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, 113 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-vfio-mdev b/Documentation/ABI/testing/sysfs-bus-vfio-mdev
new file mode 100644
index 000000000..59fc80426
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-vfio-mdev
@@ -0,0 +1,113 @@
+What:           /sys/.../<device>/mdev_supported_types/
+Date:           October 2016
+Contact:        Kirti Wankhede <kwankhede@nvidia.com>
+Description:
+                This directory contains list of directories of currently
+		supported mediated device types and their details for
+		<device>. Supported type attributes are defined by the
+		vendor driver who registers with Mediated device framework.
+		Each supported type is a directory whose name is created
+		by adding the device driver string as a prefix to the
+		string provided by the vendor driver.
+
+What:           /sys/.../<device>/mdev_supported_types/<type-id>/
+Date:           October 2016
+Contact:        Kirti Wankhede <kwankhede@nvidia.com>
+Description:
+                This directory gives details of supported type, like name,
+		description, available_instances, device_api etc.
+		'device_api' and 'available_instances' are mandatory
+		attributes to be provided by vendor driver. 'name',
+		'description' and other vendor driver specific attributes
+		are optional.
+
+What:           /sys/.../mdev_supported_types/<type-id>/create
+Date:           October 2016
+Contact:        Kirti Wankhede <kwankhede@nvidia.com>
+Description:
+		Writing UUID to this file will create mediated device of
+		type <type-id> for parent device <device>. This is a
+		write-only file.
+		For example::
+
+		  # echo "83b8f4f2-509f-382f-3c1e-e6bfe0fa1001" >	\
+		       /sys/devices/foo/mdev_supported_types/foo-1/create
+
+What:           /sys/.../mdev_supported_types/<type-id>/devices/
+Date:           October 2016
+Contact:        Kirti Wankhede <kwankhede@nvidia.com>
+Description:
+		This directory contains symbolic links pointing to mdev
+		devices sysfs entries which are created of this <type-id>.
+
+What:           /sys/.../mdev_supported_types/<type-id>/available_instances
+Date:           October 2016
+Contact:        Kirti Wankhede <kwankhede@nvidia.com>
+Description:
+		Reading this attribute will show the number of mediated
+		devices of type <type-id> that can be created. This is a
+		readonly file.
+Users:
+		Userspace applications interested in creating mediated
+		device of that type. Userspace application should check
+		the number of available instances could be created before
+		creating mediated device of this type.
+
+What:           /sys/.../mdev_supported_types/<type-id>/device_api
+Date:           October 2016
+Contact:        Kirti Wankhede <kwankhede@nvidia.com>
+Description:
+		Reading this attribute will show VFIO device API supported
+		by this type. For example, "vfio-pci" for a PCI device,
+		"vfio-platform" for platform device.
+
+What:           /sys/.../mdev_supported_types/<type-id>/name
+Date:           October 2016
+Contact:        Kirti Wankhede <kwankhede@nvidia.com>
+Description:
+		Reading this attribute will show human readable name of the
+		mediated device that will get created of type <type-id>.
+		This is optional attribute. For example: "Grid M60-0Q"
+Users:
+		Userspace applications interested in knowing the name of
+		a particular <type-id> that can help in understanding the
+		type of mediated device.
+
+What:           /sys/.../mdev_supported_types/<type-id>/description
+Date:           October 2016
+Contact:        Kirti Wankhede <kwankhede@nvidia.com>
+Description:
+		Reading this attribute will show description of the type of
+		mediated device that will get created of type <type-id>.
+		This is optional attribute. For example:
+		"2 heads, 512M FB, 2560x1600 maximum resolution"
+Users:
+		Userspace applications interested in knowing the details of
+		a particular <type-id> that can help in understanding the
+		features provided by that type of mediated device.
+
+What:           /sys/.../<device>/<UUID>/
+Date:           October 2016
+Contact:        Kirti Wankhede <kwankhede@nvidia.com>
+Description:
+		This directory represents device directory of mediated
+		device. It contains all the attributes related to mediated
+		device.
+
+What:           /sys/.../<device>/<UUID>/mdev_type
+Date:           October 2016
+Contact:        Kirti Wankhede <kwankhede@nvidia.com>
+Description:
+		This is symbolic link pointing to supported type, <type-id>
+		directory of which this mediated device is created.
+
+What:           /sys/.../<device>/<UUID>/remove
+Date:           October 2016
+Contact:        Kirti Wankhede <kwankhede@nvidia.com>
+Description:
+		Writing '1' to this file destroys the mediated device. The
+		vendor driver can fail the remove() callback if that device
+		is active and the vendor driver doesn't support hot unplug.
+		Example::
+
+		  # echo 1 > /sys/bus/mdev/devices/<UUID>/remove