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, 311 insertions, 0 deletions

diff --git a/arch/mips/dec/int-handler.S b/arch/mips/dec/int-handler.S
new file mode 100644
index 000000000..011d1d678
--- /dev/null
+++ b/arch/mips/dec/int-handler.S
@@ -0,0 +1,311 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 1995, 1996, 1997 Paul M. Antoine and Harald Koerfgen
+ * Copyright (C) 2000, 2001, 2002, 2003, 2005  Maciej W. Rozycki
+ *
+ * Written by Ralf Baechle and Andreas Busse, modified for DECstation
+ * support by Paul Antoine and Harald Koerfgen.
+ *
+ * completely rewritten:
+ * Copyright (C) 1998 Harald Koerfgen
+ *
+ * Rewritten extensively for controller-driven IRQ support
+ * by Maciej W. Rozycki.
+ */
+
+#include <asm/addrspace.h>
+#include <asm/asm.h>
+#include <asm/mipsregs.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+
+#include <asm/dec/interrupts.h>
+#include <asm/dec/ioasic_addrs.h>
+#include <asm/dec/ioasic_ints.h>
+#include <asm/dec/kn01.h>
+#include <asm/dec/kn02.h>
+#include <asm/dec/kn02xa.h>
+#include <asm/dec/kn03.h>
+
+#define KN02_CSR_BASE		CKSEG1ADDR(KN02_SLOT_BASE + KN02_CSR)
+#define KN02XA_IOASIC_BASE	CKSEG1ADDR(KN02XA_SLOT_BASE + IOASIC_IOCTL)
+#define KN03_IOASIC_BASE	CKSEG1ADDR(KN03_SLOT_BASE + IOASIC_IOCTL)
+
+		.text
+		.set	noreorder
+/*
+ * plat_irq_dispatch: Interrupt handler for DECstations
+ *
+ * We follow the model in the Indy interrupt code by David Miller, where he
+ * says: a lot of complication here is taken away because:
+ *
+ * 1) We handle one interrupt and return, sitting in a loop
+ *    and moving across all the pending IRQ bits in the cause
+ *    register is _NOT_ the answer, the common case is one
+ *    pending IRQ so optimize in that direction.
+ *
+ * 2) We need not check against bits in the status register
+ *    IRQ mask, that would make this routine slow as hell.
+ *
+ * 3) Linux only thinks in terms of all IRQs on or all IRQs
+ *    off, nothing in between like BSD spl() brain-damage.
+ *
+ * Furthermore, the IRQs on the DECstations look basically (barring
+ * software IRQs which we don't use at all) like...
+ *
+ * DS2100/3100's, aka kn01, aka Pmax:
+ *
+ *	MIPS IRQ	Source
+ *	--------	------
+ *	       0	Software (ignored)
+ *	       1	Software (ignored)
+ *	       2	SCSI
+ *	       3	Lance Ethernet
+ *	       4	DZ11 serial
+ *	       5	RTC
+ *	       6	Memory Controller & Video
+ *	       7	FPU
+ *
+ * DS5000/200, aka kn02, aka 3max:
+ *
+ *	MIPS IRQ	Source
+ *	--------	------
+ *	       0	Software (ignored)
+ *	       1	Software (ignored)
+ *	       2	TurboChannel
+ *	       3	RTC
+ *	       4	Reserved
+ *	       5	Memory Controller
+ *	       6	Reserved
+ *	       7	FPU
+ *
+ * DS5000/1xx's, aka kn02ba, aka 3min:
+ *
+ *	MIPS IRQ	Source
+ *	--------	------
+ *	       0	Software (ignored)
+ *	       1	Software (ignored)
+ *	       2	TurboChannel Slot 0
+ *	       3	TurboChannel Slot 1
+ *	       4	TurboChannel Slot 2
+ *	       5	TurboChannel Slot 3 (ASIC)
+ *	       6	Halt button
+ *	       7	FPU/R4k timer
+ *
+ * DS5000/2x's, aka kn02ca, aka maxine:
+ *
+ *	MIPS IRQ	Source
+ *	--------	------
+ *	       0	Software (ignored)
+ *	       1	Software (ignored)
+ *	       2	Periodic Interrupt (100usec)
+ *	       3	RTC
+ *	       4	I/O write timeout
+ *	       5	TurboChannel (ASIC)
+ *	       6	Halt Keycode from Access.Bus keyboard (CTRL-ALT-ENTER)
+ *	       7	FPU/R4k timer
+ *
+ * DS5000/2xx's, aka kn03, aka 3maxplus:
+ *
+ *	MIPS IRQ	Source
+ *	--------	------
+ *	       0	Software (ignored)
+ *	       1	Software (ignored)
+ *	       2	System Board (ASIC)
+ *	       3	RTC
+ *	       4	Reserved
+ *	       5	Memory
+ *	       6	Halt Button
+ *	       7	FPU/R4k timer
+ *
+ * We handle the IRQ according to _our_ priority (see setup.c),
+ * then we just return.  If multiple IRQs are pending then we will
+ * just take another exception, big deal.
+ */
+		.align	5
+		NESTED(plat_irq_dispatch, PT_SIZE, ra)
+		.set	noreorder
+
+		/*
+		 * Get pending Interrupts
+		 */
+		mfc0	t0,CP0_CAUSE		# get pending interrupts
+		mfc0	t1,CP0_STATUS
+#if defined(CONFIG_32BIT) && defined(CONFIG_MIPS_FP_SUPPORT)
+		lw	t2,cpu_fpu_mask
+#endif
+		andi	t0,ST0_IM		# CAUSE.CE may be non-zero!
+		and	t0,t1			# isolate allowed ones
+
+		beqz	t0,spurious
+
+#if defined(CONFIG_32BIT) && defined(CONFIG_MIPS_FP_SUPPORT)
+		 and	t2,t0
+		bnez	t2,fpu			# handle FPU immediately
+#endif
+
+		/*
+		 * Find irq with highest priority
+		 */
+		# open coded PTR_LA t1, cpu_mask_nr_tbl
+#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
+		# open coded la t1, cpu_mask_nr_tbl
+		lui	t1, %hi(cpu_mask_nr_tbl)
+		addiu	t1, %lo(cpu_mask_nr_tbl)
+#else
+#error GCC `-msym32' option required for 64-bit DECstation builds
+#endif
+1:		lw	t2,(t1)
+		nop
+		and	t2,t0
+		beqz	t2,1b
+		 addu	t1,2*PTRSIZE		# delay slot
+
+		/*
+		 * Do the low-level stuff
+		 */
+		lw	a0,(-PTRSIZE)(t1)
+		nop
+		bgez	a0,handle_it		# irq_nr >= 0?
+						# irq_nr < 0: it is an address
+		 nop
+		jr	a0
+						# a trick to save a branch:
+		 lui	t2,(KN03_IOASIC_BASE>>16)&0xffff
+						# upper part of IOASIC Address
+
+/*
+ * Handle "IRQ Controller" Interrupts
+ * Masked Interrupts are still visible and have to be masked "by hand".
+ */
+		FEXPORT(kn02_io_int)		# 3max
+		lui	t0,(KN02_CSR_BASE>>16)&0xffff
+						# get interrupt status and mask
+		lw	t0,(t0)
+		nop
+		andi	t1,t0,KN02_IRQ_ALL
+		b	1f
+		 srl	t0,16			# shift interrupt mask
+
+		FEXPORT(kn02xa_io_int)		# 3min/maxine
+		lui	t2,(KN02XA_IOASIC_BASE>>16)&0xffff
+						# upper part of IOASIC Address
+
+		FEXPORT(kn03_io_int)		# 3max+ (t2 loaded earlier)
+		lw	t0,IO_REG_SIR(t2)	# get status: IOASIC sir
+		lw	t1,IO_REG_SIMR(t2)	# get mask:   IOASIC simr
+		nop
+
+1:		and	t0,t1			# mask out allowed ones
+
+		beqz	t0,spurious
+
+		/*
+		 * Find irq with highest priority
+		 */
+		# open coded PTR_LA t1,asic_mask_nr_tbl
+#if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
+		# open coded la t1, asic_mask_nr_tbl
+		lui	t1, %hi(asic_mask_nr_tbl)
+		addiu	t1, %lo(asic_mask_nr_tbl)
+#else
+#error GCC `-msym32' option required for 64-bit DECstation builds
+#endif
+2:		lw	t2,(t1)
+		nop
+		and	t2,t0
+		beq	zero,t2,2b
+		 addu	t1,2*PTRSIZE		# delay slot
+
+		/*
+		 * Do the low-level stuff
+		 */
+		lw	a0,%lo(-PTRSIZE)(t1)
+		nop
+		bgez	a0,handle_it		# irq_nr >= 0?
+						# irq_nr < 0: it is an address
+		 nop
+		jr	a0
+		 nop				# delay slot
+
+/*
+ * Dispatch low-priority interrupts.  We reconsider all status
+ * bits again, which looks like a lose, but it makes the code
+ * simple and O(log n), so it gets compensated.
+ */
+		FEXPORT(cpu_all_int)		# HALT, timers, software junk
+		li	a0,DEC_CPU_IRQ_BASE
+		srl	t0,CAUSEB_IP
+		li	t1,CAUSEF_IP>>CAUSEB_IP	# mask
+		b	1f
+		 li	t2,4			# nr of bits / 2
+
+		FEXPORT(kn02_all_int)		# impossible ?
+		li	a0,KN02_IRQ_BASE
+		li	t1,KN02_IRQ_ALL		# mask
+		b	1f
+		 li	t2,4			# nr of bits / 2
+
+		FEXPORT(asic_all_int)		# various I/O ASIC junk
+		li	a0,IO_IRQ_BASE
+		li	t1,IO_IRQ_ALL		# mask
+		b	1f
+		 li	t2,8			# nr of bits / 2
+
+/*
+ * Dispatch DMA interrupts -- O(log n).
+ */
+		FEXPORT(asic_dma_int)		# I/O ASIC DMA events
+		li	a0,IO_IRQ_BASE+IO_INR_DMA
+		srl	t0,IO_INR_DMA
+		li	t1,IO_IRQ_DMA>>IO_INR_DMA # mask
+		li	t2,8			# nr of bits / 2
+
+		/*
+		 * Find irq with highest priority.
+		 * Highest irq number takes precedence.
+		 */
+1:		srlv	t3,t1,t2
+2:		xor	t1,t3
+		and	t3,t0,t1
+		beqz	t3,3f
+		 nop
+		move	t0,t3
+		addu	a0,t2
+3:		srl	t2,1
+		bnez	t2,2b
+		 srlv	t3,t1,t2
+
+handle_it:
+		j	dec_irq_dispatch
+		 nop
+
+#if defined(CONFIG_32BIT) && defined(CONFIG_MIPS_FP_SUPPORT)
+fpu:
+		lw	t0,fpu_kstat_irq
+		nop
+		lw	t1,(t0)
+		nop
+		addu	t1,1
+		j	handle_fpe_int
+		 sw	t1,(t0)
+#endif
+
+spurious:
+		j	spurious_interrupt
+		 nop
+		END(plat_irq_dispatch)
+
+/*
+ * Generic unimplemented interrupt routines -- cpu_mask_nr_tbl
+ * and asic_mask_nr_tbl are initialized to point all interrupts here.
+ * The tables are then filled in by machine-specific initialisation
+ * in dec_setup().
+ */
+		FEXPORT(dec_intr_unimplemented)
+		move	a1,t0			# cheats way of printing an arg!
+		ASM_PANIC("Unimplemented cpu interrupt! CP0_CAUSE: 0x%08x");
+
+		FEXPORT(asic_intr_unimplemented)
+		move	a1,t0			# cheats way of printing an arg!
+		ASM_PANIC("Unimplemented asic interrupt! ASIC ISR: 0x%08x");