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, 331 insertions, 0 deletions

diff --git a/arch/arm/lib/csumpartialcopygeneric.S b/arch/arm/lib/csumpartialcopygeneric.S
new file mode 100644
index 000000000..0fd5c10e9
--- /dev/null
+++ b/arch/arm/lib/csumpartialcopygeneric.S
@@ -0,0 +1,331 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  linux/arch/arm/lib/csumpartialcopygeneric.S
+ *
+ *  Copyright (C) 1995-2001 Russell King
+ */
+#include <asm/assembler.h>
+
+/*
+ * unsigned int
+ * csum_partial_copy_xxx(const char *src, char *dst, int len, int sum, )
+ *  r0 = src, r1 = dst, r2 = len, r3 = sum
+ *  Returns : r0 = checksum
+ *
+ * Note that 'tst' and 'teq' preserve the carry flag.
+ */
+
+src	.req	r0
+dst	.req	r1
+len	.req	r2
+sum	.req	r3
+
+.Lzero:		mov	r0, sum
+		load_regs
+
+		/*
+		 * Align an unaligned destination pointer.  We know that
+		 * we have >= 8 bytes here, so we don't need to check
+		 * the length.  Note that the source pointer hasn't been
+		 * aligned yet.
+		 */
+.Ldst_unaligned:
+		tst	dst, #1
+		beq	.Ldst_16bit
+
+		load1b	ip
+		sub	len, len, #1
+		adcs	sum, sum, ip, put_byte_1	@ update checksum
+		strb	ip, [dst], #1
+		tst	dst, #2
+		reteq	lr			@ dst is now 32bit aligned
+
+.Ldst_16bit:	load2b	r8, ip
+		sub	len, len, #2
+		adcs	sum, sum, r8, put_byte_0
+		strb	r8, [dst], #1
+		adcs	sum, sum, ip, put_byte_1
+		strb	ip, [dst], #1
+		ret	lr			@ dst is now 32bit aligned
+
+		/*
+		 * Handle 0 to 7 bytes, with any alignment of source and
+		 * destination pointers.  Note that when we get here, C = 0
+		 */
+.Lless8:	teq	len, #0			@ check for zero count
+		beq	.Lzero
+
+		/* we must have at least one byte. */
+		tst	dst, #1			@ dst 16-bit aligned
+		beq	.Lless8_aligned
+
+		/* Align dst */
+		load1b	ip
+		sub	len, len, #1
+		adcs	sum, sum, ip, put_byte_1	@ update checksum
+		strb	ip, [dst], #1
+		tst	len, #6
+		beq	.Lless8_byteonly
+
+1:		load2b	r8, ip
+		sub	len, len, #2
+		adcs	sum, sum, r8, put_byte_0
+		strb	r8, [dst], #1
+		adcs	sum, sum, ip, put_byte_1
+		strb	ip, [dst], #1
+.Lless8_aligned:
+		tst	len, #6
+		bne	1b
+.Lless8_byteonly:
+		tst	len, #1
+		beq	.Ldone
+		load1b	r8
+		adcs	sum, sum, r8, put_byte_0	@ update checksum
+		strb	r8, [dst], #1
+		b	.Ldone
+
+FN_ENTRY
+		save_regs
+		mov	sum, #-1
+
+		cmp	len, #8			@ Ensure that we have at least
+		blo	.Lless8			@ 8 bytes to copy.
+
+		adds	sum, sum, #0		@ C = 0
+		tst	dst, #3			@ Test destination alignment
+		blne	.Ldst_unaligned		@ align destination, return here
+
+		/*
+		 * Ok, the dst pointer is now 32bit aligned, and we know
+		 * that we must have more than 4 bytes to copy.  Note
+		 * that C contains the carry from the dst alignment above.
+		 */
+
+		tst	src, #3			@ Test source alignment
+		bne	.Lsrc_not_aligned
+
+		/* Routine for src & dst aligned */
+
+		bics	ip, len, #15
+		beq	2f
+
+1:		load4l	r4, r5, r6, r7
+		stmia	dst!, {r4, r5, r6, r7}
+		adcs	sum, sum, r4
+		adcs	sum, sum, r5
+		adcs	sum, sum, r6
+		adcs	sum, sum, r7
+		sub	ip, ip, #16
+		teq	ip, #0
+		bne	1b
+
+2:		ands	ip, len, #12
+		beq	4f
+		tst	ip, #8
+		beq	3f
+		load2l	r4, r5
+		stmia	dst!, {r4, r5}
+		adcs	sum, sum, r4
+		adcs	sum, sum, r5
+		tst	ip, #4
+		beq	4f
+
+3:		load1l	r4
+		str	r4, [dst], #4
+		adcs	sum, sum, r4
+
+4:		ands	len, len, #3
+		beq	.Ldone
+		load1l	r4
+		tst	len, #2
+		mov	r5, r4, get_byte_0
+		beq	.Lexit
+		adcs	sum, sum, r4, lspush #16
+		strb	r5, [dst], #1
+		mov	r5, r4, get_byte_1
+		strb	r5, [dst], #1
+		mov	r5, r4, get_byte_2
+.Lexit:		tst	len, #1
+		strbne	r5, [dst], #1
+		andne	r5, r5, #255
+		adcsne	sum, sum, r5, put_byte_0
+
+		/*
+		 * If the dst pointer was not 16-bit aligned, we
+		 * need to rotate the checksum here to get around
+		 * the inefficient byte manipulations in the
+		 * architecture independent code.
+		 */
+.Ldone:		adc	r0, sum, #0
+		ldr	sum, [sp, #0]		@ dst
+		tst	sum, #1
+		movne	r0, r0, ror #8
+		load_regs
+
+.Lsrc_not_aligned:
+		adc	sum, sum, #0		@ include C from dst alignment
+		and	ip, src, #3
+		bic	src, src, #3
+		load1l	r5
+		cmp	ip, #2
+		beq	.Lsrc2_aligned
+		bhi	.Lsrc3_aligned
+		mov	r4, r5, lspull #8		@ C = 0
+		bics	ip, len, #15
+		beq	2f
+1:		load4l	r5, r6, r7, r8
+		orr	r4, r4, r5, lspush #24
+		mov	r5, r5, lspull #8
+		orr	r5, r5, r6, lspush #24
+		mov	r6, r6, lspull #8
+		orr	r6, r6, r7, lspush #24
+		mov	r7, r7, lspull #8
+		orr	r7, r7, r8, lspush #24
+		stmia	dst!, {r4, r5, r6, r7}
+		adcs	sum, sum, r4
+		adcs	sum, sum, r5
+		adcs	sum, sum, r6
+		adcs	sum, sum, r7
+		mov	r4, r8, lspull #8
+		sub	ip, ip, #16
+		teq	ip, #0
+		bne	1b
+2:		ands	ip, len, #12
+		beq	4f
+		tst	ip, #8
+		beq	3f
+		load2l	r5, r6
+		orr	r4, r4, r5, lspush #24
+		mov	r5, r5, lspull #8
+		orr	r5, r5, r6, lspush #24
+		stmia	dst!, {r4, r5}
+		adcs	sum, sum, r4
+		adcs	sum, sum, r5
+		mov	r4, r6, lspull #8
+		tst	ip, #4
+		beq	4f
+3:		load1l	r5
+		orr	r4, r4, r5, lspush #24
+		str	r4, [dst], #4
+		adcs	sum, sum, r4
+		mov	r4, r5, lspull #8
+4:		ands	len, len, #3
+		beq	.Ldone
+		mov	r5, r4, get_byte_0
+		tst	len, #2
+		beq	.Lexit
+		adcs	sum, sum, r4, lspush #16
+		strb	r5, [dst], #1
+		mov	r5, r4, get_byte_1
+		strb	r5, [dst], #1
+		mov	r5, r4, get_byte_2
+		b	.Lexit
+
+.Lsrc2_aligned:	mov	r4, r5, lspull #16
+		adds	sum, sum, #0
+		bics	ip, len, #15
+		beq	2f
+1:		load4l	r5, r6, r7, r8
+		orr	r4, r4, r5, lspush #16
+		mov	r5, r5, lspull #16
+		orr	r5, r5, r6, lspush #16
+		mov	r6, r6, lspull #16
+		orr	r6, r6, r7, lspush #16
+		mov	r7, r7, lspull #16
+		orr	r7, r7, r8, lspush #16
+		stmia	dst!, {r4, r5, r6, r7}
+		adcs	sum, sum, r4
+		adcs	sum, sum, r5
+		adcs	sum, sum, r6
+		adcs	sum, sum, r7
+		mov	r4, r8, lspull #16
+		sub	ip, ip, #16
+		teq	ip, #0
+		bne	1b
+2:		ands	ip, len, #12
+		beq	4f
+		tst	ip, #8
+		beq	3f
+		load2l	r5, r6
+		orr	r4, r4, r5, lspush #16
+		mov	r5, r5, lspull #16
+		orr	r5, r5, r6, lspush #16
+		stmia	dst!, {r4, r5}
+		adcs	sum, sum, r4
+		adcs	sum, sum, r5
+		mov	r4, r6, lspull #16
+		tst	ip, #4
+		beq	4f
+3:		load1l	r5
+		orr	r4, r4, r5, lspush #16
+		str	r4, [dst], #4
+		adcs	sum, sum, r4
+		mov	r4, r5, lspull #16
+4:		ands	len, len, #3
+		beq	.Ldone
+		mov	r5, r4, get_byte_0
+		tst	len, #2
+		beq	.Lexit
+		adcs	sum, sum, r4
+		strb	r5, [dst], #1
+		mov	r5, r4, get_byte_1
+		strb	r5, [dst], #1
+		tst	len, #1
+		beq	.Ldone
+		load1b	r5
+		b	.Lexit
+
+.Lsrc3_aligned:	mov	r4, r5, lspull #24
+		adds	sum, sum, #0
+		bics	ip, len, #15
+		beq	2f
+1:		load4l	r5, r6, r7, r8
+		orr	r4, r4, r5, lspush #8
+		mov	r5, r5, lspull #24
+		orr	r5, r5, r6, lspush #8
+		mov	r6, r6, lspull #24
+		orr	r6, r6, r7, lspush #8
+		mov	r7, r7, lspull #24
+		orr	r7, r7, r8, lspush #8
+		stmia	dst!, {r4, r5, r6, r7}
+		adcs	sum, sum, r4
+		adcs	sum, sum, r5
+		adcs	sum, sum, r6
+		adcs	sum, sum, r7
+		mov	r4, r8, lspull #24
+		sub	ip, ip, #16
+		teq	ip, #0
+		bne	1b
+2:		ands	ip, len, #12
+		beq	4f
+		tst	ip, #8
+		beq	3f
+		load2l	r5, r6
+		orr	r4, r4, r5, lspush #8
+		mov	r5, r5, lspull #24
+		orr	r5, r5, r6, lspush #8
+		stmia	dst!, {r4, r5}
+		adcs	sum, sum, r4
+		adcs	sum, sum, r5
+		mov	r4, r6, lspull #24
+		tst	ip, #4
+		beq	4f
+3:		load1l	r5
+		orr	r4, r4, r5, lspush #8
+		str	r4, [dst], #4
+		adcs	sum, sum, r4
+		mov	r4, r5, lspull #24
+4:		ands	len, len, #3
+		beq	.Ldone
+		mov	r5, r4, get_byte_0
+		tst	len, #2
+		beq	.Lexit
+		strb	r5, [dst], #1
+		adcs	sum, sum, r4
+		load1l	r4
+		mov	r5, r4, get_byte_0
+		strb	r5, [dst], #1
+		adcs	sum, sum, r4, lspush #24
+		mov	r5, r4, get_byte_1
+		b	.Lexit
+FN_EXIT