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, 268 insertions, 0 deletions

diff --git a/arch/m68k/fpsp040/x_unfl.S b/arch/m68k/fpsp040/x_unfl.S
new file mode 100644
index 000000000..eb772ff3b
--- /dev/null
+++ b/arch/m68k/fpsp040/x_unfl.S
@@ -0,0 +1,268 @@
+|
+|	x_unfl.sa 3.4 7/1/91
+|
+|	fpsp_unfl --- FPSP handler for underflow exception
+|
+| Trap disabled results
+|	For 881/2 compatibility, sw must denormalize the intermediate
+| result, then store the result.  Denormalization is accomplished
+| by taking the intermediate result (which is always normalized) and
+| shifting the mantissa right while incrementing the exponent until
+| it is equal to the denormalized exponent for the destination
+| format.  After denormalization, the result is rounded to the
+| destination format.
+|
+| Trap enabled results
+|	All trap disabled code applies.	In addition the exceptional
+| operand needs to made available to the user with a bias of $6000
+| added to the exponent.
+|
+
+|		Copyright (C) Motorola, Inc. 1990
+|			All Rights Reserved
+|
+|       For details on the license for this file, please see the
+|       file, README, in this same directory.
+
+X_UNFL:	|idnt    2,1 | Motorola 040 Floating Point Software Package
+
+	|section	8
+
+#include "fpsp.h"
+
+	|xref	denorm
+	|xref	round
+	|xref	store
+	|xref	g_rndpr
+	|xref	g_opcls
+	|xref	g_dfmtou
+	|xref	real_unfl
+	|xref	real_inex
+	|xref	fpsp_done
+	|xref	b1238_fix
+
+	.global	fpsp_unfl
+fpsp_unfl:
+	link		%a6,#-LOCAL_SIZE
+	fsave		-(%a7)
+	moveml		%d0-%d1/%a0-%a1,USER_DA(%a6)
+	fmovemx	%fp0-%fp3,USER_FP0(%a6)
+	fmoveml	%fpcr/%fpsr/%fpiar,USER_FPCR(%a6)
+
+|
+	bsrl		unf_res	|denormalize, round & store interm op
+|
+| If underflow exceptions are not enabled, check for inexact
+| exception
+|
+	btstb		#unfl_bit,FPCR_ENABLE(%a6)
+	beqs		ck_inex
+
+	btstb		#E3,E_BYTE(%a6)
+	beqs		no_e3_1
+|
+| Clear dirty bit on dest resister in the frame before branching
+| to b1238_fix.
+|
+	bfextu		CMDREG3B(%a6){#6:#3},%d0	|get dest reg no
+	bclrb		%d0,FPR_DIRTY_BITS(%a6)	|clr dest dirty bit
+	bsrl		b1238_fix		|test for bug1238 case
+	movel		USER_FPSR(%a6),FPSR_SHADOW(%a6)
+	orl		#sx_mask,E_BYTE(%a6)
+no_e3_1:
+	moveml		USER_DA(%a6),%d0-%d1/%a0-%a1
+	fmovemx	USER_FP0(%a6),%fp0-%fp3
+	fmoveml	USER_FPCR(%a6),%fpcr/%fpsr/%fpiar
+	frestore	(%a7)+
+	unlk		%a6
+	bral		real_unfl
+|
+| It is possible to have either inex2 or inex1 exceptions with the
+| unfl.  If the inex enable bit is set in the FPCR, and either
+| inex2 or inex1 occurred, we must clean up and branch to the
+| real inex handler.
+|
+ck_inex:
+	moveb		FPCR_ENABLE(%a6),%d0
+	andb		FPSR_EXCEPT(%a6),%d0
+	andib		#0x3,%d0
+	beqs		unfl_done
+
+|
+| Inexact enabled and reported, and we must take an inexact exception
+|
+take_inex:
+	btstb		#E3,E_BYTE(%a6)
+	beqs		no_e3_2
+|
+| Clear dirty bit on dest resister in the frame before branching
+| to b1238_fix.
+|
+	bfextu		CMDREG3B(%a6){#6:#3},%d0	|get dest reg no
+	bclrb		%d0,FPR_DIRTY_BITS(%a6)	|clr dest dirty bit
+	bsrl		b1238_fix		|test for bug1238 case
+	movel		USER_FPSR(%a6),FPSR_SHADOW(%a6)
+	orl		#sx_mask,E_BYTE(%a6)
+no_e3_2:
+	moveb		#INEX_VEC,EXC_VEC+1(%a6)
+	moveml         USER_DA(%a6),%d0-%d1/%a0-%a1
+	fmovemx        USER_FP0(%a6),%fp0-%fp3
+	fmoveml        USER_FPCR(%a6),%fpcr/%fpsr/%fpiar
+	frestore        (%a7)+
+	unlk            %a6
+	bral		real_inex
+
+unfl_done:
+	bclrb		#E3,E_BYTE(%a6)
+	beqs		e1_set		|if set then branch
+|
+| Clear dirty bit on dest resister in the frame before branching
+| to b1238_fix.
+|
+	bfextu		CMDREG3B(%a6){#6:#3},%d0		|get dest reg no
+	bclrb		%d0,FPR_DIRTY_BITS(%a6)	|clr dest dirty bit
+	bsrl		b1238_fix		|test for bug1238 case
+	movel		USER_FPSR(%a6),FPSR_SHADOW(%a6)
+	orl		#sx_mask,E_BYTE(%a6)
+	moveml		USER_DA(%a6),%d0-%d1/%a0-%a1
+	fmovemx	USER_FP0(%a6),%fp0-%fp3
+	fmoveml	USER_FPCR(%a6),%fpcr/%fpsr/%fpiar
+	frestore	(%a7)+
+	unlk		%a6
+	bral		fpsp_done
+e1_set:
+	moveml		USER_DA(%a6),%d0-%d1/%a0-%a1
+	fmovemx	USER_FP0(%a6),%fp0-%fp3
+	fmoveml	USER_FPCR(%a6),%fpcr/%fpsr/%fpiar
+	unlk		%a6
+	bral		fpsp_done
+|
+|	unf_res --- underflow result calculation
+|
+unf_res:
+	bsrl		g_rndpr		|returns RND_PREC in d0 0=ext,
+|					;1=sgl, 2=dbl
+|					;we need the RND_PREC in the
+|					;upper word for round
+	movew		#0,-(%a7)
+	movew		%d0,-(%a7)	|copy RND_PREC to stack
+|
+|
+| If the exception bit set is E3, the exceptional operand from the
+| fpu is in WBTEMP; else it is in FPTEMP.
+|
+	btstb		#E3,E_BYTE(%a6)
+	beqs		unf_E1
+unf_E3:
+	lea		WBTEMP(%a6),%a0	|a0 now points to operand
+|
+| Test for fsgldiv and fsglmul.  If the inst was one of these, then
+| force the precision to extended for the denorm routine.  Use
+| the user's precision for the round routine.
+|
+	movew		CMDREG3B(%a6),%d1	|check for fsgldiv or fsglmul
+	andiw		#0x7f,%d1
+	cmpiw		#0x30,%d1		|check for sgldiv
+	beqs		unf_sgl
+	cmpiw		#0x33,%d1		|check for sglmul
+	bnes		unf_cont	|if not, use fpcr prec in round
+unf_sgl:
+	clrl		%d0
+	movew		#0x1,(%a7)	|override g_rndpr precision
+|					;force single
+	bras		unf_cont
+unf_E1:
+	lea		FPTEMP(%a6),%a0	|a0 now points to operand
+unf_cont:
+	bclrb		#sign_bit,LOCAL_EX(%a0)	|clear sign bit
+	sne		LOCAL_SGN(%a0)		|store sign
+
+	bsrl		denorm		|returns denorm, a0 points to it
+|
+| WARNING:
+|				;d0 has guard,round sticky bit
+|				;make sure that it is not corrupted
+|				;before it reaches the round subroutine
+|				;also ensure that a0 isn't corrupted
+
+|
+| Set up d1 for round subroutine d1 contains the PREC/MODE
+| information respectively on upper/lower register halves.
+|
+	bfextu		FPCR_MODE(%a6){#2:#2},%d1	|get mode from FPCR
+|						;mode in lower d1
+	addl		(%a7)+,%d1		|merge PREC/MODE
+|
+| WARNING: a0 and d0 are assumed to be intact between the denorm and
+| round subroutines. All code between these two subroutines
+| must not corrupt a0 and d0.
+|
+|
+| Perform Round
+|	Input:		a0 points to input operand
+|			d0{31:29} has guard, round, sticky
+|			d1{01:00} has rounding mode
+|			d1{17:16} has rounding precision
+|	Output:		a0 points to rounded operand
+|
+
+	bsrl		round		|returns rounded denorm at (a0)
+|
+| Differentiate between store to memory vs. store to register
+|
+unf_store:
+	bsrl		g_opcls		|returns opclass in d0{2:0}
+	cmpib		#0x3,%d0
+	bnes		not_opc011
+|
+| At this point, a store to memory is pending
+|
+opc011:
+	bsrl		g_dfmtou
+	tstb		%d0
+	beqs		ext_opc011	|If extended, do not subtract
+|				;If destination format is sgl/dbl,
+	tstb		LOCAL_HI(%a0)	|If rounded result is normal,don't
+|					;subtract
+	bmis		ext_opc011
+	subqw		#1,LOCAL_EX(%a0)	|account for denorm bias vs.
+|				;normalized bias
+|				;          normalized   denormalized
+|				;single       $7f           $7e
+|				;double       $3ff          $3fe
+|
+ext_opc011:
+	bsrl		store		|stores to memory
+	bras		unf_done	|finish up
+
+|
+| At this point, a store to a float register is pending
+|
+not_opc011:
+	bsrl		store	|stores to float register
+|				;a0 is not corrupted on a store to a
+|				;float register.
+|
+| Set the condition codes according to result
+|
+	tstl		LOCAL_HI(%a0)	|check upper mantissa
+	bnes		ck_sgn
+	tstl		LOCAL_LO(%a0)	|check lower mantissa
+	bnes		ck_sgn
+	bsetb		#z_bit,FPSR_CC(%a6) |set condition codes if zero
+ck_sgn:
+	btstb		#sign_bit,LOCAL_EX(%a0)	|check the sign bit
+	beqs		unf_done
+	bsetb		#neg_bit,FPSR_CC(%a6)
+
+|
+| Finish.
+|
+unf_done:
+	btstb		#inex2_bit,FPSR_EXCEPT(%a6)
+	beqs		no_aunfl
+	bsetb		#aunfl_bit,FPSR_AEXCEPT(%a6)
+no_aunfl:
+	rts
+
+	|end