Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Cross merge.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next into net-accept-more

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1557 commits)
net: qede: use extack in qe

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next into net-accept-more

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1557 commits)
net: qede: use extack in qede_parse_actions()
net: qede: propagate extack through qede_flow_spec_validate()
net: qede: use faked extack in qede_flow_spec_to_rule()
net: qede: use extack in qede_parse_flow_attr()
net: qede: add extack in qede_add_tc_flower_fltr()
net: qede: use extack in qede_flow_parse_udp_v4()
net: qede: use extack in qede_flow_parse_udp_v6()
net: qede: use extack in qede_flow_parse_tcp_v4()
net: qede: use extack in qede_flow_parse_tcp_v6()
net: qede: use extack in qede_flow_parse_v4_common()
net: qede: use extack in qede_flow_parse_v6_common()
net: qede: use extack in qede_set_v4_tuple_to_profile()
net: qede: use extack in qede_set_v6_tuple_to_profile()
net: qede: use extack in qede_flow_parse_ports()
net: usb: smsc95xx: stop lying about skb->truesize
net: dsa: microchip: Fix spellig mistake "configur" -> "configure"
af_unix: Add dead flag to struct scm_fp_list.
net: ethernet: adi: adin1110: Replace linux/gpio.h by proper one
octeontx2-pf: Reuse Transmit queue/Send queue index of HTB class
gve: Use ethtool_sprintf/puts() to fill stats strings
...

show more ...

Merge tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Core & protocols:

- Complete rework of garbage collectio

Merge tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Core & protocols:

- Complete rework of garbage collection of AF_UNIX sockets.

AF_UNIX is prone to forming reference count cycles due to fd
passing functionality. New method based on Tarjan's Strongly
Connected Components algorithm should be both faster and remove a
lot of workarounds we accumulated over the years.

- Add TCP fraglist GRO support, allowing chaining multiple TCP
packets and forwarding them together. Useful for small switches /
routers which lack basic checksum offload in some scenarios (e.g.
PPPoE).

- Support using SMP threads for handling packet backlog i.e. packet
processing from software interfaces and old drivers which don't use
NAPI. This helps move the processing out of the softirq jumble.

- Continue work of converting from rtnl lock to RCU protection.

Don't require rtnl lock when reading: IPv6 routing FIB, IPv6
address labels, netdev threaded NAPI sysfs files, bonding driver's
sysfs files, MPLS devconf, IPv4 FIB rules, netns IDs, tcp metrics,
TC Qdiscs, neighbor entries, ARP entries via ioctl(SIOCGARP), a lot
of the link information available via rtnetlink.

- Small optimizations from Eric to UDP wake up handling, memory
accounting, RPS/RFS implementation, TCP packet sizing etc.

- Allow direct page recycling in the bulk API used by XDP, for +2%
PPS.

- Support peek with an offset on TCP sockets.

- Add MPTCP APIs for querying last time packets were received/sent/acked
and whether MPTCP "upgrade" succeeded on a TCP socket.

- Add intra-node communication shortcut to improve SMC performance.

- Add IPv6 (and IPv{4,6}-over-IPv{4,6}) support to the GTP protocol
driver.

- Add HSR-SAN (RedBOX) mode of operation to the HSR protocol driver.

- Add reset reasons for tracing what caused a TCP reset to be sent.

- Introduce direction attribute for xfrm (IPSec) states. State can be
used either for input or output packet processing.

Things we sprinkled into general kernel code:

- Add bitmap_{read,write}(), bitmap_size(), expose BYTES_TO_BITS().

This required touch-ups and renaming of a few existing users.

- Add Endian-dependent __counted_by_{le,be} annotations.

- Make building selftests "quieter" by printing summaries like
"CC object.o" rather than full commands with all the arguments.

Netfilter:

- Use GFP_KERNEL to clone elements, to deal better with OOM
situations and avoid failures in the .commit step.

BPF:

- Add eBPF JIT for ARCv2 CPUs.

- Support attaching kprobe BPF programs through kprobe_multi link in
a session mode, meaning, a BPF program is attached to both function
entry and return, the entry program can decide if the return
program gets executed and the entry program can share u64 cookie
value with return program. "Session mode" is a common use-case for
tetragon and bpftrace.

- Add the ability to specify and retrieve BPF cookie for raw
tracepoint programs in order to ease migration from classic to raw
tracepoints.

- Add an internal-only BPF per-CPU instruction for resolving per-CPU
memory addresses and implement support in x86, ARM64 and RISC-V
JITs. This allows inlining functions which need to access per-CPU
state.

- Optimize x86 BPF JIT's emit_mov_imm64, and add support for various
atomics in bpf_arena which can be JITed as a single x86
instruction. Support BPF arena on ARM64.

- Add a new bpf_wq API for deferring events and refactor
process-context bpf_timer code to keep common code where possible.

- Harden the BPF verifier's and/or/xor value tracking.

- Introduce crypto kfuncs to let BPF programs call kernel crypto
APIs.

- Support bpf_tail_call_static() helper for BPF programs with GCC 13.

- Add bpf_preempt_{disable,enable}() kfuncs in order to allow a BPF
program to have code sections where preemption is disabled.

Driver API:

- Skip software TC processing completely if all installed rules are
marked as HW-only, instead of checking the HW-only flag rule by
rule.

- Add support for configuring PoE (Power over Ethernet), similar to
the already existing support for PoDL (Power over Data Line)
config.

- Initial bits of a queue control API, for now allowing a single
queue to be reset without disturbing packet flow to other queues.

- Common (ethtool) statistics for hardware timestamping.

Tests and tooling:

- Remove the need to create a config file to run the net forwarding
tests so that a naive "make run_tests" can exercise them.

- Define a method of writing tests which require an external endpoint
to communicate with (to send/receive data towards the test
machine). Add a few such tests.

- Create a shared code library for writing Python tests. Expose the
YAML Netlink library from tools/ to the tests for easy Netlink
access.

- Move netfilter tests under net/, extend them, separate performance
tests from correctness tests, and iron out issues found by running
them "on every commit".

- Refactor BPF selftests to use common network helpers.

- Further work filling in YAML definitions of Netlink messages for:
nftables, team driver, bonding interfaces, vlan interfaces, VF
info, TC u32 mark, TC police action.

- Teach Python YAML Netlink to decode attribute policies.

- Extend the definition of the "indexed array" construct in the specs
to cover arrays of scalars rather than just nests.

- Add hyperlinks between definitions in generated Netlink docs.

Drivers:

- Make sure unsupported flower control flags are rejected by drivers,
and make more drivers report errors directly to the application
rather than dmesg (large number of driver changes from Asbjørn
Sloth Tønnesen).

- Ethernet high-speed NICs:
- Broadcom (bnxt):
- support multiple RSS contexts and steering traffic to them
- support XDP metadata
- make page pool allocations more NUMA aware
- Intel (100G, ice, idpf):
- extract datapath code common among Intel drivers into a library
- use fewer resources in switchdev by sharing queues with the PF
- add PFCP filter support
- add Ethernet filter support
- use a spinlock instead of HW lock in PTP clock ops
- support 5 layer Tx scheduler topology
- nVidia/Mellanox:
- 800G link modes and 100G SerDes speeds
- per-queue IRQ coalescing configuration
- Marvell Octeon:
- support offloading TC packet mark action

- Ethernet NICs consumer, embedded and virtual:
- stop lying about skb->truesize in USB Ethernet drivers, it
messes up TCP memory calculations
- Google cloud vNIC:
- support changing ring size via ethtool
- support ring reset using the queue control API
- VirtIO net:
- expose flow hash from RSS to XDP
- per-queue statistics
- add selftests
- Synopsys (stmmac):
- support controllers which require an RX clock signal from the
MII bus to perform their hardware initialization
- TI:
- icssg_prueth: support ICSSG-based Ethernet on AM65x SR1.0 devices
- icssg_prueth: add SW TX / RX Coalescing based on hrtimers
- cpsw: minimal XDP support
- Renesas (ravb):
- support describing the MDIO bus
- Realtek (r8169):
- add support for RTL8168M
- Microchip Sparx5:
- matchall and flower actions mirred and redirect

- Ethernet switches:
- nVidia/Mellanox:
- improve events processing performance
- Marvell:
- add support for MV88E6250 family internal PHYs
- Microchip:
- add DCB and DSCP mapping support for KSZ switches
- vsc73xx: convert to PHYLINK
- Realtek:
- rtl8226b/rtl8221b: add C45 instances and SerDes switching

- Many driver changes related to PHYLIB and PHYLINK deprecated API
cleanup

- Ethernet PHYs:
- Add a new driver for Airoha EN8811H 2.5 Gigabit PHY.
- micrel: lan8814: add support for PPS out and external timestamp trigger

- WiFi:
- Disable Wireless Extensions (WEXT) in all Wi-Fi 7 devices
drivers. Modern devices can only be configured using nl80211.
- mac80211/cfg80211
- handle color change per link for WiFi 7 Multi-Link Operation
- Intel (iwlwifi):
- don't support puncturing in 5 GHz
- support monitor mode on passive channels
- BZ-W device support
- P2P with HE/EHT support
- re-add support for firmware API 90
- provide channel survey information for Automatic Channel Selection
- MediaTek (mt76):
- mt7921 LED control
- mt7925 EHT radiotap support
- mt7920e PCI support
- Qualcomm (ath11k):
- P2P support for QCA6390, WCN6855 and QCA2066
- support hibernation
- ieee80211-freq-limit Device Tree property support
- Qualcomm (ath12k):
- refactoring in preparation of multi-link support
- suspend and hibernation support
- ACPI support
- debugfs support, including dfs_simulate_radar support
- RealTek:
- rtw88: RTL8723CS SDIO device support
- rtw89: RTL8922AE Wi-Fi 7 PCI device support
- rtw89: complete features of new WiFi 7 chip 8922AE including
BT-coexistence and Wake-on-WLAN
- rtw89: use BIOS ACPI settings to set TX power and channels
- rtl8xxxu: enable Management Frame Protection (MFP) support

- Bluetooth:
- support for Intel BlazarI and Filmore Peak2 (BE201)
- support for MediaTek MT7921S SDIO
- initial support for Intel PCIe BT driver
- remove HCI_AMP support"

* tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1827 commits)
selftests: netfilter: fix packetdrill conntrack testcase
net: gro: fix napi_gro_cb zeroed alignment
Bluetooth: btintel_pcie: Refactor and code cleanup
Bluetooth: btintel_pcie: Fix warning reported by sparse
Bluetooth: hci_core: Fix not handling hdev->le_num_of_adv_sets=1
Bluetooth: btintel: Fix compiler warning for multi_v7_defconfig config
Bluetooth: btintel_pcie: Fix compiler warnings
Bluetooth: btintel_pcie: Add *setup* function to download firmware
Bluetooth: btintel_pcie: Add support for PCIe transport
Bluetooth: btintel: Export few static functions
Bluetooth: HCI: Remove HCI_AMP support
Bluetooth: L2CAP: Fix div-by-zero in l2cap_le_flowctl_init()
Bluetooth: qca: Fix error code in qca_read_fw_build_info()
Bluetooth: hci_conn: Use __counted_by() and avoid -Wfamnae warning
Bluetooth: btintel: Add support for Filmore Peak2 (BE201)
Bluetooth: btintel: Add support for BlazarI
LE Create Connection command timeout increased to 20 secs
dt-bindings: net: bluetooth: Add MediaTek MT7921S SDIO Bluetooth
Bluetooth: compute LE flow credits based on recvbuf space
Bluetooth: hci_sync: Use cmd->num_cis instead of magic number
...

show more ...

Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2024-05-13

We've added 119 non-merge commit

Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2024-05-13

We've added 119 non-merge commits during the last 14 day(s) which contain
a total of 134 files changed, 9462 insertions(+), 4742 deletions(-).

The main changes are:

1) Add BPF JIT support for 32-bit ARCv2 processors, from Shahab Vahedi.

2) Add BPF range computation improvements to the verifier in particular
around XOR and OR operators, refactoring of checks for range computation
and relaxing MUL range computation so that src_reg can also be an unknown
scalar, from Cupertino Miranda.

3) Add support to attach kprobe BPF programs through kprobe_multi link in
a session mode, meaning, a BPF program is attached to both function entry
and return, the entry program can decide if the return program gets
executed and the entry program can share u64 cookie value with return
program. Session mode is a common use-case for tetragon and bpftrace,
from Jiri Olsa.

4) Fix a potential overflow in libbpf's ring__consume_n() and improve libbpf
as well as BPF selftest's struct_ops handling, from Andrii Nakryiko.

5) Improvements to BPF selftests in context of BPF gcc backend,
from Jose E. Marchesi & David Faust.

6) Migrate remaining BPF selftest tests from test_sock_addr.c to prog_test-
-style in order to retire the old test, run it in BPF CI and additionally
expand test coverage, from Jordan Rife.

7) Big batch for BPF selftest refactoring in order to remove duplicate code
around common network helpers, from Geliang Tang.

8) Another batch of improvements to BPF selftests to retire obsolete
bpf_tcp_helpers.h as everything is available vmlinux.h,
from Martin KaFai Lau.

9) Fix BPF map tear-down to not walk the map twice on free when both timer
and wq is used, from Benjamin Tissoires.

10) Fix BPF verifier assumptions about socket->sk that it can be non-NULL,
from Alexei Starovoitov.

11) Change BTF build scripts to using --btf_features for pahole v1.26+,
from Alan Maguire.

12) Small improvements to BPF reusing struct_size() and krealloc_array(),
from Andy Shevchenko.

13) Fix s390 JIT to emit a barrier for BPF_FETCH instructions,
from Ilya Leoshkevich.

14) Extend TCP ->cong_control() callback in order to feed in ack and
flag parameters and allow write-access to tp->snd_cwnd_stamp
from BPF program, from Miao Xu.

15) Add support for internal-only per-CPU instructions to inline
bpf_get_smp_processor_id() helper call for arm64 and riscv64 BPF JITs,
from Puranjay Mohan.

16) Follow-up to remove the redundant ethtool.h from tooling infrastructure,
from Tushar Vyavahare.

17) Extend libbpf to support "module:<function>" syntax for tracing
programs, from Viktor Malik.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (119 commits)
bpf: make list_for_each_entry portable
bpf: ignore expected GCC warning in test_global_func10.c
bpf: disable strict aliasing in test_global_func9.c
selftests/bpf: Free strdup memory in xdp_hw_metadata
selftests/bpf: Fix a few tests for GCC related warnings.
bpf: avoid gcc overflow warning in test_xdp_vlan.c
tools: remove redundant ethtool.h from tooling infra
selftests/bpf: Expand ATTACH_REJECT tests
selftests/bpf: Expand getsockname and getpeername tests
sefltests/bpf: Expand sockaddr hook deny tests
selftests/bpf: Expand sockaddr program return value tests
selftests/bpf: Retire test_sock_addr.(c|sh)
selftests/bpf: Remove redundant sendmsg test cases
selftests/bpf: Migrate ATTACH_REJECT test cases
selftests/bpf: Migrate expected_attach_type tests
selftests/bpf: Migrate wildcard destination rewrite test
selftests/bpf: Migrate sendmsg6 v4 mapped address tests
selftests/bpf: Migrate sendmsg deny test cases
selftests/bpf: Migrate WILDCARD_IP test
selftests/bpf: Handle SYSCALL_EPERM and SYSCALL_ENOTSUPP test cases
...
====================

Link: https://lore.kernel.org/r/20240513134114.17575-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

show more ...

Merge branch 'bpf-introduce-kprobe_multi-session-attach'

Jiri Olsa says:

====================
bpf: Introduce kprobe_multi session attach

hi,
adding support to attach kprobe program through kprobe_

Merge branch 'bpf-introduce-kprobe_multi-session-attach'

Jiri Olsa says:

====================
bpf: Introduce kprobe_multi session attach

hi,
adding support to attach kprobe program through kprobe_multi link
in a session mode, which means:
- program is attached to both function entry and return
- entry program can decided if the return program gets executed
- entry program can share u64 cookie value with return program

The initial RFC for this was posted in [0] and later discussed more
and which ended up with the session idea [1]

Having entry together with return probe for given function is common
use case for tetragon, bpftrace and most likely for others.

At the moment if we want both entry and return probe to execute bpf
program we need to create two (entry and return probe) links. The link
for return probe creates extra entry probe to setup the return probe.
The extra entry probe execution could be omitted if we had a way to
use just single link for both entry and exit probe.

In addition the possibility to control the return program execution
and sharing data within entry and return probe allows for other use
cases.

v2 changes:
- renamed BPF_TRACE_KPROBE_MULTI_SESSION to BPF_TRACE_KPROBE_SESSION
[Andrii]
- use arrays for results in selftest [Andrii]
- various small selftests and libbpf changes [Andrii]
- moved the verifier cookie setup earlier in check_kfunc_call [Andrii]
- added acks

Also available at:
https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
bpf/session_data

thanks,
jirka

[0] https://lore.kernel.org/bpf/20240207153550.856536-1-jolsa@kernel.org/
[1] https://lore.kernel.org/bpf/20240228090242.4040210-1-jolsa@kernel.org/
---
====================

Link: https://lore.kernel.org/r/20240430112830.1184228-1-jolsa@kernel.org
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>

show more ...

bpf: Add support for kprobe session attach

Adding support to attach bpf program for entry and return probe
of the same function. This is common use case which at the moment
requires to create two kp

bpf: Add support for kprobe session attach

Adding support to attach bpf program for entry and return probe
of the same function. This is common use case which at the moment
requires to create two kprobe multi links.

Adding new BPF_TRACE_KPROBE_SESSION attach type that instructs
kernel to attach single link program to both entry and exit probe.

It's possible to control execution of the bpf program on return
probe simply by returning zero or non zero from the entry bpf
program execution to execute or not the bpf program on return
probe respectively.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240430112830.1184228-2-jolsa@kernel.org

show more ...

Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2024-04-29

We've added 147 non-merge commit

Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2024-04-29

We've added 147 non-merge commits during the last 32 day(s) which contain
a total of 158 files changed, 9400 insertions(+), 2213 deletions(-).

The main changes are:

1) Add an internal-only BPF per-CPU instruction for resolving per-CPU
memory addresses and implement support in x86 BPF JIT. This allows
inlining per-CPU array and hashmap lookups
and the bpf_get_smp_processor_id() helper, from Andrii Nakryiko.

2) Add BPF link support for sk_msg and sk_skb programs, from Yonghong Song.

3) Optimize x86 BPF JIT's emit_mov_imm64, and add support for various
atomics in bpf_arena which can be JITed as a single x86 instruction,
from Alexei Starovoitov.

4) Add support for passing mark with bpf_fib_lookup helper,
from Anton Protopopov.

5) Add a new bpf_wq API for deferring events and refactor sleepable
bpf_timer code to keep common code where possible,
from Benjamin Tissoires.

6) Fix BPF_PROG_TEST_RUN infra with regards to bpf_dummy_struct_ops programs
to check when NULL is passed for non-NULLable parameters,
from Eduard Zingerman.

7) Harden the BPF verifier's and/or/xor value tracking,
from Harishankar Vishwanathan.

8) Introduce crypto kfuncs to make BPF programs able to utilize the kernel
crypto subsystem, from Vadim Fedorenko.

9) Various improvements to the BPF instruction set standardization doc,
from Dave Thaler.

10) Extend libbpf APIs to partially consume items from the BPF ringbuffer,
from Andrea Righi.

11) Bigger batch of BPF selftests refactoring to use common network helpers
and to drop duplicate code, from Geliang Tang.

12) Support bpf_tail_call_static() helper for BPF programs with GCC 13,
from Jose E. Marchesi.

13) Add bpf_preempt_{disable,enable}() kfuncs in order to allow a BPF
program to have code sections where preemption is disabled,
from Kumar Kartikeya Dwivedi.

14) Allow invoking BPF kfuncs from BPF_PROG_TYPE_SYSCALL programs,
from David Vernet.

15) Extend the BPF verifier to allow different input maps for a given
bpf_for_each_map_elem() helper call in a BPF program, from Philo Lu.

16) Add support for PROBE_MEM32 and bpf_addr_space_cast instructions
for riscv64 and arm64 JITs to enable BPF Arena, from Puranjay Mohan.

17) Shut up a false-positive KMSAN splat in interpreter mode by unpoison
the stack memory, from Martin KaFai Lau.

18) Improve xsk selftest coverage with new tests on maximum and minimum
hardware ring size configurations, from Tushar Vyavahare.

19) Various ReST man pages fixes as well as documentation and bash completion
improvements for bpftool, from Rameez Rehman & Quentin Monnet.

20) Fix libbpf with regards to dumping subsequent char arrays,
from Quentin Deslandes.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (147 commits)
bpf, docs: Clarify PC use in instruction-set.rst
bpf_helpers.h: Define bpf_tail_call_static when building with GCC
bpf, docs: Add introduction for use in the ISA Internet Draft
selftests/bpf: extend BPF_SOCK_OPS_RTT_CB test for srtt and mrtt_us
bpf: add mrtt and srtt as BPF_SOCK_OPS_RTT_CB args
selftests/bpf: dummy_st_ops should reject 0 for non-nullable params
bpf: check bpf_dummy_struct_ops program params for test runs
selftests/bpf: do not pass NULL for non-nullable params in dummy_st_ops
selftests/bpf: adjust dummy_st_ops_success to detect additional error
bpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable
selftests/bpf: Add ring_buffer__consume_n test.
bpf: Add bpf_guard_preempt() convenience macro
selftests: bpf: crypto: add benchmark for crypto functions
selftests: bpf: crypto skcipher algo selftests
bpf: crypto: add skcipher to bpf crypto
bpf: make common crypto API for TC/XDP programs
bpf: update the comment for BTF_FIELDS_MAX
selftests/bpf: Fix wq test.
selftests/bpf: Use make_sockaddr in test_sock_addr
selftests/bpf: Use connect_to_addr in test_sock_addr
...
====================

Link: https://lore.kernel.org/r/20240429131657.19423-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

show more ...

Merge branch 'bpf: add mrtt and srtt as ctx->args for BPF_SOCK_OPS_RTT_CB'

Philo Lu says:

====================
These provides more information about tcp RTT estimation. The selftest for
BPF_SOCK_OP

Merge branch 'bpf: add mrtt and srtt as ctx->args for BPF_SOCK_OPS_RTT_CB'

Philo Lu says:

====================
These provides more information about tcp RTT estimation. The selftest for
BPF_SOCK_OPS_RTT_CB is extended for the added args.

changelogs
-> v1:
- extend rtt selftest for added args (suggested by Stanislav)
====================

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>

show more ...

bpf: add mrtt and srtt as BPF_SOCK_OPS_RTT_CB args

Two important arguments in RTT estimation, mrtt and srtt, are passed to
tcp_bpf_rtt(), so that bpf programs get more information about RTT
computat

bpf: add mrtt and srtt as BPF_SOCK_OPS_RTT_CB args

Two important arguments in RTT estimation, mrtt and srtt, are passed to
tcp_bpf_rtt(), so that bpf programs get more information about RTT
computation in BPF_SOCK_OPS_RTT_CB.

The difference between bpf_sock_ops->srtt_us and the srtt here is: the
former is an old rtt before update, while srtt passed by tcp_bpf_rtt()
is that after update.

Signed-off-by: Philo Lu <lulie@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240425161724.73707-2-lulie@linux.alibaba.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>

show more ...

Merge branch 'introduce-bpf_wq'

Benjamin Tissoires says:

====================
Introduce bpf_wq

This is a followup of sleepable bpf_timer[0].

When discussing sleepable bpf_timer, it was thought th

Merge branch 'introduce-bpf_wq'

Benjamin Tissoires says:

====================
Introduce bpf_wq

This is a followup of sleepable bpf_timer[0].

When discussing sleepable bpf_timer, it was thought that we should give
a try to bpf_wq, as the 2 APIs are similar but distinct enough to
justify a new one.

So here it is.

I tried to keep as much as possible common code in kernel/bpf/helpers.c
but I couldn't get away with code duplication in kernel/bpf/verifier.c.

This series introduces a basic bpf_wq support:
- creation is supported
- assignment is supported
- running a simple bpf_wq is also supported.

We will probably need to extend the API further with:
- a full delayed_work API (can be piggy backed on top with a correct
flag)
- bpf_wq_cancel() <- apparently not, this is shooting ourself in the
foot
- bpf_wq_cancel_sync() (for sleepable programs)
- documentation
---

For reference, the use cases I have in mind:

---

Basically, I need to be able to defer a HID-BPF program for the
following reasons (from the aforementioned patch):
1. defer an event:
Sometimes we receive an out of proximity event, but the device can not
be trusted enough, and we need to ensure that we won't receive another
one in the following n milliseconds. So we need to wait those n
milliseconds, and eventually re-inject that event in the stack.

2. inject new events in reaction to one given event:
We might want to transform one given event into several. This is the
case for macro keys where a single key press is supposed to send
a sequence of key presses. But this could also be used to patch a
faulty behavior, if a device forgets to send a release event.

3. communicate with the device in reaction to one event:
We might want to communicate back to the device after a given event.
For example a device might send us an event saying that it came back
from sleeping state and needs to be re-initialized.

Currently we can achieve that by keeping a userspace program around,
raise a bpf event, and let that userspace program inject the events and
commands.
However, we are just keeping that program alive as a daemon for just
scheduling commands. There is no logic in it, so it doesn't really justify
an actual userspace wakeup. So a kernel workqueue seems simpler to handle.

bpf_timers are currently running in a soft IRQ context, this patch
series implements a sleppable context for them.

Cheers,
Benjamin

[0] https://lore.kernel.org/all/20240408-hid-bpf-sleepable-v6-0-0499ddd91b94@kernel.org/

Changes in v2:
- took previous review into account
- mainly dropped BPF_F_WQ_SLEEPABLE
- Link to v1: https://lore.kernel.org/r/20240416-bpf_wq-v1-0-c9e66092f842@kernel.org

====================

Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-0-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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bpf: add support for bpf_wq user type

Mostly a copy/paste from the bpf_timer API, without the initialization
and free, as they will be done in a separate patch.

Signed-off-by: Benjamin Tissoires <b

bpf: add support for bpf_wq user type

Mostly a copy/paste from the bpf_timer API, without the initialization
and free, as they will be done in a separate patch.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-5-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Merge drm/drm-next into drm-xe-next

Backmerging drm-next in order to get up-to-date and in particular
to access commit 9ca5facd0400f610f3f7f71aeb7fc0b949a48c67.

Signed-off-by: Thomas Hellström <tho

Merge drm/drm-next into drm-xe-next

Backmerging drm-next in order to get up-to-date and in particular
to access commit 9ca5facd0400f610f3f7f71aeb7fc0b949a48c67.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

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Merge branch 'bpf-add-bpf_link-support-for-sk_msg-and-sk_skb-progs'

Yonghong Song says:

====================
bpf: Add bpf_link support for sk_msg and sk_skb progs

One of our internal services star

Merge branch 'bpf-add-bpf_link-support-for-sk_msg-and-sk_skb-progs'

Yonghong Song says:

====================
bpf: Add bpf_link support for sk_msg and sk_skb progs

One of our internal services started to use sk_msg program and currently
it used existing prog attach/detach2 as demonstrated in selftests.
But attach/detach of all other bpf programs are based on bpf_link.
Consistent attach/detach APIs for all programs will make things easy to
undersand and less error prone. So this patch added bpf_link
support for BPF_PROG_TYPE_SK_MSG. Based on comments from
previous RFC patch, I added BPF_PROG_TYPE_SK_SKB support as well
as both program types have similar treatment w.r.t. bpf_link
handling.

For the patch series, patch 1 added kernel support. Patch 2
added libbpf support. Patch 3 added bpftool support and
patches 4/5 added some new tests.

Changelogs:
v6 -> v7:
- fix an missing-mutex_unlock error.
v5 -> v6:
- resolve libbpf conflict due to recent upstream change.
- add a bpf_link_create() test.
- some code refactoring for better code quality.
v4 -> v5:
- increase scope of mutex protection in link_release.
- remove previous-leftover entry in libbpf.map.
- make some code changes for better understanding.
v3 -> v4:
- use a single mutex lock to protect both attach/detach/update
and release/fill_info/show_fdinfo.
- simplify code for sock_map_link_lookup().
- fix a few bugs.
- add more tests.
v2 -> v3:
- consolidate link types of sk_msg and sk_skb to
a single link type BPF_PROG_TYPE_SOCKMAP.
- fix bpf_link lifecycle issue. in v2, after bpf_link
is attached, a subsequent prog_attach could change
that bpf_link. this patch makes bpf_link having
correct behavior such that it won't go away facing
other prog/link attach for the same map and the same
attach type.
====================

Link: https://lore.kernel.org/r/20240410043522.3736912-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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bpf: Add bpf_link support for sk_msg and sk_skb progs

Add bpf_link support for sk_msg and sk_skb programs. We have an
internal request to support bpf_link for sk_msg programs so user
space can have

bpf: Add bpf_link support for sk_msg and sk_skb progs

Add bpf_link support for sk_msg and sk_skb programs. We have an
internal request to support bpf_link for sk_msg programs so user
space can have a uniform handling with bpf_link based libbpf
APIs. Using bpf_link based libbpf API also has a benefit which
makes system robust by decoupling prog life cycle and
attachment life cycle.

Reviewed-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20240410043527.3737160-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Merge tag 'phy_dp_modes_6.10' into msm-next-lumag

Merge DisplayPort subnode API in order to allow DisplayPort driver to
configure the PHYs either to the DP or eDP mode, depending on hardware
configu

Merge tag 'phy_dp_modes_6.10' into msm-next-lumag

Merge DisplayPort subnode API in order to allow DisplayPort driver to
configure the PHYs either to the DP or eDP mode, depending on hardware
configuration.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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bpf: Pack struct bpf_fib_lookup

The struct bpf_fib_lookup is supposed to be of size 64. A recent commit
59b418c7063d ("bpf: Add a check for struct bpf_fib_lookup size") added
a static assertion to c

bpf: Pack struct bpf_fib_lookup

The struct bpf_fib_lookup is supposed to be of size 64. A recent commit
59b418c7063d ("bpf: Add a check for struct bpf_fib_lookup size") added
a static assertion to check this property so that future changes to the
structure will not accidentally break this assumption.

As it immediately turned out, on some 32-bit arm systems, when AEABI=n,
the total size of the structure was equal to 68, see [1]. This happened
because the bpf_fib_lookup structure contains a union of two 16-bit
fields:

union {
__u16 tot_len;
__u16 mtu_result;
};

which was supposed to compile to a 16-bit-aligned 16-bit field. On the
aforementioned setups it was instead both aligned and padded to 32-bits.

Declare this inner union as __attribute__((packed, aligned(2))) such
that it always is of size 2 and is aligned to 16 bits.

[1] https://lore.kernel.org/all/CA+G9fYtsoP51f-oP_Sp5MOq-Ffv8La2RztNpwvE6+R1VtFiLrw@mail.gmail.com/#t

Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Fixes: e1850ea9bd9e ("bpf: bpf_fib_lookup return MTU value as output when looked up")
Signed-off-by: Anton Protopopov <aspsk@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20240403123303.1452184-1-aspsk@isovalent.com

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bpf: Fix typo in uapi doc comments

In a few places in the bpf uapi headers, EOPNOTSUPP is missing a "P" in
the doc comments. This adds the missing "P".

Signed-off-by: David Lechner <dlechner@baylib

bpf: Fix typo in uapi doc comments

In a few places in the bpf uapi headers, EOPNOTSUPP is missing a "P" in
the doc comments. This adds the missing "P".

Signed-off-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20240329152900.398260-2-dlechner@baylibre.com

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Merge drm/drm-next into drm-intel-next

Catching up on 6.9-rc2

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-misc-next

Backmerging to get v6.9-rc2 changes into drm-misc-next.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

bpf: Add support for passing mark with bpf_fib_lookup

Extend the bpf_fib_lookup() helper by making it to utilize mark if
the BPF_FIB_LOOKUP_MARK flag is set. In order to pass the mark the
four bytes

bpf: Add support for passing mark with bpf_fib_lookup

Extend the bpf_fib_lookup() helper by making it to utilize mark if
the BPF_FIB_LOOKUP_MARK flag is set. In order to pass the mark the
four bytes of struct bpf_fib_lookup are used, shared with the
output-only smac/dmac fields.

Signed-off-by: Anton Protopopov <aspsk@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: David Ahern <dsahern@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20240326101742.17421-2-aspsk@isovalent.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2024-03-25

We've added 38 non-merge commits

Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2024-03-25

We've added 38 non-merge commits during the last 13 day(s) which contain
a total of 50 files changed, 867 insertions(+), 274 deletions(-).

The main changes are:

1) Add the ability to specify and retrieve BPF cookie also for raw
tracepoint programs in order to ease migration from classic to raw
tracepoints, from Andrii Nakryiko.

2) Allow the use of bpf_get_{ns_,}current_pid_tgid() helper for all
program types and add additional BPF selftests, from Yonghong Song.

3) Several improvements to bpftool and its build, for example, enabling
libbpf logs when loading pid_iter in debug mode, from Quentin Monnet.

4) Check the return code of all BPF-related set_memory_*() functions during
load and bail out in case they fail, from Christophe Leroy.

5) Avoid a goto in regs_refine_cond_op() such that the verifier can
be better integrated into Agni tool which doesn't support backedges
yet, from Harishankar Vishwanathan.

6) Add a small BPF trie perf improvement by always inlining
longest_prefix_match, from Jesper Dangaard Brouer.

7) Small BPF selftest refactor in bpf_tcp_ca.c to utilize start_server()
helper instead of open-coding it, from Geliang Tang.

8) Improve test_tc_tunnel.sh BPF selftest to prevent client connect
before the server bind, from Alessandro Carminati.

9) Fix BPF selftest benchmark for older glibc and use syscall(SYS_gettid)
instead of gettid(), from Alan Maguire.

10) Implement a backward-compatible method for struct_ops types with
additional fields which are not present in older kernels,
from Kui-Feng Lee.

11) Add a small helper to check if an instruction is addr_space_cast
from as(0) to as(1) and utilize it in x86-64 JIT, from Puranjay Mohan.

12) Small cleanup to remove unnecessary error check in
bpf_struct_ops_map_update_elem, from Martin KaFai Lau.

13) Improvements to libbpf fd validity checks for BPF map/programs,
from Mykyta Yatsenko.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (38 commits)
selftests/bpf: Fix flaky test btf_map_in_map/lookup_update
bpf: implement insn_is_cast_user() helper for JITs
bpf: Avoid get_kernel_nofault() to fetch kprobe entry IP
selftests/bpf: Use start_server in bpf_tcp_ca
bpf: Sync uapi bpf.h to tools directory
libbpf: Add new sec_def "sk_skb/verdict"
selftests/bpf: Mark uprobe trigger functions with nocf_check attribute
selftests/bpf: Use syscall(SYS_gettid) instead of gettid() wrapper in bench
bpf-next: Avoid goto in regs_refine_cond_op()
bpftool: Clean up HOST_CFLAGS, HOST_LDFLAGS for bootstrap bpftool
selftests/bpf: scale benchmark counting by using per-CPU counters
bpftool: Remove unnecessary source files from bootstrap version
bpftool: Enable libbpf logs when loading pid_iter in debug mode
selftests/bpf: add raw_tp/tp_btf BPF cookie subtests
libbpf: add support for BPF cookie for raw_tp/tp_btf programs
bpf: support BPF cookie in raw tracepoint (raw_tp, tp_btf) programs
bpf: pass whole link instead of prog when triggering raw tracepoint
bpf: flatten bpf_probe_register call chain
selftests/bpf: Prevent client connect before server bind in test_tc_tunnel.sh
selftests/bpf: Add a sk_msg prog bpf_get_ns_current_pid_tgid() test
...
====================

Link: https://lore.kernel.org/r/20240325233940.7154-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Merge branch 'topic/sound-devel-6.10' into for-next

Merge branch 'bpf-raw-tracepoint-support-for-bpf-cookie'

Andrii Nakryiko says:

====================
BPF raw tracepoint support for BPF cookie

Add ability to specify and retrieve BPF cookie for raw

Merge branch 'bpf-raw-tracepoint-support-for-bpf-cookie'

Andrii Nakryiko says:

====================
BPF raw tracepoint support for BPF cookie

Add ability to specify and retrieve BPF cookie for raw tracepoint programs.
Both BTF-aware (SEC("tp_btf")) and non-BTF-aware (SEC("raw_tp")) are
supported, as they are exactly the same at runtime.

This issue recently came up in production use cases, where custom tried to
switch from slower classic tracepoints to raw tracepoints and ran into this
limitation. Luckily, it's not that hard to support this for raw_tp programs.

v2->v3:
- s/bpf_raw_tp_open/bpf_raw_tracepoint_open_opts/ (Alexei, Eduard);
v1->v2:
- fixed type definition for stubs of bpf_probe_{register,unregister};
- added __u32 :u32 and aligned raw_tp fields (Jiri);
- added Stanislav's ack.
====================

Link: https://lore.kernel.org/r/20240319233852.1977493-1-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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bpf: support BPF cookie in raw tracepoint (raw_tp, tp_btf) programs

Wire up BPF cookie for raw tracepoint programs (both BTF and non-BTF
aware variants). This brings them up to part w.r.t. BPF cooki

bpf: support BPF cookie in raw tracepoint (raw_tp, tp_btf) programs

Wire up BPF cookie for raw tracepoint programs (both BTF and non-BTF
aware variants). This brings them up to part w.r.t. BPF cookie usage
with classic tracepoint and fentry/fexit programs.

Acked-by: Stanislav Fomichev <sdf@google.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Message-ID: <20240319233852.1977493-4-andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Merge drm/drm-next into drm-intel-next

Sync to get the drm_printer changes to drm-intel-next.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>