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, 187 insertions, 0 deletions

diff --git a/Documentation/translations/zh_CN/doc-guide/parse-headers.rst b/Documentation/translations/zh_CN/doc-guide/parse-headers.rst
new file mode 100644
index 000000000..a08819e90
--- /dev/null
+++ b/Documentation/translations/zh_CN/doc-guide/parse-headers.rst
@@ -0,0 +1,187 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/doc-guide/parse-headers.rst
+
+:译者: 吴想成 Wu XiangCheng <bobwxc@email.cn>
+
+=====================
+包含用户空间API头文件
+=====================
+
+有时，为了描述用户空间API并在代码和文档之间生成交叉引用，需要包含头文件和示例
+C代码。为用户空间API文件添加交叉引用还有一个好处：如果在文档中找不到相应符号，
+Sphinx将生成警告。这有助于保持用户空间API文档与内核更改同步。
+:ref:`parse_headers.pl <parse_headers_zh>` 提供了生成此类交叉引用的一种方法。
+在构建文档时，必须通过Makefile调用它。有关如何在内核树中使用它的示例，请参阅
+``Documentation/userspace-api/media/Makefile`` 。
+
+.. _parse_headers_zh:
+
+parse_headers.pl
+----------------
+
+脚本名称
+~~~~~~~~
+
+
+parse_headers.pl——解析一个C文件，识别函数、结构体、枚举、定义并对Sphinx文档
+创建交叉引用。
+
+
+用法概要
+~~~~~~~~
+
+
+\ **parse_headers.pl**\  [<选项>] <C文件> <输出文件> [<例外文件>]
+
+<选项> 可以是： --debug, --help 或 --usage 。
+
+
+选项
+~~~~
+
+
+
+\ **--debug**\
+
+ 开启脚本详细模式，在调试时很有用。
+
+
+\ **--usage**\
+
+ 打印简短的帮助信息并退出。
+
+
+
+\ **--help**\
+
+ 打印更详细的帮助信息并退出。
+
+
+说明
+~~~~
+
+通过C头文件或源文件（<C文件>）中为描述API的文档编写的带交叉引用的 ..预格式化
+文本 块将文件转换成重构文本（RST）。它接受一个可选的<例外文件>，其中描述了
+哪些元素将被忽略或指向非默认引用。
+
+输出被写入到<输出文件>。
+
+它能够识别定义、函数、结构体、typedef、枚举和枚举符号，并为它们创建交叉引用。
+它还能够区分用于指定Linux ioctl的 ``#define`` 。
+
+<例外文件> 包含两种类型的语句： \ **ignore**\  或 \ **replace**\ .
+
+ignore标记的语法为：
+
+
+ignore \ **type**\  \ **name**\
+
+The \ **ignore**\  意味着它不会为类型为 \ **type**\ 的 \ **name**\ 符号生成
+交叉引用。
+
+
+replace标记的语法为：
+
+
+replace \ **type**\  \ **name**\  \ **new_value**\
+
+The \ **replace**\  味着它将为 \ **type**\ 类型的 \ **name**\ 符号生成交叉引
+用，但是它将使用 \ **new_value**\ 来取代默认的替换规则。
+
+
+这两种语句中， \ **type**\ 可以是以下任一项：
+
+
+\ **ioctl**\
+
+ ignore 或 replace 语句应用于ioctl定义，如：
+
+ #define	VIDIOC_DBG_S_REGISTER 	 _IOW('V', 79, struct v4l2_dbg_register)
+
+
+
+\ **define**\
+
+ ignore 或 replace 语句应用于在<C文件>中找到的任何其他 ``#define`` 。
+
+
+
+\ **typedef**\
+
+ ignore 和 replace 语句应用于<C文件>中的typedef语句。
+
+
+
+\ **struct**\
+
+ ignore 和 replace 语句应用于<C文件>中的结构体名称语句。
+
+
+
+\ **enum**\
+
+ ignore 和 replace 语句应用于<C文件>中的枚举名称语句。
+
+
+
+\ **symbol**\
+
+ ignore 和 replace 语句应用于<C文件>中的枚举值名称语句。
+
+ replace语句中， \ **new_value**\  会自动使用 \ **typedef**\ , \ **enum**\
+ 和 \ **struct**\ 类型的 :c:type: 引用；以及 \ **ioctl**\ , \ **define**\  和
+ \ **symbol**\ 类型的  :ref: 。引用的类型也可以在replace语句中显式定义。
+
+
+示例
+~~~~
+
+
+ignore define _VIDEODEV2_H
+
+
+忽略<C文件>中的 #define _VIDEODEV2_H 。
+
+ignore symbol PRIVATE
+
+
+如下结构体：
+
+enum foo { BAR1, BAR2, PRIVATE };
+
+不会为 \ **PRIVATE**\ 生成交叉引用。
+
+replace symbol BAR1 :c:type:\`foo\`
+replace symbol BAR2 :c:type:\`foo\`
+
+
+如下结构体：
+
+enum foo { BAR1, BAR2, PRIVATE };
+
+它会让BAR1和BAR2枚举符号交叉引用C域中的foo符号。
+
+
+
+缺陷
+~~~~
+
+
+请向Mauro Carvalho Chehab <mchehab@kernel.org>报告有关缺陷。
+
+中文翻译问题请找中文翻译维护者。
+
+
+版权
+~~~~
+
+
+版权所有 (c) 2016 Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
+
+许可证 GPLv2：GNU GPL version 2 <https://gnu.org/licenses/gpl.html>
+
+这是自由软件：你可以自由地修改和重新发布它。
+在法律允许的范围内，**不提供任何保证**。