Merge branch 'next' into for-linus

Prepare input updates for 6.12 merge window.

Merge branch 'ib/6.11-rc6-matrix-keypad-spitz' into next

Bring in changes removing support for platform data from matrix-keypad
driver.

Merge tag 'v6.11-rc1' into clk-meson-next

Linux 6.11-rc1

Merge tag 'v6.11-rc3' into trace/ring-buffer/core

The "reserve_mem" kernel command line parameter has been pulled into
v6.11. Merge the latest -rc3 to allow the persistent ring buffer memory to
be a

Merge tag 'v6.11-rc3' into trace/ring-buffer/core

The "reserve_mem" kernel command line parameter has been pulled into
v6.11. Merge the latest -rc3 to allow the persistent ring buffer memory to
be able to be mapped at the address specified by the "reserve_mem" command
line parameter.

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

show more ...

Merge tag 'v6.11-rc1' into for-6.12

Linux 6.11-rc1

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

Get drm-xe-next on v6.11-rc2 and synchronized with drm-intel-next for
the display side. This resolves the current conflict for the
enable_display module parameter

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

Get drm-xe-next on v6.11-rc2 and synchronized with drm-intel-next for
the display side. This resolves the current conflict for the
enable_display module parameter and allows further pending refactors.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

show more ...

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

Get drm-misc-next to the state of v6.11-rc2.

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

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

Sync with v6.11-rc1 in general, and specifically get the new
BACKLIGHT_POWER_ constants for power states.

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

Merge branch 'linus' into x86/mm

Bring x86 and selftests up to date

Merge drm/drm-fixes into drm-misc-fixes

Let's start the new drm-misc-fixes cycle by bringing in 6.11-rc1.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge branch 'next' into for-linus

Prepare input updates for 6.11 merge window.

Merge tag 'v6.9' into next

Sync up with the mainline to bring in the new cleanup API.

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

Some display refactoring patches are needed in order to allow conflict-
less merging.

Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>

Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Not much excitement - a handful of large patchsets (devmem a

Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Not much excitement - a handful of large patchsets (devmem among them)
did not make it in time.

Core & protocols:

- Use local_lock in addition to local_bh_disable() to protect per-CPU
resources in networking, a step closer for local_bh_disable() not
to act as a big lock on PREEMPT_RT

- Use flex array for netdevice priv area, ensure its cache alignment

- Add a sysctl knob to allow user to specify a default rto_min at
socket init time. Bit of a big hammer but multiple companies were
independently carrying such patch downstream so clearly it's useful

- Support scheduling transmission of packets based on CLOCK_TAI

- Un-pin TCP TIMEWAIT timer to avoid it firing on CPUs later cordoned
off using cpusets

- Support multiple L2TPv3 UDP tunnels using the same 5-tuple address

- Allow configuration of multipath hash seed, to both allow
synchronizing hashing of two routers, and preventing partial
accidental sync

- Improve TCP compliance with RFC 9293 for simultaneous connect()

- Support sending NAT keepalives in IPsec ESP in UDP states.
Userspace IKE daemon had to do this before, but the kernel can
better keep track of it

- Support sending supervision HSR frames with MAC addresses stored in
ProxyNodeTable when RedBox (i.e. HSR-SAN) is enabled

- Introduce IPPROTO_SMC for selecting SMC when socket is created

- Allow UDP GSO transmit from devices with no checksum offload

- openvswitch: add packet sampling via psample, separating the
sampled traffic from "upcall" packets sent to user space for
forwarding

- nf_tables: shrink memory consumption for transaction objects

Things we sprinkled into general kernel code:

- Power Sequencing subsystem (used by Qualcomm Bluetooth driver for
QCA6390) [ Already merged separately - Linus ]

- Add IRQ information in sysfs for auxiliary bus

- Introduce guard definition for local_lock

- Add aligned flavor of __cacheline_group_{begin, end}() markings for
grouping fields in structures

BPF:

- Notify user space (via epoll) when a struct_ops object is getting
detached/unregistered

- Add new kfuncs for a generic, open-coded bits iterator

- Enable BPF programs to declare arrays of kptr, bpf_rb_root, and
bpf_list_head

- Support resilient split BTF which cuts down on duplication and
makes BTF as compact as possible WRT BTF from modules

- Add support for dumping kfunc prototypes from BTF which enables
both detecting as well as dumping compilable prototypes for kfuncs

- riscv64 BPF JIT improvements in particular to add 12-argument
support for BPF trampolines and to utilize bpf_prog_pack for the
latter

- Add the capability to offload the netfilter flowtable in XDP layer
through kfuncs

Driver API:

- Allow users to configure IRQ tresholds between which automatic IRQ
moderation can choose

- Expand Power Sourcing (PoE) status with power, class and failure
reason. Support setting power limits

- Track additional RSS contexts in the core, make sure configuration
changes don't break them

- Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated
ESP data paths

- Support updating firmware on SFP modules

Tests and tooling:

- mptcp: use net/lib.sh to manage netns

- TCP-AO and TCP-MD5: replace debug prints used by tests with
tracepoints

- openvswitch: make test self-contained (don't depend on OvS CLI
tools)

Drivers:

- Ethernet high-speed NICs:
- Broadcom (bnxt):
- increase the max total outstanding PTP TX packets to 4
- add timestamping statistics support
- implement netdev_queue_mgmt_ops
- support new RSS context API
- Intel (100G, ice, idpf):
- implement FEC statistics and dumping signal quality indicators
- support E825C products (with 56Gbps PHYs)
- nVidia/Mellanox:
- support HW-GRO
- mlx4/mlx5: support per-queue statistics via netlink
- obey the max number of EQs setting in sub-functions
- AMD/Solarflare:
- support new RSS context API
- AMD/Pensando:
- ionic: rework fix for doorbell miss to lower overhead and
skip it on new HW
- Wangxun:
- txgbe: support Flow Director perfect filters

- Ethernet NICs consumer, embedded and virtual:
- Add driver for Tehuti Networks TN40xx chips
- Add driver for Meta's internal NIC chips
- Add driver for Ethernet MAC on Airoha EN7581 SoCs
- Add driver for Renesas Ethernet-TSN devices
- Google cloud vNIC:
- flow steering support
- Microsoft vNIC:
- support page sizes other than 4KB on ARM64
- vmware vNIC:
- support latency measurement (update to version 9)
- VirtIO net:
- support for Byte Queue Limits
- support configuring thresholds for automatic IRQ moderation
- support for AF_XDP Rx zero-copy
- Synopsys (stmmac):
- support for STM32MP13 SoC
- let platforms select the right PCS implementation
- TI:
- icssg-prueth: add multicast filtering support
- icssg-prueth: enable PTP timestamping and PPS
- Renesas:
- ravb: improve Rx performance 30-400% by using page pool,
theaded NAPI and timer-based IRQ coalescing
- ravb: add MII support for R-Car V4M
- Cadence (macb):
- macb: add ARP support to Wake-On-LAN
- Cortina:
- use phylib for RX and TX pause configuration

- Ethernet switches:
- nVidia/Mellanox:
- support configuration of multipath hash seed
- report more accurate max MTU
- use page_pool to improve Rx performance
- MediaTek:
- mt7530: add support for bridge port isolation
- Qualcomm:
- qca8k: add support for bridge port isolation
- Microchip:
- lan9371/2: add 100BaseTX PHY support
- NXP:
- vsc73xx: implement VLAN operations

- Ethernet PHYs:
- aquantia: enable support for aqr115c
- aquantia: add support for PHY LEDs
- realtek: add support for rtl8224 2.5Gbps PHY
- xpcs: add memory-mapped device support
- add BroadR-Reach link mode and support in Broadcom's PHY driver

- CAN:
- add document for ISO 15765-2 protocol support
- mcp251xfd: workaround for erratum DS80000789E, use timestamps to
catch when device returns incorrect FIFO status

- WiFi:
- mac80211/cfg80211:
- parse Transmit Power Envelope (TPE) data in mac80211 instead
of in drivers
- improvements for 6 GHz regulatory flexibility
- multi-link improvements
- support multiple radios per wiphy
- remove DEAUTH_NEED_MGD_TX_PREP flag
- Intel (iwlwifi):
- bump FW API to 91 for BZ/SC devices
- report 64-bit radiotap timestamp
- enable P2P low latency by default
- handle Transmit Power Envelope (TPE) advertised by AP
- remove support for older FW for new devices
- fast resume (keeping the device configured)
- mvm: re-enable Multi-Link Operation (MLO)
- aggregation (A-MSDU) optimizations
- MediaTek (mt76):
- mt7925 Multi-Link Operation (MLO) support
- Qualcomm (ath10k):
- LED support for various chipsets
- Qualcomm (ath12k):
- remove unsupported Tx monitor handling
- support channel 2 in 6 GHz band
- support Spatial Multiplexing Power Save (SMPS) in 6 GHz band
- supprt multiple BSSID (MBSSID) and Enhanced Multi-BSSID
Advertisements (EMA)
- support dynamic VLAN
- add panic handler for resetting the firmware state
- DebugFS support for datapath statistics
- WCN7850: support for Wake on WLAN
- Microchip (wilc1000):
- read MAC address during probe to make it visible to user space
- suspend/resume improvements
- TI (wl18xx):
- support newer firmware versions
- RealTek (rtw89):
- preparation for RTL8852BE-VT support
- Wake on WLAN support for WiFi 6 chips
- 36-bit PCI DMA support
- RealTek (rtlwifi):
- RTL8192DU support
- Broadcom (brcmfmac):
- Management Frame Protection support (to enable WPA3)

- Bluetooth:
- qualcomm: use the power sequencer for QCA6390
- btusb: mediatek: add ISO data transmission functions
- hci_bcm4377: add BCM4388 support
- btintel: add support for BlazarU core
- btintel: add support for Whale Peak2
- btnxpuart: add support for AW693 A1 chipset
- btnxpuart: add support for IW615 chipset
- btusb: add Realtek RTL8852BE support ID 0x13d3:0x3591"

* tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1589 commits)
eth: fbnic: Fix spelling mistake "tiggerring" -> "triggering"
tcp: Replace strncpy() with strscpy()
wifi: ath12k: fix build vs old compiler
tcp: Don't access uninit tcp_rsk(req)->ao_keyid in tcp_create_openreq_child().
eth: fbnic: Write the TCAM tables used for RSS control and Rx to host
eth: fbnic: Add L2 address programming
eth: fbnic: Add basic Rx handling
eth: fbnic: Add basic Tx handling
eth: fbnic: Add link detection
eth: fbnic: Add initial messaging to notify FW of our presence
eth: fbnic: Implement Rx queue alloc/start/stop/free
eth: fbnic: Implement Tx queue alloc/start/stop/free
eth: fbnic: Allocate a netdevice and napi vectors with queues
eth: fbnic: Add FW communication mechanism
eth: fbnic: Add message parsing for FW messages
eth: fbnic: Add register init to set PCIe/Ethernet device config
eth: fbnic: Allocate core device specific structures and devlink interface
eth: fbnic: Add scaffolding for Meta's NIC driver
PCI: Add Meta Platforms vendor ID
net/sched: cls_flower: propagate tca[TCA_OPTIONS] to NL_REQ_ATTR_CHECK
...

show more ...

Merge branch 'locking-introduce-nested-bh-locking'

Sebastian Andrzej Siewior says:

====================
locking: Introduce nested-BH locking.

Disabling bottoms halves acts as per-CPU BKL. On PREEM

Merge branch 'locking-introduce-nested-bh-locking'

Sebastian Andrzej Siewior says:

====================
locking: Introduce nested-BH locking.

Disabling bottoms halves acts as per-CPU BKL. On PREEMPT_RT code within
local_bh_disable() section remains preemtible. As a result high prior
tasks (or threaded interrupts) will be blocked by lower-prio task (or
threaded interrupts) which are long running which includes softirq
sections.

The proposed way out is to introduce explicit per-CPU locks for
resources which are protected by local_bh_disable() and use those only
on PREEMPT_RT so there is no additional overhead for !PREEMPT_RT builds.

The series introduces the infrastructure and converts large parts of
networking which is largest stake holder here. Once this done the
per-CPU lock from local_bh_disable() on PREEMPT_RT can be lifted.

Performance testing. Baseline is net-next as of commit 93bda33046e7a
("Merge branch'net-constify-ctl_table-arguments-of-utility-functions'")
plus v6.10-rc1. A 10GiG link is used between two hosts. The command
xdp-bench redirect-cpu --cpu 3 --remote-action drop eth1 -e

was invoked on the receiving side with a ixgbe. The sending side uses
pktgen_sample03_burst_single_flow.sh on i40e.

Baseline:
| eth1->? 9,018,604 rx/s 0 err,drop/s
| receive total 9,018,604 pkt/s 0 drop/s 0 error/s
| cpu:7 9,018,604 pkt/s 0 drop/s 0 error/s
| enqueue to cpu 3 9,018,602 pkt/s 0 drop/s 7.00 bulk-avg
| cpu:7->3 9,018,602 pkt/s 0 drop/s 7.00 bulk-avg
| kthread total 9,018,606 pkt/s 0 drop/s 214,698 sched
| cpu:3 9,018,606 pkt/s 0 drop/s 214,698 sched
| xdp_stats 0 pass/s 9,018,606 drop/s 0 redir/s
| cpu:3 0 pass/s 9,018,606 drop/s 0 redir/s
| redirect_err 0 error/s
| xdp_exception 0 hit/s

perf top --sort cpu,symbol --no-children:
| 18.14% 007 [k] bpf_prog_4f0ffbb35139c187_cpumap_l4_hash
| 13.29% 007 [k] ixgbe_poll
| 12.66% 003 [k] cpu_map_kthread_run
| 7.23% 003 [k] page_frag_free
| 6.76% 007 [k] xdp_do_redirect
| 3.76% 007 [k] cpu_map_redirect
| 3.13% 007 [k] bq_flush_to_queue
| 2.51% 003 [k] xdp_return_frame
| 1.93% 007 [k] try_to_wake_up
| 1.78% 007 [k] _raw_spin_lock
| 1.74% 007 [k] cpu_map_enqueue
| 1.56% 003 [k] bpf_prog_57cd311f2e27366b_cpumap_drop

With this series applied:
| eth1->? 10,329,340 rx/s 0 err,drop/s
| receive total 10,329,340 pkt/s 0 drop/s 0 error/s
| cpu:6 10,329,340 pkt/s 0 drop/s 0 error/s
| enqueue to cpu 3 10,329,338 pkt/s 0 drop/s 8.00 bulk-avg
| cpu:6->3 10,329,338 pkt/s 0 drop/s 8.00 bulk-avg
| kthread total 10,329,321 pkt/s 0 drop/s 96,297 sched
| cpu:3 10,329,321 pkt/s 0 drop/s 96,297 sched
| xdp_stats 0 pass/s 10,329,321 drop/s 0 redir/s
| cpu:3 0 pass/s 10,329,321 drop/s 0 redir/s
| redirect_err 0 error/s
| xdp_exception 0 hit/s

perf top --sort cpu,symbol --no-children:
| 20.90% 006 [k] bpf_prog_4f0ffbb35139c187_cpumap_l4_hash
| 12.62% 006 [k] ixgbe_poll
| 9.82% 003 [k] page_frag_free
| 8.73% 003 [k] cpu_map_bpf_prog_run_xdp
| 6.63% 006 [k] xdp_do_redirect
| 4.94% 003 [k] cpu_map_kthread_run
| 4.28% 006 [k] cpu_map_redirect
| 4.03% 006 [k] bq_flush_to_queue
| 3.01% 003 [k] xdp_return_frame
| 1.95% 006 [k] _raw_spin_lock
| 1.94% 003 [k] bpf_prog_57cd311f2e27366b_cpumap_drop

This diff appears to be noise.

v8: https://lore.kernel.org/all/20240619072253.504963-1-bigeasy@linutronix.de
v7: https://lore.kernel.org/all/20240618072526.379909-1-bigeasy@linutronix.de
v6: https://lore.kernel.org/all/20240612170303.3896084-1-bigeasy@linutronix.de
v5: https://lore.kernel.org/all/20240607070427.1379327-1-bigeasy@linutronix.de
v4: https://lore.kernel.org/all/20240604154425.878636-1-bigeasy@linutronix.de
v3: https://lore.kernel.org/all/20240529162927.403425-1-bigeasy@linutronix.de
v2: https://lore.kernel.org/all/20240503182957.1042122-1-bigeasy@linutronix.de
v1: https://lore.kernel.org/all/20231215171020.687342-1-bigeasy@linutronix.de
====================

Link: https://patch.msgid.link/20240620132727.660738-1-bigeasy@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

show more ...

net/tcp_sigpool: Use nested-BH locking for sigpool_scratch.

sigpool_scratch is a per-CPU variable and relies on disabled BH for its
locking. Without per-CPU locking in local_bh_disable() on PREEMPT_

net/tcp_sigpool: Use nested-BH locking for sigpool_scratch.

sigpool_scratch is a per-CPU variable and relies on disabled BH for its
locking. Without per-CPU locking in local_bh_disable() on PREEMPT_RT
this data structure requires explicit locking.

Make a struct with a pad member (original sigpool_scratch) and a
local_lock_t and use local_lock_nested_bh() for locking. This change
adds only lockdep coverage and does not alter the functional behaviour
for !PREEMPT_RT.

Cc: David Ahern <dsahern@kernel.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/20240620132727.660738-6-bigeasy@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

show more ...

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>

Merge tag 'drm-misc-next-2024-02-08' into msm-next

Merge the drm-misc tree to uprev MSM CI.

Signed-off-by: Rob Clark <robdclark@chromium.org>

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

Kickstart 6.9 development cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

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

Sync to v6.8-rc1.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

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

Backmerge to bring Xe driver to drm-intel-next.

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

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@k

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@kernel.org>

show more ...

Merge branch 'linus' into x86/mm, to refresh the branch and pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge v6.8-rc1 into drm-misc-fixes

Let's kickstart the 6.8 fix cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers,

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers, etc.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...