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, 160 insertions, 0 deletions

diff --git a/Documentation/fb/sisfb.rst b/Documentation/fb/sisfb.rst
new file mode 100644
index 000000000..8f4e502ea
--- /dev/null
+++ b/Documentation/fb/sisfb.rst
@@ -0,0 +1,160 @@
+==============
+What is sisfb?
+==============
+
+sisfb is a framebuffer device driver for SiS (Silicon Integrated Systems)
+graphics chips. Supported are:
+
+- SiS 300 series: SiS 300/305, 540, 630(S), 730(S)
+- SiS 315 series: SiS 315/H/PRO, 55x, (M)65x, 740, (M)661(F/M)X, (M)741(GX)
+- SiS 330 series: SiS 330 ("Xabre"), (M)760
+
+
+Why do I need a framebuffer driver?
+===================================
+
+sisfb is eg. useful if you want a high-resolution text console. Besides that,
+sisfb is required to run DirectFB (which comes with an additional, dedicated
+driver for the 315 series).
+
+On the 300 series, sisfb on kernels older than 2.6.3 furthermore plays an
+important role in connection with DRM/DRI: Sisfb manages the memory heap
+used by DRM/DRI for 3D texture and other data. This memory management is
+required for using DRI/DRM.
+
+Kernels >= around 2.6.3 do not need sisfb any longer for DRI/DRM memory
+management. The SiS DRM driver has been updated and features a memory manager
+of its own (which will be used if sisfb is not compiled). So unless you want
+a graphical console, you don't need sisfb on kernels >=2.6.3.
+
+Sidenote: Since this seems to be a commonly made mistake: sisfb and vesafb
+cannot be active at the same time! Do only select one of them in your kernel
+configuration.
+
+
+How are parameters passed to sisfb?
+===================================
+
+Well, it depends: If compiled statically into the kernel, use lilo's append
+statement to add the parameters to the kernel command line. Please see lilo's
+(or GRUB's) documentation for more information. If sisfb is a kernel module,
+parameters are given with the modprobe (or insmod) command.
+
+Example for sisfb as part of the static kernel: Add the following line to your
+lilo.conf::
+
+     append="video=sisfb:mode:1024x768x16,mem:12288,rate:75"
+
+Example for sisfb as a module: Start sisfb by typing::
+
+     modprobe sisfb mode=1024x768x16 rate=75 mem=12288
+
+A common mistake is that folks use a wrong parameter format when using the
+driver compiled into the kernel. Please note: If compiled into the kernel,
+the parameter format is video=sisfb:mode:none or video=sisfb:mode:1024x768x16
+(or whatever mode you want to use, alternatively using any other format
+described above or the vesa keyword instead of mode). If compiled as a module,
+the parameter format reads mode=none or mode=1024x768x16 (or whatever mode you
+want to use). Using a "=" for a ":" (and vice versa) is a huge difference!
+Additionally: If you give more than one argument to the in-kernel sisfb, the
+arguments are separated with ",". For example::
+
+   video=sisfb:mode:1024x768x16,rate:75,mem:12288
+
+
+How do I use it?
+================
+
+Preface statement: This file only covers very little of the driver's
+capabilities and features. Please refer to the author's and maintainer's
+website at http://www.winischhofer.net/linuxsisvga.shtml for more
+information. Additionally, "modinfo sisfb" gives an overview over all
+supported options including some explanation.
+
+The desired display mode can be specified using the keyword "mode" with
+a parameter in one of the following formats:
+
+  - XxYxDepth or
+  - XxY-Depth or
+  - XxY-Depth@Rate or
+  - XxY
+  - or simply use the VESA mode number in hexadecimal or decimal.
+
+For example: 1024x768x16, 1024x768-16@75, 1280x1024-16. If no depth is
+specified, it defaults to 8. If no rate is given, it defaults to 60Hz. Depth 32
+means 24bit color depth (but 32 bit framebuffer depth, which is not relevant
+to the user).
+
+Additionally, sisfb understands the keyword "vesa" followed by a VESA mode
+number in decimal or hexadecimal. For example: vesa=791 or vesa=0x117. Please
+use either "mode" or "vesa" but not both.
+
+Linux 2.4 only: If no mode is given, sisfb defaults to "no mode" (mode=none) if
+compiled as a module; if sisfb is statically compiled into the kernel, it
+defaults to 800x600x8 unless CRT2 type is LCD, in which case the LCD's native
+resolution is used. If you want to switch to a different mode, use the fbset
+shell command.
+
+Linux 2.6 only: If no mode is given, sisfb defaults to 800x600x8 unless CRT2
+type is LCD, in which case it defaults to the LCD's native resolution. If
+you want to switch to another mode, use the stty shell command.
+
+You should compile in both vgacon (to boot if you remove you SiS card from
+your system) and sisfb (for graphics mode). Under Linux 2.6, also "Framebuffer
+console support" (fbcon) is needed for a graphical console.
+
+You should *not* compile-in vesafb. And please do not use the "vga=" keyword
+in lilo's or grub's configuration file; mode selection is done using the
+"mode" or "vesa" keywords as a parameter. See above and below.
+
+
+X11
+===
+
+If using XFree86 or X.org, it is recommended that you don't use the "fbdev"
+driver but the dedicated "sis" X driver. The "sis" X driver and sisfb are
+developed by the same person (Thomas Winischhofer) and cooperate well with
+each other.
+
+
+SVGALib
+=======
+
+SVGALib, if directly accessing the hardware, never restores the screen
+correctly, especially on laptops or if the output devices are LCD or TV.
+Therefore, use the chipset "FBDEV" in SVGALib configuration. This will make
+SVGALib use the framebuffer device for mode switches and restoration.
+
+
+Configuration
+=============
+
+(Some) accepted options:
+
+=========  ==================================================================
+off        Disable sisfb. This option is only understood if sisfb is
+	   in-kernel, not a module.
+mem:X      size of memory for the console, rest will be used for DRI/DRM. X
+	   is in kilobytes. On 300 series, the default is 4096, 8192 or
+	   16384 (each in kilobyte) depending on how much video ram the card
+	   has. On 315/330 series, the default is the maximum available ram
+	   (since DRI/DRM is not supported for these chipsets).
+noaccel    do not use 2D acceleration engine. (Default: use acceleration)
+noypan     disable y-panning and scroll by redrawing the entire screen.
+	   This is much slower than y-panning. (Default: use y-panning)
+vesa:X     selects startup videomode. X is number from 0 to 0x1FF and
+	   represents the VESA mode number (can be given in decimal or
+	   hexadecimal form, the latter prefixed with "0x").
+mode:X     selects startup videomode. Please see above for the format of
+	   "X".
+=========  ==================================================================
+
+Boolean options such as "noaccel" or "noypan" are to be given without a
+parameter if sisfb is in-kernel (for example "video=sisfb:noypan). If
+sisfb is a module, these are to be set to 1 (for example "modprobe sisfb
+noypan=1").
+
+
+Thomas Winischhofer <thomas@winischhofer.net>
+
+May 27, 2004