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, 409 insertions, 0 deletions

diff --git a/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst
new file mode 100644
index 000000000..bf283a1b5
--- /dev/null
+++ b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst
@@ -0,0 +1,409 @@
+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+
+.. _packed-yuv:
+
+******************
+Packed YUV formats
+******************
+
+Similarly to the packed RGB formats, the packed YUV formats store the Y, Cb and
+Cr components consecutively in memory. They may apply subsampling to the chroma
+components and thus differ in how they interlave the three components.
+
+.. note::
+
+   - In all the tables that follow, bit 7 is the most significant bit in a byte.
+   - 'Y', 'Cb' and 'Cr' denote bits of the luma, blue chroma (also known as
+     'U') and red chroma (also known as 'V') components respectively. 'A'
+     denotes bits of the alpha component (if supported by the format), and 'X'
+     denotes padding bits.
+
+
+4:4:4 Subsampling
+=================
+
+These formats do not subsample the chroma components and store each pixels as a
+full triplet of Y, Cb and Cr values.
+
+The next table lists the packed YUV 4:4:4 formats with less than 8 bits per
+component. They are named based on the order of the Y, Cb and Cr components as
+seen in a 16-bit word, which is then stored in memory in little endian byte
+order, and on the number of bits for each component. For instance the YUV565
+format stores a pixel in a 16-bit word [15:0] laid out at as [Y'\ :sub:`4-0`
+Cb\ :sub:`5-0` Cr\ :sub:`4-0`], and stored in memory in two bytes,
+[Cb\ :sub:`2-0` Cr\ :sub:`4-0`] followed by [Y'\ :sub:`4-0` Cb\ :sub:`5-3`].
+
+.. raw:: latex
+
+    \begingroup
+    \scriptsize
+    \setlength{\tabcolsep}{2pt}
+
+.. tabularcolumns:: |p{3.5cm}|p{0.96cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|p{0.52cm}|
+
+.. flat-table:: Packed YUV 4:4:4 Image Formats (less than 8bpc)
+    :header-rows:  2
+    :stub-columns: 0
+
+    * - Identifier
+      - Code
+
+      - :cspan:`7` Byte 0 in memory
+
+      - :cspan:`7` Byte 1
+
+    * -
+      -
+      - 7
+      - 6
+      - 5
+      - 4
+      - 3
+      - 2
+      - 1
+      - 0
+
+      - 7
+      - 6
+      - 5
+      - 4
+      - 3
+      - 2
+      - 1
+      - 0
+
+    * .. _V4L2-PIX-FMT-YUV444:
+
+      - ``V4L2_PIX_FMT_YUV444``
+      - 'Y444'
+
+      - Cb\ :sub:`3`
+      - Cb\ :sub:`2`
+      - Cb\ :sub:`1`
+      - Cb\ :sub:`0`
+      - Cr\ :sub:`3`
+      - Cr\ :sub:`2`
+      - Cr\ :sub:`1`
+      - Cr\ :sub:`0`
+
+      - a\ :sub:`3`
+      - a\ :sub:`2`
+      - a\ :sub:`1`
+      - a\ :sub:`0`
+      - Y'\ :sub:`3`
+      - Y'\ :sub:`2`
+      - Y'\ :sub:`1`
+      - Y'\ :sub:`0`
+
+    * .. _V4L2-PIX-FMT-YUV555:
+
+      - ``V4L2_PIX_FMT_YUV555``
+      - 'YUVO'
+
+      - Cb\ :sub:`2`
+      - Cb\ :sub:`1`
+      - Cb\ :sub:`0`
+      - Cr\ :sub:`4`
+      - Cr\ :sub:`3`
+      - Cr\ :sub:`2`
+      - Cr\ :sub:`1`
+      - Cr\ :sub:`0`
+
+      - a
+      - Y'\ :sub:`4`
+      - Y'\ :sub:`3`
+      - Y'\ :sub:`2`
+      - Y'\ :sub:`1`
+      - Y'\ :sub:`0`
+      - Cb\ :sub:`4`
+      - Cb\ :sub:`3`
+
+    * .. _V4L2-PIX-FMT-YUV565:
+
+      - ``V4L2_PIX_FMT_YUV565``
+      - 'YUVP'
+
+      - Cb\ :sub:`2`
+      - Cb\ :sub:`1`
+      - Cb\ :sub:`0`
+      - Cr\ :sub:`4`
+      - Cr\ :sub:`3`
+      - Cr\ :sub:`2`
+      - Cr\ :sub:`1`
+      - Cr\ :sub:`0`
+
+      - Y'\ :sub:`4`
+      - Y'\ :sub:`3`
+      - Y'\ :sub:`2`
+      - Y'\ :sub:`1`
+      - Y'\ :sub:`0`
+      - Cb\ :sub:`5`
+      - Cb\ :sub:`4`
+      - Cb\ :sub:`3`
+
+.. raw:: latex
+
+    \endgroup
+
+.. note::
+
+    For the YUV444 and YUV555 formats, the value of alpha bits is undefined
+    when reading from the driver, ignored when writing to the driver, except
+    when alpha blending has been negotiated for a :ref:`Video Overlay
+    <overlay>` or :ref:`Video Output Overlay <osd>`.
+
+
+The next table lists the packed YUV 4:4:4 formats with 8 bits per component.
+They are named based on the order of the Y, Cb and Cr components as stored in
+memory, and on the total number of bits per pixel. For instance, the VUYX32
+format stores a pixel with Cr\ :sub:`7-0` in the first byte, Cb\ :sub:`7-0` in
+the second byte and Y'\ :sub:`7-0` in the third byte.
+
+.. flat-table:: Packed YUV Image Formats (8bpc)
+    :header-rows: 1
+    :stub-columns: 0
+
+    * - Identifier
+      - Code
+      - Byte 0
+      - Byte 1
+      - Byte 2
+      - Byte 3
+
+    * .. _V4L2-PIX-FMT-YUV32:
+
+      - ``V4L2_PIX_FMT_YUV32``
+      - 'YUV4'
+
+      - A\ :sub:`7-0`
+      - Y'\ :sub:`7-0`
+      - Cb\ :sub:`7-0`
+      - Cr\ :sub:`7-0`
+
+    * .. _V4L2-PIX-FMT-AYUV32:
+
+      - ``V4L2_PIX_FMT_AYUV32``
+      - 'AYUV'
+
+      - A\ :sub:`7-0`
+      - Y'\ :sub:`7-0`
+      - Cb\ :sub:`7-0`
+      - Cr\ :sub:`7-0`
+
+    * .. _V4L2-PIX-FMT-XYUV32:
+
+      - ``V4L2_PIX_FMT_XYUV32``
+      - 'XYUV'
+
+      - X\ :sub:`7-0`
+      - Y'\ :sub:`7-0`
+      - Cb\ :sub:`7-0`
+      - Cr\ :sub:`7-0`
+
+    * .. _V4L2-PIX-FMT-VUYA32:
+
+      - ``V4L2_PIX_FMT_VUYA32``
+      - 'VUYA'
+
+      - Cr\ :sub:`7-0`
+      - Cb\ :sub:`7-0`
+      - Y'\ :sub:`7-0`
+      - A\ :sub:`7-0`
+
+    * .. _V4L2-PIX-FMT-VUYX32:
+
+      - ``V4L2_PIX_FMT_VUYX32``
+      - 'VUYX'
+
+      - Cr\ :sub:`7-0`
+      - Cb\ :sub:`7-0`
+      - Y'\ :sub:`7-0`
+      - X\ :sub:`7-0`
+
+    * .. _V4L2-PIX-FMT-YUVA32:
+
+      - ``V4L2_PIX_FMT_YUVA32``
+      - 'YUVA'
+
+      - Y'\ :sub:`7-0`
+      - Cb\ :sub:`7-0`
+      - Cr\ :sub:`7-0`
+      - A\ :sub:`7-0`
+
+    * .. _V4L2-PIX-FMT-YUVX32:
+
+      - ``V4L2_PIX_FMT_YUVX32``
+      - 'YUVX'
+
+      - Y'\ :sub:`7-0`
+      - Cb\ :sub:`7-0`
+      - Cr\ :sub:`7-0`
+      - X\ :sub:`7-0`
+
+    * .. _V4L2-PIX-FMT-YUV24:
+
+      - ``V4L2_PIX_FMT_YUV24``
+      - 'YUV3'
+
+      - Y'\ :sub:`7-0`
+      - Cb\ :sub:`7-0`
+      - Cr\ :sub:`7-0`
+      - -\
+
+.. note::
+
+    - The alpha component is expected to contain a meaningful value that can be
+      used by drivers and applications.
+    - The padding bits contain undefined values that must be ignored by all
+      applications and drivers.
+
+
+4:2:2 Subsampling
+=================
+
+These formats, commonly referred to as YUYV or YUY2, subsample the chroma
+components horizontally by 2, storing 2 pixels in 4 bytes.
+
+.. raw:: latex
+
+    \footnotesize
+
+.. tabularcolumns:: |p{3.4cm}|p{1.2cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|p{0.8cm}|
+
+.. flat-table:: Packed YUV 4:2:2 Formats
+    :header-rows: 1
+    :stub-columns: 0
+
+    * - Identifier
+      - Code
+      - Byte 0
+      - Byte 1
+      - Byte 2
+      - Byte 3
+      - Byte 4
+      - Byte 5
+      - Byte 6
+      - Byte 7
+    * .. _V4L2-PIX-FMT-UYVY:
+
+      - ``V4L2_PIX_FMT_UYVY``
+      - 'UYVY'
+
+      - Cb\ :sub:`0`
+      - Y'\ :sub:`0`
+      - Cr\ :sub:`0`
+      - Y'\ :sub:`1`
+      - Cb\ :sub:`2`
+      - Y'\ :sub:`2`
+      - Cr\ :sub:`2`
+      - Y'\ :sub:`3`
+    * .. _V4L2-PIX-FMT-VYUY:
+
+      - ``V4L2_PIX_FMT_VYUY``
+      - 'VYUY'
+
+      - Cr\ :sub:`0`
+      - Y'\ :sub:`0`
+      - Cb\ :sub:`0`
+      - Y'\ :sub:`1`
+      - Cr\ :sub:`2`
+      - Y'\ :sub:`2`
+      - Cb\ :sub:`2`
+      - Y'\ :sub:`3`
+    * .. _V4L2-PIX-FMT-YUYV:
+
+      - ``V4L2_PIX_FMT_YUYV``
+      - 'YUYV'
+
+      - Y'\ :sub:`0`
+      - Cb\ :sub:`0`
+      - Y'\ :sub:`1`
+      - Cr\ :sub:`0`
+      - Y'\ :sub:`2`
+      - Cb\ :sub:`2`
+      - Y'\ :sub:`3`
+      - Cr\ :sub:`2`
+    * .. _V4L2-PIX-FMT-YVYU:
+
+      - ``V4L2_PIX_FMT_YVYU``
+      - 'YVYU'
+
+      - Y'\ :sub:`0`
+      - Cr\ :sub:`0`
+      - Y'\ :sub:`1`
+      - Cb\ :sub:`0`
+      - Y'\ :sub:`2`
+      - Cr\ :sub:`2`
+      - Y'\ :sub:`3`
+      - Cb\ :sub:`2`
+
+.. raw:: latex
+
+    \normalsize
+
+**Color Sample Location:**
+Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>`
+horizontally.
+
+
+4:1:1 Subsampling
+=================
+
+This format subsamples the chroma components horizontally by 4, storing 8
+pixels in 12 bytes.
+
+.. raw:: latex
+
+    \scriptsize
+
+.. tabularcolumns:: |p{2.9cm}|p{0.8cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|p{0.5cm}|
+
+.. flat-table:: Packed YUV 4:1:1 Formats
+    :header-rows: 1
+    :stub-columns: 0
+
+    * - Identifier
+      - Code
+      - Byte 0
+      - Byte 1
+      - Byte 2
+      - Byte 3
+      - Byte 4
+      - Byte 5
+      - Byte 6
+      - Byte 7
+      - Byte 8
+      - Byte 9
+      - Byte 10
+      - Byte 11
+    * .. _V4L2-PIX-FMT-Y41P:
+
+      - ``V4L2_PIX_FMT_Y41P``
+      - 'Y41P'
+
+      - Cb\ :sub:`0`
+      - Y'\ :sub:`0`
+      - Cr\ :sub:`0`
+      - Y'\ :sub:`1`
+      - Cb\ :sub:`4`
+      - Y'\ :sub:`2`
+      - Cr\ :sub:`4`
+      - Y'\ :sub:`3`
+      - Y'\ :sub:`4`
+      - Y'\ :sub:`5`
+      - Y'\ :sub:`6`
+      - Y'\ :sub:`7`
+
+.. raw:: latex
+
+    \normalsize
+
+.. note::
+
+    Do not confuse ``V4L2_PIX_FMT_Y41P`` with
+    :ref:`V4L2_PIX_FMT_YUV411P <V4L2-PIX-FMT-YUV411P>`. Y41P is derived from
+    "YUV 4:1:1 **packed**", while YUV411P stands for "YUV 4:1:1 **planar**".
+
+**Color Sample Location:**
+Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>`
+horizontally.