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, 263 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/arm/psci.yaml b/Documentation/devicetree/bindings/arm/psci.yaml
new file mode 100644
index 000000000..3a2c908ff
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/psci.yaml
@@ -0,0 +1,263 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/psci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Power State Coordination Interface (PSCI)
+
+maintainers:
+  - Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
+
+description: |+
+  Firmware implementing the PSCI functions described in ARM document number
+  ARM DEN 0022A ("Power State Coordination Interface System Software on ARM
+  processors") can be used by Linux to initiate various CPU-centric power
+  operations.
+
+  Issue A of the specification describes functions for CPU suspend, hotplug
+  and migration of secure software.
+
+  Functions are invoked by trapping to the privilege level of the PSCI
+  firmware (specified as part of the binding below) and passing arguments
+  in a manner similar to that specified by AAPCS:
+
+     r0       => 32-bit Function ID / return value
+    {r1 - r3}	=> Parameters
+
+  Note that the immediate field of the trapping instruction must be set
+  to #0.
+
+  [2] Power State Coordination Interface (PSCI) specification
+    http://infocenter.arm.com/help/topic/com.arm.doc.den0022c/DEN0022C_Power_State_Coordination_Interface.pdf
+
+properties:
+  $nodename:
+    const: psci
+
+  compatible:
+    oneOf:
+      - description:
+          For implementations complying to PSCI versions prior to 0.2.
+        const: arm,psci
+
+      - description:
+          For implementations complying to PSCI 0.2.
+          Function IDs are not required and should be ignored by an OS with
+          PSCI 0.2 support, but are permitted to be present for compatibility
+          with existing software when "arm,psci" is later in the compatible
+          list.
+        minItems: 1
+        items:
+          - const: arm,psci-0.2
+          - const: arm,psci
+
+      - description:
+          For implementations complying to PSCI 1.0.
+          PSCI 1.0 is backward compatible with PSCI 0.2 with minor
+          specification updates, as defined in the PSCI specification[2].
+        minItems: 1
+        items:
+          - const: arm,psci-1.0
+          - const: arm,psci-0.2
+          - const: arm,psci
+
+  method:
+    description: The method of calling the PSCI firmware.
+    $ref: /schemas/types.yaml#/definitions/string-array
+    enum:
+      - smc
+      # HVC #0, with the register assignments specified in this binding.
+      - hvc
+
+  cpu_suspend:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Function ID for CPU_SUSPEND operation
+
+  cpu_off:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Function ID for CPU_OFF operation
+
+  cpu_on:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Function ID for CPU_ON operation
+
+  migrate:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Function ID for MIGRATE operation
+
+  arm,psci-suspend-param:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+      power_state parameter to pass to the PSCI suspend call.
+
+      Device tree nodes that require usage of PSCI CPU_SUSPEND function (ie
+      idle state nodes with entry-method property is set to "psci", as per
+      bindings in [1]) must specify this property.
+
+      [1] Kernel documentation - ARM idle states bindings
+        Documentation/devicetree/bindings/cpu/idle-states.yaml
+
+patternProperties:
+  "^power-domain-":
+    $ref: "../power/power-domain.yaml#"
+
+    type: object
+    description: |
+      ARM systems can have multiple cores, sometimes in an hierarchical
+      arrangement. This often, but not always, maps directly to the processor
+      power topology of the system. Individual nodes in a topology have their
+      own specific power states and can be better represented hierarchically.
+
+      For these cases, the definitions of the idle states for the CPUs and the
+      CPU topology, must conform to the binding in [3]. The idle states
+      themselves must conform to the binding in [4] and must specify the
+      arm,psci-suspend-param property.
+
+      It should also be noted that, in PSCI firmware v1.0 the OS-Initiated
+      (OSI) CPU suspend mode is introduced. Using a hierarchical representation
+      helps to implement support for OSI mode and OS implementations may choose
+      to mandate it.
+
+      [3] Documentation/devicetree/bindings/power/power-domain.yaml
+      [4] Documentation/devicetree/bindings/power/domain-idle-state.yaml
+
+required:
+  - compatible
+  - method
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: arm,psci
+    then:
+      required:
+        - cpu_off
+        - cpu_on
+
+additionalProperties: false
+
+examples:
+  - |+
+
+    // Case 1: PSCI v0.1 only.
+
+    psci {
+      compatible      = "arm,psci";
+      method          = "smc";
+      cpu_suspend     = <0x95c10000>;
+      cpu_off         = <0x95c10001>;
+      cpu_on          = <0x95c10002>;
+      migrate         = <0x95c10003>;
+    };
+
+  - |+
+
+    // Case 2: PSCI v0.2 only
+
+    psci {
+      compatible      = "arm,psci-0.2";
+      method          = "smc";
+    };
+
+
+  - |+
+
+    // Case 3: PSCI v0.2 and PSCI v0.1.
+
+    /*
+     * A DTB may provide IDs for use by kernels without PSCI 0.2 support,
+     * enabling firmware and hypervisors to support existing and new kernels.
+     * These IDs will be ignored by kernels with PSCI 0.2 support, which will
+     * use the standard PSCI 0.2 IDs exclusively.
+     */
+
+    psci {
+      compatible = "arm,psci-0.2", "arm,psci";
+      method = "hvc";
+
+      cpu_on = <0x95c10002>;
+      cpu_off = <0x95c10001>;
+    };
+
+  - |+
+
+    // Case 4: CPUs and CPU idle states described using the hierarchical model.
+
+    cpus {
+      #size-cells = <0>;
+      #address-cells = <1>;
+
+      CPU0: cpu@0 {
+        device_type = "cpu";
+        compatible = "arm,cortex-a53";
+        reg = <0x0>;
+        enable-method = "psci";
+        power-domains = <&CPU_PD0>;
+        power-domain-names = "psci";
+      };
+
+      CPU1: cpu@1 {
+        device_type = "cpu";
+        compatible = "arm,cortex-a53";
+        reg = <0x100>;
+        enable-method = "psci";
+        power-domains = <&CPU_PD1>;
+        power-domain-names = "psci";
+      };
+
+      idle-states {
+
+        CPU_PWRDN: cpu-power-down {
+          compatible = "arm,idle-state";
+          arm,psci-suspend-param = <0x0000001>;
+          entry-latency-us = <10>;
+          exit-latency-us = <10>;
+          min-residency-us = <100>;
+        };
+      };
+
+      domain-idle-states {
+
+        CLUSTER_RET: cluster-retention {
+          compatible = "domain-idle-state";
+          arm,psci-suspend-param = <0x1000011>;
+          entry-latency-us = <500>;
+          exit-latency-us = <500>;
+          min-residency-us = <2000>;
+        };
+
+        CLUSTER_PWRDN: cluster-power-down {
+          compatible = "domain-idle-state";
+          arm,psci-suspend-param = <0x1000031>;
+          entry-latency-us = <2000>;
+          exit-latency-us = <2000>;
+          min-residency-us = <6000>;
+        };
+      };
+    };
+
+    psci {
+      compatible = "arm,psci-1.0";
+      method = "smc";
+
+      CPU_PD0: power-domain-cpu0 {
+        #power-domain-cells = <0>;
+        domain-idle-states = <&CPU_PWRDN>;
+        power-domains = <&CLUSTER_PD>;
+      };
+
+      CPU_PD1: power-domain-cpu1 {
+        #power-domain-cells = <0>;
+        domain-idle-states =  <&CPU_PWRDN>;
+        power-domains = <&CLUSTER_PD>;
+      };
+
+      CLUSTER_PD: power-domain-cluster {
+        #power-domain-cells = <0>;
+        domain-idle-states = <&CLUSTER_RET>, <&CLUSTER_PWRDN>;
+      };
+    };
+...