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, 346 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/vector.S b/arch/powerpc/kernel/vector.S
new file mode 100644
index 000000000..ffe5d90ab
--- /dev/null
+++ b/arch/powerpc/kernel/vector.S
@@ -0,0 +1,346 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/linkage.h>
+#include <asm/processor.h>
+#include <asm/ppc_asm.h>
+#include <asm/reg.h>
+#include <asm/asm-offsets.h>
+#include <asm/cputable.h>
+#include <asm/thread_info.h>
+#include <asm/page.h>
+#include <asm/ptrace.h>
+#include <asm/export.h>
+#include <asm/asm-compat.h>
+
+/*
+ * Load state from memory into VMX registers including VSCR.
+ * Assumes the caller has enabled VMX in the MSR.
+ */
+_GLOBAL(load_vr_state)
+	li	r4,VRSTATE_VSCR
+	lvx	v0,r4,r3
+	mtvscr	v0
+	REST_32VRS(0,r4,r3)
+	blr
+EXPORT_SYMBOL(load_vr_state)
+_ASM_NOKPROBE_SYMBOL(load_vr_state); /* used by restore_math */
+
+/*
+ * Store VMX state into memory, including VSCR.
+ * Assumes the caller has enabled VMX in the MSR.
+ */
+_GLOBAL(store_vr_state)
+	SAVE_32VRS(0, r4, r3)
+	mfvscr	v0
+	li	r4, VRSTATE_VSCR
+	stvx	v0, r4, r3
+	blr
+EXPORT_SYMBOL(store_vr_state)
+
+/*
+ * Disable VMX for the task which had it previously,
+ * and save its vector registers in its thread_struct.
+ * Enables the VMX for use in the kernel on return.
+ * On SMP we know the VMX is free, since we give it up every
+ * switch (ie, no lazy save of the vector registers).
+ *
+ * Note that on 32-bit this can only use registers that will be
+ * restored by fast_exception_return, i.e. r3 - r6, r10 and r11.
+ */
+_GLOBAL(load_up_altivec)
+	mfmsr	r5			/* grab the current MSR */
+#ifdef CONFIG_PPC_BOOK3S_64
+	/* interrupt doesn't set MSR[RI] and HPT can fault on current access */
+	ori	r5,r5,MSR_RI
+#endif
+	oris	r5,r5,MSR_VEC@h
+	MTMSRD(r5)			/* enable use of AltiVec now */
+	isync
+
+	/*
+	 * While userspace in general ignores VRSAVE, glibc uses it as a boolean
+	 * to optimise userspace context save/restore. Whenever we take an
+	 * altivec unavailable exception we must set VRSAVE to something non
+	 * zero. Set it to all 1s. See also the programming note in the ISA.
+	 */
+	mfspr	r4,SPRN_VRSAVE
+	cmpwi	0,r4,0
+	bne+	1f
+	li	r4,-1
+	mtspr	SPRN_VRSAVE,r4
+1:
+	/* enable use of VMX after return */
+#ifdef CONFIG_PPC32
+	addi	r5,r2,THREAD
+	oris	r9,r9,MSR_VEC@h
+#else
+	ld	r4,PACACURRENT(r13)
+	addi	r5,r4,THREAD		/* Get THREAD */
+	oris	r12,r12,MSR_VEC@h
+	std	r12,_MSR(r1)
+#ifdef CONFIG_PPC_BOOK3S_64
+	li	r4,0
+	stb	r4,PACASRR_VALID(r13)
+#endif
+#endif
+	li	r4,1
+	stb	r4,THREAD_LOAD_VEC(r5)
+	addi	r6,r5,THREAD_VRSTATE
+	li	r10,VRSTATE_VSCR
+	stw	r4,THREAD_USED_VR(r5)
+	lvx	v0,r10,r6
+	mtvscr	v0
+	REST_32VRS(0,r4,r6)
+	/* restore registers and return */
+	blr
+_ASM_NOKPROBE_SYMBOL(load_up_altivec)
+
+/*
+ * save_altivec(tsk)
+ * Save the vector registers to its thread_struct
+ */
+_GLOBAL(save_altivec)
+	addi	r3,r3,THREAD		/* want THREAD of task */
+	PPC_LL	r7,THREAD_VRSAVEAREA(r3)
+	PPC_LL	r5,PT_REGS(r3)
+	PPC_LCMPI	0,r7,0
+	bne	2f
+	addi	r7,r3,THREAD_VRSTATE
+2:	SAVE_32VRS(0,r4,r7)
+	mfvscr	v0
+	li	r4,VRSTATE_VSCR
+	stvx	v0,r4,r7
+	blr
+
+#ifdef CONFIG_VSX
+
+#ifdef CONFIG_PPC32
+#error This asm code isn't ready for 32-bit kernels
+#endif
+
+/*
+ * load_up_vsx(unused, unused, tsk)
+ * Disable VSX for the task which had it previously,
+ * and save its vector registers in its thread_struct.
+ * Reuse the fp and vsx saves, but first check to see if they have
+ * been saved already.
+ */
+_GLOBAL(load_up_vsx)
+/* Load FP and VSX registers if they haven't been done yet */
+	andi.	r5,r12,MSR_FP
+	beql+	load_up_fpu		/* skip if already loaded */
+	andis.	r5,r12,MSR_VEC@h
+	beql+	load_up_altivec		/* skip if already loaded */
+
+#ifdef CONFIG_PPC_BOOK3S_64
+	/* interrupt doesn't set MSR[RI] and HPT can fault on current access */
+	li	r5,MSR_RI
+	mtmsrd	r5,1
+#endif
+
+	ld	r4,PACACURRENT(r13)
+	addi	r4,r4,THREAD		/* Get THREAD */
+	li	r6,1
+	stw	r6,THREAD_USED_VSR(r4) /* ... also set thread used vsr */
+	/* enable use of VSX after return */
+	oris	r12,r12,MSR_VSX@h
+	std	r12,_MSR(r1)
+	li	r4,0
+	stb	r4,PACASRR_VALID(r13)
+	b	fast_interrupt_return_srr
+
+#endif /* CONFIG_VSX */
+
+
+/*
+ * The routines below are in assembler so we can closely control the
+ * usage of floating-point registers.  These routines must be called
+ * with preempt disabled.
+ */
+	.data
+#ifdef CONFIG_PPC32
+fpzero:
+	.long	0
+fpone:
+	.long	0x3f800000	/* 1.0 in single-precision FP */
+fphalf:
+	.long	0x3f000000	/* 0.5 in single-precision FP */
+
+#define LDCONST(fr, name)	\
+	lis	r11,name@ha;	\
+	lfs	fr,name@l(r11)
+#else
+
+fpzero:
+	.quad	0
+fpone:
+	.quad	0x3ff0000000000000	/* 1.0 */
+fphalf:
+	.quad	0x3fe0000000000000	/* 0.5 */
+
+#define LDCONST(fr, name)		\
+	addis	r11,r2,name@toc@ha;	\
+	lfd	fr,name@toc@l(r11)
+#endif
+	.text
+/*
+ * Internal routine to enable floating point and set FPSCR to 0.
+ * Don't call it from C; it doesn't use the normal calling convention.
+ */
+SYM_FUNC_START_LOCAL(fpenable)
+#ifdef CONFIG_PPC32
+	stwu	r1,-64(r1)
+#else
+	stdu	r1,-64(r1)
+#endif
+	mfmsr	r10
+	ori	r11,r10,MSR_FP
+	mtmsr	r11
+	isync
+	stfd	fr0,24(r1)
+	stfd	fr1,16(r1)
+	stfd	fr31,8(r1)
+	LDCONST(fr1, fpzero)
+	mffs	fr31
+	MTFSF_L(fr1)
+	blr
+SYM_FUNC_END(fpenable)
+
+fpdisable:
+	mtlr	r12
+	MTFSF_L(fr31)
+	lfd	fr31,8(r1)
+	lfd	fr1,16(r1)
+	lfd	fr0,24(r1)
+	mtmsr	r10
+	isync
+	addi	r1,r1,64
+	blr
+
+/*
+ * Vector add, floating point.
+ */
+_GLOBAL(vaddfp)
+	mflr	r12
+	bl	fpenable
+	li	r0,4
+	mtctr	r0
+	li	r6,0
+1:	lfsx	fr0,r4,r6
+	lfsx	fr1,r5,r6
+	fadds	fr0,fr0,fr1
+	stfsx	fr0,r3,r6
+	addi	r6,r6,4
+	bdnz	1b
+	b	fpdisable
+
+/*
+ * Vector subtract, floating point.
+ */
+_GLOBAL(vsubfp)
+	mflr	r12
+	bl	fpenable
+	li	r0,4
+	mtctr	r0
+	li	r6,0
+1:	lfsx	fr0,r4,r6
+	lfsx	fr1,r5,r6
+	fsubs	fr0,fr0,fr1
+	stfsx	fr0,r3,r6
+	addi	r6,r6,4
+	bdnz	1b
+	b	fpdisable
+
+/*
+ * Vector multiply and add, floating point.
+ */
+_GLOBAL(vmaddfp)
+	mflr	r12
+	bl	fpenable
+	stfd	fr2,32(r1)
+	li	r0,4
+	mtctr	r0
+	li	r7,0
+1:	lfsx	fr0,r4,r7
+	lfsx	fr1,r5,r7
+	lfsx	fr2,r6,r7
+	fmadds	fr0,fr0,fr2,fr1
+	stfsx	fr0,r3,r7
+	addi	r7,r7,4
+	bdnz	1b
+	lfd	fr2,32(r1)
+	b	fpdisable
+
+/*
+ * Vector negative multiply and subtract, floating point.
+ */
+_GLOBAL(vnmsubfp)
+	mflr	r12
+	bl	fpenable
+	stfd	fr2,32(r1)
+	li	r0,4
+	mtctr	r0
+	li	r7,0
+1:	lfsx	fr0,r4,r7
+	lfsx	fr1,r5,r7
+	lfsx	fr2,r6,r7
+	fnmsubs	fr0,fr0,fr2,fr1
+	stfsx	fr0,r3,r7
+	addi	r7,r7,4
+	bdnz	1b
+	lfd	fr2,32(r1)
+	b	fpdisable
+
+/*
+ * Vector reciprocal estimate.  We just compute 1.0/x.
+ * r3 -> destination, r4 -> source.
+ */
+_GLOBAL(vrefp)
+	mflr	r12
+	bl	fpenable
+	li	r0,4
+	LDCONST(fr1, fpone)
+	mtctr	r0
+	li	r6,0
+1:	lfsx	fr0,r4,r6
+	fdivs	fr0,fr1,fr0
+	stfsx	fr0,r3,r6
+	addi	r6,r6,4
+	bdnz	1b
+	b	fpdisable
+
+/*
+ * Vector reciprocal square-root estimate, floating point.
+ * We use the frsqrte instruction for the initial estimate followed
+ * by 2 iterations of Newton-Raphson to get sufficient accuracy.
+ * r3 -> destination, r4 -> source.
+ */
+_GLOBAL(vrsqrtefp)
+	mflr	r12
+	bl	fpenable
+	stfd	fr2,32(r1)
+	stfd	fr3,40(r1)
+	stfd	fr4,48(r1)
+	stfd	fr5,56(r1)
+	li	r0,4
+	LDCONST(fr4, fpone)
+	LDCONST(fr5, fphalf)
+	mtctr	r0
+	li	r6,0
+1:	lfsx	fr0,r4,r6
+	frsqrte	fr1,fr0		/* r = frsqrte(s) */
+	fmuls	fr3,fr1,fr0	/* r * s */
+	fmuls	fr2,fr1,fr5	/* r * 0.5 */
+	fnmsubs	fr3,fr1,fr3,fr4	/* 1 - s * r * r */
+	fmadds	fr1,fr2,fr3,fr1	/* r = r + 0.5 * r * (1 - s * r * r) */
+	fmuls	fr3,fr1,fr0	/* r * s */
+	fmuls	fr2,fr1,fr5	/* r * 0.5 */
+	fnmsubs	fr3,fr1,fr3,fr4	/* 1 - s * r * r */
+	fmadds	fr1,fr2,fr3,fr1	/* r = r + 0.5 * r * (1 - s * r * r) */
+	stfsx	fr1,r3,r6
+	addi	r6,r6,4
+	bdnz	1b
+	lfd	fr5,56(r1)
+	lfd	fr4,48(r1)
+	lfd	fr3,40(r1)
+	lfd	fr2,32(r1)
+	b	fpdisable