multi
With the introduction of kprobe.multi, it is now possible to attach multiple kprobes to a single BPF program without the need for multiple definitions. Additionally, this method supports wildcard-based matching, allowing for further simplification of BPF programs. In here, an asterisk (*) wildcard is used to map to all symbols relevant to spin_{lock|unlock}. Furthermore, since kprobe.multi handles symbol matching, this commit eliminates the need for the previous logic of reading the ksym table to verify the existence of symbols. Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com> Link: https://lore.kernel.org/r/20230818090119.477441-10-danieltimlee@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
Daniel T. Lee
|
8dc8055146 |
samples/bpf: refactor syscall tracing programs using BPF_KSYSCALL macro
This commit refactors the syscall tracing programs by adopting the BPF_KSYSCALL macro. This change aims to enhance the clarity and simplicity of the BPF programs by reducing the complexity of argument parsing from pt_regs. Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com> Link: https://lore.kernel.org/r/20230818090119.477441-9-danieltimlee@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
Daniel T. Lee
|
d93a7cf6ca |
samples/bpf: fix broken map lookup probe
In the commit |
||
Daniel T. Lee
|
92632115fb |
samples/bpf: fix bio latency check with tracepoint
Recently, a new tracepoint for the block layer, specifically the block_io_start/done tracepoints, was introduced in commit |
||
Daniel T. Lee
|
11430421b4 |
samples/bpf: make tracing programs to be more CO-RE centric
The existing tracing programs have been developed for a considerable period of time and, as a result, do not properly incorporate the features of the current libbpf, such as CO-RE. This is evident in frequent usage of functions like PT_REGS* and the persistence of "hack" methods using underscore-style bpf_probe_read_kernel from the past. These programs are far behind the current level of libbpf and can potentially confuse users. Therefore, this commit aims to convert the outdated BPF programs to be more CO-RE centric. Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com> Link: https://lore.kernel.org/r/20230818090119.477441-6-danieltimlee@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
Daniel T. Lee
|
02dabc247a |
samples/bpf: fix symbol mismatch by compiler optimization
Currently, multiple kprobe programs are suffering from symbol mismatch due to compiler optimization. These optimizations might induce additional suffix to the symbol name such as '.isra' or '.constprop'. # egrep ' finish_task_switch| __netif_receive_skb_core' /proc/kallsyms ffffffff81135e50 t finish_task_switch.isra.0 ffffffff81dd36d0 t __netif_receive_skb_core.constprop.0 ffffffff8205cc0e t finish_task_switch.isra.0.cold ffffffff820b1aba t __netif_receive_skb_core.constprop.0.cold To avoid this, this commit replaces the original kprobe section to kprobe.multi in order to match symbol with wildcard characters. Here, asterisk is used for avoiding symbol mismatch. Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com> Link: https://lore.kernel.org/r/20230818090119.477441-5-danieltimlee@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |