Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 233 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-nfit b/Documentation/ABI/testing/sysfs-bus-nfit
new file mode 100644
index 000000000..e7282d184
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-nfit
@@ -0,0 +1,233 @@
+For all of the nmem device attributes under ``nfit/*``, see the 'NVDIMM Firmware
+Interface Table (NFIT)' section in the ACPI specification
+(http://www.uefi.org/specifications) for more details.
+
+What:		/sys/bus/nd/devices/nmemX/nfit/serial
+Date:		Jun, 2015
+KernelVersion:	v4.2
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) Serial number of the NVDIMM (non-volatile dual in-line
+		memory module), assigned by the module vendor.
+
+
+What:		/sys/bus/nd/devices/nmemX/nfit/handle
+Date:		Apr, 2015
+KernelVersion:	v4.2
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) The address (given by the _ADR object) of the device on its
+		parent bus of the NVDIMM device containing the NVDIMM region.
+
+
+What:		/sys/bus/nd/devices/nmemX/nfit/device
+Date:		Apr, 2015
+KernelVersion:	v4.1
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) Device id for the NVDIMM, assigned by the module vendor.
+
+
+What:		/sys/bus/nd/devices/nmemX/nfit/rev_id
+Date:		Jun, 2015
+KernelVersion:	v4.2
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) Revision of the NVDIMM, assigned by the module vendor.
+
+
+What:		/sys/bus/nd/devices/nmemX/nfit/phys_id
+Date:		Apr, 2015
+KernelVersion:	v4.2
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) Handle (i.e., instance number) for the SMBIOS (system
+		management BIOS) Memory Device structure describing the NVDIMM
+		containing the NVDIMM region.
+
+
+What:		/sys/bus/nd/devices/nmemX/nfit/flags
+Date:		Jun, 2015
+KernelVersion:	v4.2
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) The flags in the NFIT memory device sub-structure indicate
+		the state of the data on the nvdimm relative to its energy
+		source or last "flush to persistence".
+
+		The attribute is a translation of the 'NVDIMM State Flags' field
+		in section 5.2.25.3 'NVDIMM Region Mapping' Structure of the
+		ACPI specification 6.2.
+
+		The health states are "save_fail", "restore_fail", "flush_fail",
+		"not_armed", "smart_event", "map_fail" and "smart_notify".
+
+
+What:		/sys/bus/nd/devices/nmemX/nfit/format
+What:		/sys/bus/nd/devices/nmemX/nfit/format1
+What:		/sys/bus/nd/devices/nmemX/nfit/formats
+Date:		Apr, 2016
+KernelVersion:	v4.7
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) The interface codes indicate support for persistent memory
+		mapped directly into system physical address space and / or a
+		block aperture access mechanism to the NVDIMM media.
+		The 'formats' attribute displays the number of supported
+		interfaces.
+
+		This layout is compatible with existing libndctl binaries that
+		only expect one code per-dimm as they will ignore
+		nmemX/nfit/formats and nmemX/nfit/formatN.
+
+
+What:		/sys/bus/nd/devices/nmemX/nfit/vendor
+Date:		Apr, 2016
+KernelVersion:	v4.7
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) Vendor id of the NVDIMM.
+
+
+What:		/sys/bus/nd/devices/nmemX/nfit/dsm_mask
+Date:		May, 2016
+KernelVersion:	v4.7
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) The bitmask indicates the supported device specific control
+		functions relative to the NVDIMM command family supported by the
+		device
+
+
+What:		/sys/bus/nd/devices/nmemX/nfit/family
+Date:		Apr, 2016
+KernelVersion:	v4.7
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) Displays the NVDIMM family command sets. Values
+		0, 1, 2 and 3 correspond to NVDIMM_FAMILY_INTEL,
+		NVDIMM_FAMILY_HPE1, NVDIMM_FAMILY_HPE2 and NVDIMM_FAMILY_MSFT
+		respectively.
+
+		See the specifications for these command families here:
+		http://pmem.io/documents/NVDIMM_DSM_Interface-V1.6.pdf
+		https://github.com/HewlettPackard/hpe-nvm/blob/master/Documentation/
+		https://msdn.microsoft.com/library/windows/hardware/mt604741"
+
+
+What:		/sys/bus/nd/devices/nmemX/nfit/id
+Date:		Apr, 2016
+KernelVersion:	v4.7
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) ACPI specification 6.2 section 5.2.25.9, defines an
+		identifier for an NVDIMM, which refelects the id attribute.
+
+
+What:		/sys/bus/nd/devices/nmemX/nfit/subsystem_vendor
+Date:		Apr, 2016
+KernelVersion:	v4.7
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) Sub-system vendor id of the NVDIMM non-volatile memory
+		subsystem controller.
+
+
+What:		/sys/bus/nd/devices/nmemX/nfit/subsystem_rev_id
+Date:		Apr, 2016
+KernelVersion:	v4.7
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) Sub-system revision id of the NVDIMM non-volatile memory subsystem
+		controller, assigned by the non-volatile memory subsystem
+		controller vendor.
+
+
+What:		/sys/bus/nd/devices/nmemX/nfit/subsystem_device
+Date:		Apr, 2016
+KernelVersion:	v4.7
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) Sub-system device id for the NVDIMM non-volatile memory
+		subsystem controller, assigned by the non-volatile memory
+		subsystem controller vendor.
+
+
+What:		/sys/bus/nd/devices/ndbusX/nfit/revision
+Date:		Jun, 2015
+KernelVersion:	v4.2
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) ACPI NFIT table revision number.
+
+
+What:		/sys/bus/nd/devices/ndbusX/nfit/scrub
+Date:		Sep, 2016
+KernelVersion:	v4.9
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RW) This shows the number of full Address Range Scrubs (ARS)
+		that have been completed since driver load time. Userspace can
+		wait on this using select/poll etc. A '+' at the end indicates
+		an ARS is in progress
+
+		Writing a value of 1 triggers an ARS scan.
+
+
+What:		/sys/bus/nd/devices/ndbusX/nfit/hw_error_scrub
+Date:		Sep, 2016
+KernelVersion:	v4.9
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RW) Provides a way to toggle the behavior between just adding
+		the address (cache line) where the MCE happened to the poison
+		list and doing a full scrub. The former (selective insertion of
+		the address) is done unconditionally.
+
+		This attribute can have the following values written to it:
+
+		'0': Switch to the default mode where an exception will only
+		insert the address of the memory error into the poison and
+		badblocks lists.
+		'1': Enable a full scrub to happen if an exception for a memory
+		error is received.
+
+
+What:		/sys/bus/nd/devices/ndbusX/nfit/dsm_mask
+Date:		Jun, 2017
+KernelVersion:	v4.13
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) The bitmask indicates the supported bus specific control
+		functions. See the section named 'NVDIMM Root Device _DSMs' in
+		the ACPI specification.
+
+What:		/sys/bus/nd/devices/ndbusX/nfit/firmware_activate_noidle
+Date:		Apr, 2020
+KernelVersion:	v5.8
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RW) The Intel platform implementation of firmware activate
+		support exposes an option let the platform force idle devices in
+		the system over the activation event, or trust that the OS will
+		do it. The safe default is to let the platform force idle
+		devices since the kernel is already in a suspend state, and on
+		the chance that a driver does not properly quiesce bus-mastering
+		after a suspend callback the platform will handle it.  However,
+		the activation might abort if, for example, platform firmware
+		determines that the activation time exceeds the max PCI-E
+		completion timeout. Since the platform does not know whether the
+		OS is running the activation from a suspend context it aborts,
+		but if the system owner trusts driver suspend callback to be
+		sufficient then 'firmware_activation_noidle' can be
+		enabled to bypass the activation abort.
+
+What:		/sys/bus/nd/devices/regionX/nfit/range_index
+Date:		Jun, 2015
+KernelVersion:	v4.2
+Contact:	nvdimm@lists.linux.dev
+Description:
+		(RO) A unique number provided by the BIOS to identify an address
+		range. Used by NVDIMM Region Mapping Structure to uniquely refer
+		to this structure. Value of 0 is reserved and not used as an
+		index.