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, 317 insertions, 0 deletions

diff --git a/Documentation/userspace-api/media/v4l/vidioc-g-dv-timings.rst b/Documentation/userspace-api/media/v4l/vidioc-g-dv-timings.rst
new file mode 100644
index 000000000..6518d857c
--- /dev/null
+++ b/Documentation/userspace-api/media/v4l/vidioc-g-dv-timings.rst
@@ -0,0 +1,317 @@
+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: V4L
+
+.. _VIDIOC_G_DV_TIMINGS:
+
+**********************************************
+ioctl VIDIOC_G_DV_TIMINGS, VIDIOC_S_DV_TIMINGS
+**********************************************
+
+Name
+====
+
+VIDIOC_G_DV_TIMINGS - VIDIOC_S_DV_TIMINGS - VIDIOC_SUBDEV_G_DV_TIMINGS - VIDIOC_SUBDEV_S_DV_TIMINGS - Get or set DV timings for input or output
+
+Synopsis
+========
+
+.. c:macro:: VIDIOC_G_DV_TIMINGS
+
+``int ioctl(int fd, VIDIOC_G_DV_TIMINGS, struct v4l2_dv_timings *argp)``
+
+.. c:macro:: VIDIOC_S_DV_TIMINGS
+
+``int ioctl(int fd, VIDIOC_S_DV_TIMINGS, struct v4l2_dv_timings *argp)``
+
+.. c:macro:: VIDIOC_SUBDEV_G_DV_TIMINGS
+
+``int ioctl(int fd, VIDIOC_SUBDEV_G_DV_TIMINGS, struct v4l2_dv_timings *argp)``
+
+.. c:macro:: VIDIOC_SUBDEV_S_DV_TIMINGS
+
+``int ioctl(int fd, VIDIOC_SUBDEV_S_DV_TIMINGS, struct v4l2_dv_timings *argp)``
+
+Arguments
+=========
+
+``fd``
+    File descriptor returned by :c:func:`open()`.
+
+``argp``
+    Pointer to struct :c:type:`v4l2_dv_timings`.
+
+Description
+===========
+
+To set DV timings for the input or output, applications use the
+:ref:`VIDIOC_S_DV_TIMINGS <VIDIOC_G_DV_TIMINGS>` ioctl and to get the current timings,
+applications use the :ref:`VIDIOC_G_DV_TIMINGS <VIDIOC_G_DV_TIMINGS>` ioctl. The detailed timing
+information is filled in using the structure struct
+:c:type:`v4l2_dv_timings`. These ioctls take a
+pointer to the struct :c:type:`v4l2_dv_timings`
+structure as argument. If the ioctl is not supported or the timing
+values are not correct, the driver returns ``EINVAL`` error code.
+
+Calling ``VIDIOC_SUBDEV_S_DV_TIMINGS`` on a subdev device node that has been
+registered in read-only mode is not allowed. An error is returned and the errno
+variable is set to ``-EPERM``.
+
+The ``linux/v4l2-dv-timings.h`` header can be used to get the timings of
+the formats in the :ref:`cea861` and :ref:`vesadmt` standards. If
+the current input or output does not support DV timings (e.g. if
+:ref:`VIDIOC_ENUMINPUT` does not set the
+``V4L2_IN_CAP_DV_TIMINGS`` flag), then ``ENODATA`` error code is returned.
+
+Return Value
+============
+
+On success 0 is returned, on error -1 and the ``errno`` variable is set
+appropriately. The generic error codes are described at the
+:ref:`Generic Error Codes <gen-errors>` chapter.
+
+EINVAL
+    This ioctl is not supported, or the :ref:`VIDIOC_S_DV_TIMINGS <VIDIOC_G_DV_TIMINGS>`
+    parameter was unsuitable.
+
+ENODATA
+    Digital video timings are not supported for this input or output.
+
+EBUSY
+    The device is busy and therefore can not change the timings.
+
+EPERM
+    ``VIDIOC_SUBDEV_S_DV_TIMINGS`` has been called on a read-only subdevice.
+
+.. c:type:: v4l2_bt_timings
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.5cm}|
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_bt_timings
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - __u32
+      - ``width``
+      - Width of the active video in pixels.
+    * - __u32
+      - ``height``
+      - Height of the active video frame in lines. So for interlaced
+	formats the height of the active video in each field is
+	``height``/2.
+    * - __u32
+      - ``interlaced``
+      - Progressive (``V4L2_DV_PROGRESSIVE``) or interlaced (``V4L2_DV_INTERLACED``).
+    * - __u32
+      - ``polarities``
+      - This is a bit mask that defines polarities of sync signals. bit 0
+	(``V4L2_DV_VSYNC_POS_POL``) is for vertical sync polarity and bit
+	1 (``V4L2_DV_HSYNC_POS_POL``) is for horizontal sync polarity. If
+	the bit is set (1) it is positive polarity and if is cleared (0),
+	it is negative polarity.
+    * - __u64
+      - ``pixelclock``
+      - Pixel clock in Hz. Ex. 74.25MHz->74250000
+    * - __u32
+      - ``hfrontporch``
+      - Horizontal front porch in pixels
+    * - __u32
+      - ``hsync``
+      - Horizontal sync length in pixels
+    * - __u32
+      - ``hbackporch``
+      - Horizontal back porch in pixels
+    * - __u32
+      - ``vfrontporch``
+      - Vertical front porch in lines. For interlaced formats this refers
+	to the odd field (aka field 1).
+    * - __u32
+      - ``vsync``
+      - Vertical sync length in lines. For interlaced formats this refers
+	to the odd field (aka field 1).
+    * - __u32
+      - ``vbackporch``
+      - Vertical back porch in lines. For interlaced formats this refers
+	to the odd field (aka field 1).
+    * - __u32
+      - ``il_vfrontporch``
+      - Vertical front porch in lines for the even field (aka field 2) of
+	interlaced field formats. Must be 0 for progressive formats.
+    * - __u32
+      - ``il_vsync``
+      - Vertical sync length in lines for the even field (aka field 2) of
+	interlaced field formats. Must be 0 for progressive formats.
+    * - __u32
+      - ``il_vbackporch``
+      - Vertical back porch in lines for the even field (aka field 2) of
+	interlaced field formats. Must be 0 for progressive formats.
+    * - __u32
+      - ``standards``
+      - The video standard(s) this format belongs to. This will be filled
+	in by the driver. Applications must set this to 0. See
+	:ref:`dv-bt-standards` for a list of standards.
+    * - __u32
+      - ``flags``
+      - Several flags giving more information about the format. See
+	:ref:`dv-bt-flags` for a description of the flags.
+    * - struct :c:type:`v4l2_fract`
+      - ``picture_aspect``
+      - The picture aspect if the pixels are not square. Only valid if the
+        ``V4L2_DV_FL_HAS_PICTURE_ASPECT`` flag is set.
+    * - __u8
+      - ``cea861_vic``
+      - The Video Identification Code according to the CEA-861 standard.
+        Only valid if the ``V4L2_DV_FL_HAS_CEA861_VIC`` flag is set.
+    * - __u8
+      - ``hdmi_vic``
+      - The Video Identification Code according to the HDMI standard.
+        Only valid if the ``V4L2_DV_FL_HAS_HDMI_VIC`` flag is set.
+    * - __u8
+      - ``reserved[46]``
+      - Reserved for future extensions. Drivers and applications must set
+	the array to zero.
+
+.. tabularcolumns:: |p{3.5cm}|p{3.5cm}|p{7.0cm}|p{3.1cm}|
+
+.. c:type:: v4l2_dv_timings
+
+.. flat-table:: struct v4l2_dv_timings
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - __u32
+      - ``type``
+      - Type of DV timings as listed in :ref:`dv-timing-types`.
+    * - union {
+      - (anonymous)
+    * - struct :c:type:`v4l2_bt_timings`
+      - ``bt``
+      - Timings defined by BT.656/1120 specifications
+    * - __u32
+      - ``reserved``\ [32]
+      -
+    * - }
+      -
+
+.. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.5cm}|
+
+.. _dv-timing-types:
+
+.. flat-table:: DV Timing types
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - Timing type
+      - value
+      - Description
+    * -
+      -
+      -
+    * - ``V4L2_DV_BT_656_1120``
+      - 0
+      - BT.656/1120 timings
+
+.. tabularcolumns:: |p{6.5cm}|p{11.0cm}|
+
+.. cssclass:: longtable
+
+.. _dv-bt-standards:
+
+.. flat-table:: DV BT Timing standards
+    :header-rows:  0
+    :stub-columns: 0
+
+    * - Timing standard
+      - Description
+    * - ``V4L2_DV_BT_STD_CEA861``
+      - The timings follow the CEA-861 Digital TV Profile standard
+    * - ``V4L2_DV_BT_STD_DMT``
+      - The timings follow the VESA Discrete Monitor Timings standard
+    * - ``V4L2_DV_BT_STD_CVT``
+      - The timings follow the VESA Coordinated Video Timings standard
+    * - ``V4L2_DV_BT_STD_GTF``
+      - The timings follow the VESA Generalized Timings Formula standard
+    * - ``V4L2_DV_BT_STD_SDI``
+      - The timings follow the SDI Timings standard.
+	There are no horizontal syncs/porches at all in this format.
+	Total blanking timings must be set in hsync or vsync fields only.
+
+.. tabularcolumns:: |p{7.7cm}|p{9.8cm}|
+
+.. cssclass:: longtable
+
+.. _dv-bt-flags:
+
+.. flat-table:: DV BT Timing flags
+    :header-rows:  0
+    :stub-columns: 0
+
+    * - Flag
+      - Description
+    * - ``V4L2_DV_FL_REDUCED_BLANKING``
+      - CVT/GTF specific: the timings use reduced blanking (CVT) or the
+	'Secondary GTF' curve (GTF). In both cases the horizontal and/or
+	vertical blanking intervals are reduced, allowing a higher
+	resolution over the same bandwidth. This is a read-only flag,
+	applications must not set this.
+    * - ``V4L2_DV_FL_CAN_REDUCE_FPS``
+      - CEA-861 specific: set for CEA-861 formats with a framerate that is
+	a multiple of six. These formats can be optionally played at 1 /
+	1.001 speed to be compatible with 60 Hz based standards such as
+	NTSC and PAL-M that use a framerate of 29.97 frames per second. If
+	the transmitter can't generate such frequencies, then the flag
+	will also be cleared. This is a read-only flag, applications must
+	not set this.
+    * - ``V4L2_DV_FL_REDUCED_FPS``
+      - CEA-861 specific: only valid for video transmitters or video
+        receivers that have the ``V4L2_DV_FL_CAN_DETECT_REDUCED_FPS``
+	set. This flag is cleared otherwise. It is also only valid for
+	formats with the ``V4L2_DV_FL_CAN_REDUCE_FPS`` flag set, for other
+	formats the flag will be cleared by the driver.
+
+	If the application sets this flag for a transmitter, then the
+	pixelclock used to set up the transmitter is divided by 1.001 to
+	make it compatible with NTSC framerates. If the transmitter can't
+	generate such frequencies, then the flag will be cleared.
+
+	If a video receiver detects that the format uses a reduced framerate,
+	then it will set this flag to signal this to the application.
+    * - ``V4L2_DV_FL_HALF_LINE``
+      - Specific to interlaced formats: if set, then the vertical
+	frontporch of field 1 (aka the odd field) is really one half-line
+	longer and the vertical backporch of field 2 (aka the even field)
+	is really one half-line shorter, so each field has exactly the
+	same number of half-lines. Whether half-lines can be detected or
+	used depends on the hardware.
+    * - ``V4L2_DV_FL_IS_CE_VIDEO``
+      - If set, then this is a Consumer Electronics (CE) video format.
+	Such formats differ from other formats (commonly called IT
+	formats) in that if R'G'B' encoding is used then by default the
+	R'G'B' values use limited range (i.e. 16-235) as opposed to full
+	range (i.e. 0-255). All formats defined in CEA-861 except for the
+	640x480p59.94 format are CE formats.
+    * - ``V4L2_DV_FL_FIRST_FIELD_EXTRA_LINE``
+      - Some formats like SMPTE-125M have an interlaced signal with a odd
+	total height. For these formats, if this flag is set, the first
+	field has the extra line. Else, it is the second field.
+    * - ``V4L2_DV_FL_HAS_PICTURE_ASPECT``
+      - If set, then the picture_aspect field is valid. Otherwise assume that
+        the pixels are square, so the picture aspect ratio is the same as the
+	width to height ratio.
+    * - ``V4L2_DV_FL_HAS_CEA861_VIC``
+      - If set, then the cea861_vic field is valid and contains the Video
+        Identification Code as per the CEA-861 standard.
+    * - ``V4L2_DV_FL_HAS_HDMI_VIC``
+      - If set, then the hdmi_vic field is valid and contains the Video
+        Identification Code as per the HDMI standard (HDMI Vendor Specific
+	InfoFrame).
+    * - ``V4L2_DV_FL_CAN_DETECT_REDUCED_FPS``
+      - CEA-861 specific: only valid for video receivers, the flag is
+        cleared by transmitters.
+        If set, then the hardware can detect the difference between
+	regular framerates and framerates reduced by 1000/1001. E.g.:
+	60 vs 59.94 Hz, 30 vs 29.97 Hz or 24 vs 23.976 Hz.