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, 242 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-mtd b/Documentation/ABI/testing/sysfs-class-mtd
new file mode 100644
index 000000000..3bc7c0a95
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-mtd
@@ -0,0 +1,242 @@
+What:		/sys/class/mtd/
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		The mtd/ class subdirectory belongs to the MTD subsystem
+		(MTD core).
+
+What:		/sys/class/mtd/mtdX/
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		The /sys/class/mtd/mtd{0,1,2,3,...} directories correspond
+		to each /dev/mtdX character device.  These may represent
+		physical/simulated flash devices, partitions on a flash
+		device, or concatenated flash devices.
+
+What:		/sys/class/mtd/mtdXro/
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		These directories provide the corresponding read-only device
+		nodes for /sys/class/mtd/mtdX/ .
+
+What:		/sys/class/mtd/mtdX/dev
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		Major and minor numbers of the character device corresponding
+		to this MTD device (in <major>:<minor> format).  This is the
+		read-write device so <minor> will be even.
+
+What:		/sys/class/mtd/mtdXro/dev
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		Major and minor numbers of the character device corresponding
+		to the read-only variant of thie MTD device (in
+		<major>:<minor> format).  In this case <minor> will be odd.
+
+What:		/sys/class/mtd/mtdX/erasesize
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		"Major" erase size for the device.  If numeraseregions is
+		zero, this is the eraseblock size for the entire device.
+		Otherwise, the MEMGETREGIONCOUNT/MEMGETREGIONINFO ioctls
+		can be used to determine the actual eraseblock layout.
+
+What:		/sys/class/mtd/mtdX/flags
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		A hexadecimal value representing the device flags, ORed
+		together:
+
+		0x0400: MTD_WRITEABLE - device is writable
+		0x0800: MTD_BIT_WRITEABLE - single bits can be flipped
+		0x1000: MTD_NO_ERASE - no erase necessary
+		0x2000: MTD_POWERUP_LOCK - always locked after reset
+
+What:		/sys/class/mtd/mtdX/name
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		A human-readable ASCII name for the device or partition.
+		This will match the name in /proc/mtd .
+
+What:		/sys/class/mtd/mtdX/numeraseregions
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		For devices that have variable eraseblock sizes, this
+		provides the total number of erase regions.  Otherwise,
+		it will read back as zero.
+
+What:		/sys/class/mtd/mtdX/oobsize
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		Number of OOB bytes per page.
+
+What:		/sys/class/mtd/mtdX/size
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		Total size of the device/partition, in bytes.
+
+What:		/sys/class/mtd/mtdX/type
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		One of the following ASCII strings, representing the device
+		type:
+
+		absent, ram, rom, nor, nand, mlc-nand, dataflash, ubi, unknown
+
+What:		/sys/class/mtd/mtdX/writesize
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		Minimal writable flash unit size.  This will always be
+		a positive integer.
+
+		In the case of NOR flash it is 1 (even though individual
+		bits can be cleared).
+
+		In the case of NAND flash it is one NAND page (or a
+		half page, or a quarter page).
+
+		In the case of ECC NOR, it is the ECC block size.
+
+What:		/sys/class/mtd/mtdX/ecc_strength
+Date:		April 2012
+KernelVersion:	3.4
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		Maximum number of bit errors that the device is capable of
+		correcting within each region covering an ECC step (see
+		ecc_step_size).  This will always be a non-negative integer.
+
+		In the case of devices lacking any ECC capability, it is 0.
+
+What:		/sys/class/mtd/mtdX/bitflip_threshold
+Date:		April 2012
+KernelVersion:	3.4
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		This allows the user to examine and adjust the criteria by which
+		mtd returns -EUCLEAN from mtd_read() and mtd_read_oob().  If the
+		maximum number of bit errors that were corrected on any single
+		region comprising an ecc step (as reported by the driver) equals
+		or exceeds this value, -EUCLEAN is returned.  Otherwise, absent
+		an error, 0 is returned.  Higher layers (e.g., UBI) use this
+		return code as an indication that an erase block may be
+		degrading and should be scrutinized as a candidate for being
+		marked as bad.
+
+		The initial value may be specified by the flash device driver.
+		If not, then the default value is ecc_strength.
+
+		The introduction of this feature brings a subtle change to the
+		meaning of the -EUCLEAN return code.  Previously, it was
+		interpreted to mean simply "one or more bit errors were
+		corrected".  Its new interpretation can be phrased as "a
+		dangerously high number of bit errors were corrected on one or
+		more regions comprising an ecc step".  The precise definition of
+		"dangerously high" can be adjusted by the user with
+		bitflip_threshold.  Users are discouraged from doing this,
+		however, unless they know what they are doing and have intimate
+		knowledge of the properties of their device.  Broadly speaking,
+		bitflip_threshold should be low enough to detect genuine erase
+		block degradation, but high enough to avoid the consequences of
+		a persistent return value of -EUCLEAN on devices where sticky
+		bitflips occur.  Note that if bitflip_threshold exceeds
+		ecc_strength, -EUCLEAN is never returned by the read operations.
+		Conversely, if bitflip_threshold is zero, -EUCLEAN is always
+		returned, absent a hard error.
+
+		This is generally applicable only to NAND flash devices with ECC
+		capability.  It is ignored on devices lacking ECC capability;
+		i.e., devices for which ecc_strength is zero.
+
+What:		/sys/class/mtd/mtdX/ecc_step_size
+Date:		May 2013
+KernelVersion:	3.10
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		The size of a single region covered by ECC, known as the ECC
+		step.  Devices may have several equally sized ECC steps within
+		each writesize region.
+
+		It will always be a non-negative integer.  In the case of
+		devices lacking any ECC capability, it is 0.
+
+What:		/sys/class/mtd/mtdX/ecc_failures
+Date:		June 2014
+KernelVersion:	3.17
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		The number of failures reported by this device's ECC. Typically,
+		these failures are associated with failed read operations.
+
+		It will always be a non-negative integer.  In the case of
+		devices lacking any ECC capability, it is 0.
+
+What:		/sys/class/mtd/mtdX/corrected_bits
+Date:		June 2014
+KernelVersion:	3.17
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		The number of bits that have been corrected by means of the
+		device's ECC.
+
+		It will always be a non-negative integer.  In the case of
+		devices lacking any ECC capability, it is 0.
+
+What:		/sys/class/mtd/mtdX/bad_blocks
+Date:		June 2014
+KernelVersion:	3.17
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		The number of blocks marked as bad, if any, in this partition.
+
+What:		/sys/class/mtd/mtdX/bbt_blocks
+Date:		June 2014
+KernelVersion:	3.17
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		The number of blocks that are marked as reserved, if any, in
+		this partition. These are typically used to store the in-flash
+		bad block table (BBT).
+
+What:		/sys/class/mtd/mtdX/offset
+Date:		March 2015
+KernelVersion:	4.1
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		For a partition, the offset of that partition from the start
+		of the parent (another partition or a flash device) in bytes.
+		This attribute is absent on flash devices, so it can be used
+		to distinguish them from partitions.
+
+What:		/sys/class/mtd/mtdX/oobavail
+Date:		April 2018
+KernelVersion:	4.16
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		Number of bytes available for a client to place data into
+		the out of band area.