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, 177 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/pci/host-generic-pci.yaml b/Documentation/devicetree/bindings/pci/host-generic-pci.yaml
new file mode 100644
index 000000000..d25423aa7
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/host-generic-pci.yaml
@@ -0,0 +1,177 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/host-generic-pci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic PCI host controller
+
+maintainers:
+  - Will Deacon <will@kernel.org>
+
+description: |
+  Firmware-initialised PCI host controllers and PCI emulations, such as the
+  virtio-pci implementations found in kvmtool and other para-virtualised
+  systems, do not require driver support for complexities such as regulator
+  and clock management. In fact, the controller may not even require the
+  configuration of a control interface by the operating system, instead
+  presenting a set of fixed windows describing a subset of IO, Memory and
+  Configuration Spaces.
+
+  Configuration Space is assumed to be memory-mapped (as opposed to being
+  accessed via an ioport) and laid out with a direct correspondence to the
+  geography of a PCI bus address by concatenating the various components to
+  form an offset.
+
+  For CAM, this 24-bit offset is:
+
+          cfg_offset(bus, device, function, register) =
+                     bus << 16 | device << 11 | function << 8 | register
+
+  While ECAM extends this by 4 bits to accommodate 4k of function space:
+
+          cfg_offset(bus, device, function, register) =
+                     bus << 20 | device << 15 | function << 12 | register
+
+properties:
+  compatible:
+    description: Depends on the layout of configuration space (CAM vs ECAM
+      respectively). May also have more specific compatibles.
+    oneOf:
+      - description:
+          PCIe host controller in Arm Juno based on PLDA XpressRICH3-AXI IP
+        items:
+          - const: arm,juno-r1-pcie
+          - const: plda,xpressrich3-axi
+          - const: pci-host-ecam-generic
+      - description: |
+          ThunderX PCI host controller for pass-1.x silicon
+
+          Firmware-initialized PCI host controller to on-chip devices found on
+          some Cavium ThunderX processors.  These devices have ECAM-based config
+          access, but the BARs are all at fixed addresses.  We handle the fixed
+          addresses by synthesizing Enhanced Allocation (EA) capabilities for
+          these devices.
+        const: cavium,pci-host-thunder-ecam
+      - description:
+          Cavium ThunderX PEM firmware-initialized PCIe host controller
+        const: cavium,pci-host-thunder-pem
+      - description:
+          HiSilicon Hip06/Hip07 PCIe host bridge in almost-ECAM mode. Some
+          firmware places the host controller in a mode where it is ECAM
+          compliant for all devices other than the root complex.
+        enum:
+          - hisilicon,hip06-pcie-ecam
+          - hisilicon,hip07-pcie-ecam
+      - description: |
+          In some cases, firmware may already have configured the Synopsys
+          DesignWare PCIe controller in RC mode with static ATU window mappings
+          that cover all config, MMIO and I/O spaces in a [mostly] ECAM
+          compatible fashion. In this case, there is no need for the OS to
+          perform any low level setup of clocks, PHYs or device registers, nor
+          is there any reason for the driver to reconfigure ATU windows for
+          config and/or IO space accesses at runtime.
+
+          In cases where the IP was synthesized with a minimum ATU window size
+          of 64 KB, it cannot be supported by the generic ECAM driver, because
+          it requires special config space accessors that filter accesses to
+          device #1 and beyond on the first bus.
+        items:
+          - enum:
+              - marvell,armada8k-pcie-ecam
+              - socionext,synquacer-pcie-ecam
+          - const: snps,dw-pcie-ecam
+      - description:
+          CAM or ECAM compliant PCI host controllers without any quirks
+        enum:
+          - pci-host-cam-generic
+          - pci-host-ecam-generic
+
+  reg:
+    description:
+      The Configuration Space base address and size, as accessed from the parent
+      bus. The base address corresponds to the first bus in the "bus-range"
+      property. If no "bus-range" is specified, this will be bus 0 (the
+      default). Some host controllers have a 2nd non-compliant address range,
+      so 2 entries are allowed.
+    minItems: 1
+    maxItems: 2
+
+  ranges:
+    description:
+      As described in IEEE Std 1275-1994, but must provide at least a
+      definition of non-prefetchable memory. One or both of prefetchable Memory
+      and IO Space may also be provided.
+    minItems: 1
+    maxItems: 3
+
+  dma-coherent: true
+  iommu-map: true
+  iommu-map-mask: true
+  msi-parent: true
+
+required:
+  - compatible
+  - reg
+  - ranges
+
+allOf:
+  - $ref: /schemas/pci/pci-bus.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: arm,juno-r1-pcie
+    then:
+      required:
+        - dma-coherent
+
+  - if:
+      properties:
+        compatible:
+          not:
+            contains:
+              enum:
+                - cavium,pci-host-thunder-pem
+                - hisilicon,hip06-pcie-ecam
+                - hisilicon,hip07-pcie-ecam
+    then:
+      properties:
+        reg:
+          maxItems: 1
+
+unevaluatedProperties: false
+
+examples:
+  - |
+
+    bus {
+        #address-cells = <2>;
+        #size-cells = <2>;
+        pcie@40000000 {
+            compatible = "pci-host-cam-generic";
+            device_type = "pci";
+            #address-cells = <3>;
+            #size-cells = <2>;
+            bus-range = <0x0 0x1>;
+
+            // CPU_PHYSICAL(2)  SIZE(2)
+            reg = <0x0 0x40000000  0x0 0x1000000>;
+
+            // BUS_ADDRESS(3)  CPU_PHYSICAL(2)  SIZE(2)
+            ranges = <0x01000000 0x0 0x01000000  0x0 0x01000000  0x0 0x00010000>,
+                     <0x02000000 0x0 0x41000000  0x0 0x41000000  0x0 0x3f000000>;
+
+            #interrupt-cells = <0x1>;
+
+            // PCI_DEVICE(3)  INT#(1)  CONTROLLER(PHANDLE)  CONTROLLER_DATA(3)
+            interrupt-map = <   0x0 0x0 0x0  0x1  &gic  0x0 0x4 0x1>,
+                            < 0x800 0x0 0x0  0x1  &gic  0x0 0x5 0x1>,
+                            <0x1000 0x0 0x0  0x1  &gic  0x0 0x6 0x1>,
+                            <0x1800 0x0 0x0  0x1  &gic  0x0 0x7 0x1>;
+
+            // PCI_DEVICE(3)  INT#(1)
+            interrupt-map-mask = <0xf800 0x0 0x0  0x7>;
+        };
+    };
+...