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, 237 insertions, 0 deletions

diff --git a/arch/arm/mm/abort-lv4t.S b/arch/arm/mm/abort-lv4t.S
new file mode 100644
index 000000000..fbd60a120
--- /dev/null
+++ b/arch/arm/mm/abort-lv4t.S
@@ -0,0 +1,237 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+/*
+ * Function: v4t_late_abort
+ *
+ * Params  : r2 = pt_regs
+ *	   : r4 = aborted context pc
+ *	   : r5 = aborted context psr
+ *
+ * Returns : r4-r5, r9-r11, r13 preserved
+ *
+ * Purpose : obtain information about current aborted instruction.
+ * Note: we read user space.  This means we might cause a data
+ * abort here if the I-TLB and D-TLB aren't seeing the same
+ * picture.  Unfortunately, this does happen.  We live with it.
+ */
+ENTRY(v4t_late_abort)
+	tst	r5, #PSR_T_BIT			@ check for thumb mode
+#ifdef CONFIG_CPU_CP15_MMU
+	mrc	p15, 0, r1, c5, c0, 0		@ get FSR
+	mrc	p15, 0, r0, c6, c0, 0		@ get FAR
+	bic	r1, r1, #1 << 11 | 1 << 10	@ clear bits 11 and 10 of FSR
+#else
+	mov	r0, #0				@ clear r0, r1 (no FSR/FAR)
+	mov	r1, #0
+#endif
+	bne	.data_thumb_abort
+	ldr	r8, [r4]			@ read arm instruction
+	uaccess_disable ip			@ disable userspace access
+	tst	r8, #1 << 20			@ L = 1 -> write?
+	orreq	r1, r1, #1 << 11		@ yes.
+	and	r7, r8, #15 << 24
+	add	pc, pc, r7, lsr #22		@ Now branch to the relevant processing routine
+	nop
+
+/* 0 */	b	.data_arm_lateldrhpost		@ ldrh	rd, [rn], #m/rm
+/* 1 */	b	.data_arm_lateldrhpre		@ ldrh	rd, [rn, #m/rm]
+/* 2 */	b	.data_unknown
+/* 3 */	b	.data_unknown
+/* 4 */	b	.data_arm_lateldrpostconst	@ ldr	rd, [rn], #m
+/* 5 */	b	.data_arm_lateldrpreconst	@ ldr	rd, [rn, #m] 
+/* 6 */	b	.data_arm_lateldrpostreg	@ ldr	rd, [rn], rm
+/* 7 */	b	.data_arm_lateldrprereg		@ ldr	rd, [rn, rm]
+/* 8 */	b	.data_arm_ldmstm		@ ldm*a	rn, <rlist>
+/* 9 */	b	.data_arm_ldmstm		@ ldm*b	rn, <rlist>
+/* a */	b	.data_unknown
+/* b */	b	.data_unknown
+/* c */	b	do_DataAbort			@ ldc	rd, [rn], #m	@ Same as ldr	rd, [rn], #m
+/* d */	b	do_DataAbort			@ ldc	rd, [rn, #m]
+/* e */	b	.data_unknown
+/* f */	b	.data_unknown
+
+.data_unknown_r9:
+	ldr	r9, [sp], #4
+.data_unknown:	@ Part of jumptable
+	mov	r0, r4
+	mov	r1, r8
+	b	baddataabort
+
+.data_arm_ldmstm:
+	tst	r8, #1 << 21			@ check writeback bit
+	beq	do_DataAbort			@ no writeback -> no fixup
+	str	r9, [sp, #-4]!
+	mov	r7, #0x11
+	orr	r7, r7, #0x1100
+	and	r6, r8, r7
+	and	r9, r8, r7, lsl #1
+	add	r6, r6, r9, lsr #1
+	and	r9, r8, r7, lsl #2
+	add	r6, r6, r9, lsr #2
+	and	r9, r8, r7, lsl #3
+	add	r6, r6, r9, lsr #3
+	add	r6, r6, r6, lsr #8
+	add	r6, r6, r6, lsr #4
+	and	r6, r6, #15			@ r6 = no. of registers to transfer.
+	and	r9, r8, #15 << 16		@ Extract 'n' from instruction
+	ldr	r7, [r2, r9, lsr #14]		@ Get register 'Rn'
+	tst	r8, #1 << 23			@ Check U bit
+	subne	r7, r7, r6, lsl #2		@ Undo increment
+	addeq	r7, r7, r6, lsl #2		@ Undo decrement
+	str	r7, [r2, r9, lsr #14]		@ Put register 'Rn'
+	ldr	r9, [sp], #4
+	b	do_DataAbort
+
+.data_arm_lateldrhpre:
+	tst	r8, #1 << 21			@ Check writeback bit
+	beq	do_DataAbort			@ No writeback -> no fixup
+.data_arm_lateldrhpost:
+	str	r9, [sp, #-4]!
+	and	r9, r8, #0x00f			@ get Rm / low nibble of immediate value
+	tst	r8, #1 << 22			@ if (immediate offset)
+	andne	r6, r8, #0xf00			@ { immediate high nibble
+	orrne	r6, r9, r6, lsr #4		@   combine nibbles } else
+	ldreq	r6, [r2, r9, lsl #2]		@ { load Rm value }
+.data_arm_apply_r6_and_rn:
+	and	r9, r8, #15 << 16		@ Extract 'n' from instruction
+	ldr	r7, [r2, r9, lsr #14]		@ Get register 'Rn'
+	tst	r8, #1 << 23			@ Check U bit
+	subne	r7, r7, r6			@ Undo incrmenet
+	addeq	r7, r7, r6			@ Undo decrement
+	str	r7, [r2, r9, lsr #14]		@ Put register 'Rn'
+	ldr	r9, [sp], #4
+	b	do_DataAbort
+
+.data_arm_lateldrpreconst:
+	tst	r8, #1 << 21			@ check writeback bit
+	beq	do_DataAbort			@ no writeback -> no fixup
+.data_arm_lateldrpostconst:
+	movs	r6, r8, lsl #20			@ Get offset
+	beq	do_DataAbort			@ zero -> no fixup
+	str	r9, [sp, #-4]!
+	and	r9, r8, #15 << 16		@ Extract 'n' from instruction
+	ldr	r7, [r2, r9, lsr #14]		@ Get register 'Rn'
+	tst	r8, #1 << 23			@ Check U bit
+	subne	r7, r7, r6, lsr #20		@ Undo increment
+	addeq	r7, r7, r6, lsr #20		@ Undo decrement
+	str	r7, [r2, r9, lsr #14]		@ Put register 'Rn'
+	ldr	r9, [sp], #4
+	b	do_DataAbort
+
+.data_arm_lateldrprereg:
+	tst	r8, #1 << 21			@ check writeback bit
+	beq	do_DataAbort			@ no writeback -> no fixup
+.data_arm_lateldrpostreg:
+	and	r7, r8, #15			@ Extract 'm' from instruction
+	ldr	r6, [r2, r7, lsl #2]		@ Get register 'Rm'
+	str	r9, [sp, #-4]!
+	mov	r9, r8, lsr #7			@ get shift count
+	ands	r9, r9, #31
+	and	r7, r8, #0x70			@ get shift type
+	orreq	r7, r7, #8			@ shift count = 0
+	add	pc, pc, r7
+	nop
+
+	mov	r6, r6, lsl r9			@ 0: LSL #!0
+	b	.data_arm_apply_r6_and_rn
+	b	.data_arm_apply_r6_and_rn	@ 1: LSL #0
+	nop
+	b	.data_unknown_r9		@ 2: MUL?
+	nop
+	b	.data_unknown_r9		@ 3: MUL?
+	nop
+	mov	r6, r6, lsr r9			@ 4: LSR #!0
+	b	.data_arm_apply_r6_and_rn
+	mov	r6, r6, lsr #32			@ 5: LSR #32
+	b	.data_arm_apply_r6_and_rn
+	b	.data_unknown_r9		@ 6: MUL?
+	nop
+	b	.data_unknown_r9		@ 7: MUL?
+	nop
+	mov	r6, r6, asr r9			@ 8: ASR #!0
+	b	.data_arm_apply_r6_and_rn
+	mov	r6, r6, asr #32			@ 9: ASR #32
+	b	.data_arm_apply_r6_and_rn
+	b	.data_unknown_r9		@ A: MUL?
+	nop
+	b	.data_unknown_r9		@ B: MUL?
+	nop
+	mov	r6, r6, ror r9			@ C: ROR #!0
+	b	.data_arm_apply_r6_and_rn
+	mov	r6, r6, rrx			@ D: RRX
+	b	.data_arm_apply_r6_and_rn
+	b	.data_unknown_r9		@ E: MUL?
+	nop
+	b	.data_unknown_r9		@ F: MUL?
+
+.data_thumb_abort:
+	ldrh	r8, [r4]			@ read instruction
+	uaccess_disable ip			@ disable userspace access
+	tst	r8, #1 << 11			@ L = 1 -> write?
+	orreq	r1, r1, #1 << 8			@ yes
+	and	r7, r8, #15 << 12
+	add	pc, pc, r7, lsr #10		@ lookup in table
+	nop
+
+/* 0 */	b	.data_unknown
+/* 1 */	b	.data_unknown
+/* 2 */	b	.data_unknown
+/* 3 */	b	.data_unknown
+/* 4 */	b	.data_unknown
+/* 5 */	b	.data_thumb_reg
+/* 6 */	b	do_DataAbort
+/* 7 */	b	do_DataAbort
+/* 8 */	b	do_DataAbort
+/* 9 */	b	do_DataAbort
+/* A */	b	.data_unknown
+/* B */	b	.data_thumb_pushpop
+/* C */	b	.data_thumb_ldmstm
+/* D */	b	.data_unknown
+/* E */	b	.data_unknown
+/* F */	b	.data_unknown
+
+.data_thumb_reg:
+	tst	r8, #1 << 9
+	beq	do_DataAbort
+	tst	r8, #1 << 10			@ If 'S' (signed) bit is set
+	movne	r1, #0				@ it must be a load instr
+	b	do_DataAbort
+
+.data_thumb_pushpop:
+	tst	r8, #1 << 10
+	beq	.data_unknown
+	str	r9, [sp, #-4]!
+	and	r6, r8, #0x55			@ hweight8(r8) + R bit
+	and	r9, r8, #0xaa
+	add	r6, r6, r9, lsr #1
+	and	r9, r6, #0xcc
+	and	r6, r6, #0x33
+	add	r6, r6, r9, lsr #2
+	movs	r7, r8, lsr #9			@ C = r8 bit 8 (R bit)
+	adc	r6, r6, r6, lsr #4		@ high + low nibble + R bit
+	and	r6, r6, #15			@ number of regs to transfer
+	ldr	r7, [r2, #13 << 2]
+	tst	r8, #1 << 11
+	addeq	r7, r7, r6, lsl #2		@ increment SP if PUSH
+	subne	r7, r7, r6, lsl #2		@ decrement SP if POP
+	str	r7, [r2, #13 << 2]
+	ldr	r9, [sp], #4
+	b	do_DataAbort
+
+.data_thumb_ldmstm:
+	str	r9, [sp, #-4]!
+	and	r6, r8, #0x55			@ hweight8(r8)
+	and	r9, r8, #0xaa
+	add	r6, r6, r9, lsr #1
+	and	r9, r6, #0xcc
+	and	r6, r6, #0x33
+	add	r6, r6, r9, lsr #2
+	add	r6, r6, r6, lsr #4
+	and	r9, r8, #7 << 8
+	ldr	r7, [r2, r9, lsr #6]
+	and	r6, r6, #15			@ number of regs to transfer
+	sub	r7, r7, r6, lsl #2		@ always decrement
+	str	r7, [r2, r9, lsr #6]
+	ldr	r9, [sp], #4
+	b	do_DataAbort