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, 224 insertions, 0 deletions

diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
new file mode 100644
index 000000000..cd34e8dc9
--- /dev/null
+++ b/drivers/net/can/Kconfig
@@ -0,0 +1,224 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+menuconfig CAN_DEV
+	tristate "CAN Device Drivers"
+	default y
+	depends on CAN
+	help
+	  Controller Area Network (CAN) is serial communications protocol up to
+	  1Mbit/s for its original release (now known as Classical CAN) and up
+	  to 8Mbit/s for the more recent CAN with Flexible Data-Rate
+	  (CAN-FD). The CAN bus was originally mainly for automotive, but is now
+	  widely used in marine (NMEA2000), industrial, and medical
+	  applications. More information on the CAN network protocol family
+	  PF_CAN is contained in <Documentation/networking/can.rst>.
+
+	  This section contains all the CAN(-FD) device drivers including the
+	  virtual ones. If you own such devices or plan to use the virtual CAN
+	  interfaces to develop applications, say Y here.
+
+	  To compile as a module, choose M here: the module will be called
+	  can-dev.
+
+if CAN_DEV
+
+config CAN_VCAN
+	tristate "Virtual Local CAN Interface (vcan)"
+	help
+	  Similar to the network loopback devices, vcan offers a
+	  virtual local CAN interface.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called vcan.
+
+config CAN_VXCAN
+	tristate "Virtual CAN Tunnel (vxcan)"
+	help
+	  Similar to the virtual ethernet driver veth, vxcan implements a
+	  local CAN traffic tunnel between two virtual CAN network devices.
+	  When creating a vxcan, two vxcan devices are created as pair.
+	  When one end receives the packet it appears on its pair and vice
+	  versa. The vxcan can be used for cross namespace communication.
+
+	  In opposite to vcan loopback devices the vxcan only forwards CAN
+	  frames to its pair and does *not* provide a local echo of sent
+	  CAN frames. To disable a potential echo in af_can.c the vxcan driver
+	  announces IFF_ECHO in the interface flags. To have a clean start
+	  in each namespace the CAN GW hop counter is set to zero.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called vxcan.
+
+config CAN_NETLINK
+	bool "CAN device drivers with Netlink support"
+	default y
+	help
+	  Enables the common framework for CAN device drivers. This is the
+	  standard library and provides features for the Netlink interface such
+	  as bittiming validation, support of CAN error states, device restart
+	  and others.
+
+	  The additional features selected by this option will be added to the
+	  can-dev module.
+
+	  This is required by all platform and hardware CAN drivers. If you
+	  plan to use such devices or if unsure, say Y.
+
+if CAN_NETLINK
+
+config CAN_CALC_BITTIMING
+	bool "CAN bit-timing calculation"
+	default y
+	help
+	  If enabled, CAN bit-timing parameters will be calculated for the
+	  bit-rate specified via Netlink argument "bitrate" when the device
+	  get started. This works fine for the most common CAN controllers
+	  with standard bit-rates but may fail for exotic bit-rates or CAN
+	  source clock frequencies. Disabling saves some space, but then the
+	  bit-timing parameters must be specified directly using the Netlink
+	  arguments "tq", "prop_seg", "phase_seg1", "phase_seg2" and "sjw".
+
+	  The additional features selected by this option will be added to the
+	  can-dev module.
+
+	  If unsure, say Y.
+
+config CAN_RX_OFFLOAD
+	bool
+
+config CAN_AT91
+	tristate "Atmel AT91 onchip CAN controller"
+	depends on (ARCH_AT91 || COMPILE_TEST) && HAS_IOMEM
+	help
+	  This is a driver for the SoC CAN controller in Atmel's AT91SAM9263
+	  and AT91SAM9X5 processors.
+
+config CAN_CAN327
+	tristate "Serial / USB serial ELM327 based OBD-II Interfaces (can327)"
+	depends on TTY
+	select CAN_RX_OFFLOAD
+	help
+	  CAN driver for several 'low cost' OBD-II interfaces based on the
+	  ELM327 OBD-II interpreter chip.
+
+	  This is a best effort driver - the ELM327 interface was never
+	  designed to be used as a standalone CAN interface. However, it can
+	  still be used for simple request-response protocols (such as OBD II),
+	  and to monitor broadcast messages on a bus (such as in a vehicle).
+
+	  Please refer to the documentation for information on how to use it:
+	  Documentation/networking/device_drivers/can/can327.rst
+
+	  If this driver is built as a module, it will be called can327.
+
+config CAN_FLEXCAN
+	tristate "Support for Freescale FLEXCAN based chips"
+	depends on OF || COLDFIRE || COMPILE_TEST
+	depends on HAS_IOMEM
+	select CAN_RX_OFFLOAD
+	help
+	  Say Y here if you want to support for Freescale FlexCAN.
+
+config CAN_GRCAN
+	tristate "Aeroflex Gaisler GRCAN and GRHCAN CAN devices"
+	depends on OF && HAS_DMA && HAS_IOMEM
+	help
+	  Say Y here if you want to use Aeroflex Gaisler GRCAN or GRHCAN.
+	  Note that the driver supports little endian, even though little
+	  endian syntheses of the cores would need some modifications on
+	  the hardware level to work.
+
+config CAN_JANZ_ICAN3
+	tristate "Janz VMOD-ICAN3 Intelligent CAN controller"
+	depends on MFD_JANZ_CMODIO
+	help
+	  Driver for Janz VMOD-ICAN3 Intelligent CAN controller module, which
+	  connects to a MODULbus carrier board.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called janz-ican3.ko.
+
+config CAN_KVASER_PCIEFD
+	depends on PCI
+	tristate "Kvaser PCIe FD cards"
+	select CRC32
+	  help
+	  This is a driver for the Kvaser PCI Express CAN FD family.
+
+	  Supported devices:
+	    Kvaser PCIEcan 4xHS
+	    Kvaser PCIEcan 2xHS v2
+	    Kvaser PCIEcan HS v2
+	    Kvaser Mini PCI Express HS v2
+	    Kvaser Mini PCI Express 2xHS v2
+
+config CAN_SLCAN
+	tristate "Serial / USB serial CAN Adaptors (slcan)"
+	depends on TTY
+	help
+	  CAN driver for several 'low cost' CAN interfaces that are attached
+	  via serial lines or via USB-to-serial adapters using the LAWICEL
+	  ASCII protocol. The driver implements the tty linediscipline N_SLCAN.
+
+	  As only the sending and receiving of CAN frames is implemented, this
+	  driver should work with the (serial/USB) CAN hardware from:
+	  www.canusb.com / www.can232.com / www.mictronics.de / www.canhack.de
+
+	  Userspace tools to attach the SLCAN line discipline (slcan_attach,
+	  slcand) can be found in the can-utils at the linux-can project, see
+	  https://github.com/linux-can/can-utils for details.
+
+	  The slcan driver supports up to 10 CAN netdevices by default which
+	  can be changed by the 'maxdev=xx' module option. This driver can
+	  also be built as a module. If so, the module will be called slcan.
+
+config CAN_SUN4I
+	tristate "Allwinner A10 CAN controller"
+	depends on MACH_SUN4I || MACH_SUN7I || COMPILE_TEST
+	help
+	  Say Y here if you want to use CAN controller found on Allwinner
+	  A10/A20 SoCs.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called sun4i_can.
+
+config CAN_TI_HECC
+	depends on ARM
+	tristate "TI High End CAN Controller"
+	select CAN_RX_OFFLOAD
+	help
+	  Driver for TI HECC (High End CAN Controller) module found on many
+	  TI devices. The device specifications are available from www.ti.com
+
+config CAN_XILINXCAN
+	tristate "Xilinx CAN"
+	depends on ARCH_ZYNQ || ARM64 || MICROBLAZE || COMPILE_TEST
+	depends on COMMON_CLK && HAS_IOMEM
+	help
+	  Xilinx CAN driver. This driver supports both soft AXI CAN IP and
+	  Zynq CANPS IP.
+
+source "drivers/net/can/c_can/Kconfig"
+source "drivers/net/can/cc770/Kconfig"
+source "drivers/net/can/ctucanfd/Kconfig"
+source "drivers/net/can/ifi_canfd/Kconfig"
+source "drivers/net/can/m_can/Kconfig"
+source "drivers/net/can/mscan/Kconfig"
+source "drivers/net/can/peak_canfd/Kconfig"
+source "drivers/net/can/rcar/Kconfig"
+source "drivers/net/can/sja1000/Kconfig"
+source "drivers/net/can/softing/Kconfig"
+source "drivers/net/can/spi/Kconfig"
+source "drivers/net/can/usb/Kconfig"
+
+endif #CAN_NETLINK
+
+config CAN_DEBUG_DEVICES
+	bool "CAN devices debugging messages"
+	help
+	  Say Y here if you want the CAN device drivers to produce a bunch of
+	  debug messages to the system log.  Select this if you are having
+	  a problem with CAN support and want to see more of what is going
+	  on.
+
+endif #CAN_DEV