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, 322 insertions, 0 deletions

diff --git a/arch/mips/kernel/bmips_vec.S b/arch/mips/kernel/bmips_vec.S
new file mode 100644
index 000000000..921a5fa55
--- /dev/null
+++ b/arch/mips/kernel/bmips_vec.S
@@ -0,0 +1,322 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2011 by Kevin Cernekee (cernekee@gmail.com)
+ *
+ * Reset/NMI/re-entry vectors for BMIPS processors
+ */
+
+
+#include <asm/asm.h>
+#include <asm/asmmacro.h>
+#include <asm/cacheops.h>
+#include <asm/cpu.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+#include <asm/stackframe.h>
+#include <asm/addrspace.h>
+#include <asm/hazards.h>
+#include <asm/bmips.h>
+
+	.macro	BARRIER
+	.set	mips32
+	_ssnop
+	_ssnop
+	_ssnop
+	.set	mips0
+	.endm
+
+/***********************************************************************
+ * Alternate CPU1 startup vector for BMIPS4350
+ *
+ * On some systems the bootloader has already started CPU1 and configured
+ * it to resume execution at 0x8000_0200 (!BEV IV vector) when it is
+ * triggered by the SW1 interrupt.  If that is the case we try to move
+ * it to a more convenient place: BMIPS_WARM_RESTART_VEC @ 0x8000_0380.
+ ***********************************************************************/
+
+LEAF(bmips_smp_movevec)
+	la	k0, 1f
+	li	k1, CKSEG1
+	or	k0, k1
+	jr	k0
+
+1:
+	/* clear IV, pending IPIs */
+	mtc0	zero, CP0_CAUSE
+
+	/* re-enable IRQs to wait for SW1 */
+	li	k0, ST0_IE | ST0_BEV | STATUSF_IP1
+	mtc0	k0, CP0_STATUS
+
+	/* set up CPU1 CBR; move BASE to 0xa000_0000 */
+	li	k0, 0xff400000
+	mtc0	k0, $22, 6
+	/* set up relocation vector address based on thread ID */
+	mfc0	k1, $22, 3
+	srl	k1, 16
+	andi	k1, 0x8000
+	or	k1, CKSEG1 | BMIPS_RELO_VECTOR_CONTROL_0
+	or	k0, k1
+	li	k1, 0xa0080000
+	sw	k1, 0(k0)
+
+	/* wait here for SW1 interrupt from bmips_boot_secondary() */
+	wait
+
+	la	k0, bmips_reset_nmi_vec
+	li	k1, CKSEG1
+	or	k0, k1
+	jr	k0
+END(bmips_smp_movevec)
+
+/***********************************************************************
+ * Reset/NMI vector
+ * For BMIPS processors that can relocate their exception vectors, this
+ * entire function gets copied to 0x8000_0000.
+ ***********************************************************************/
+
+NESTED(bmips_reset_nmi_vec, PT_SIZE, sp)
+	.set	push
+	.set	noat
+	.align	4
+
+#ifdef CONFIG_SMP
+	/* if the NMI bit is clear, assume this is a CPU1 reset instead */
+	li	k1, (1 << 19)
+	mfc0	k0, CP0_STATUS
+	and	k0, k1
+	beqz	k0, soft_reset
+
+#if defined(CONFIG_CPU_BMIPS5000)
+	mfc0	k0, CP0_PRID
+	li	k1, PRID_IMP_BMIPS5000
+	/* mask with PRID_IMP_BMIPS5000 to cover both variants */
+	andi	k0, PRID_IMP_BMIPS5000
+	bne	k0, k1, 1f
+
+	/* if we're not on core 0, this must be the SMP boot signal */
+	li	k1, (3 << 25)
+	mfc0	k0, $22
+	and	k0, k1
+	bnez	k0, bmips_smp_entry
+1:
+#endif /* CONFIG_CPU_BMIPS5000 */
+#endif /* CONFIG_SMP */
+
+	/* nope, it's just a regular NMI */
+	SAVE_ALL
+	move	a0, sp
+
+	/* clear EXL, ERL, BEV so that TLB refills still work */
+	mfc0	k0, CP0_STATUS
+	li	k1, ST0_ERL | ST0_EXL | ST0_BEV | ST0_IE
+	or	k0, k1
+	xor	k0, k1
+	mtc0	k0, CP0_STATUS
+	BARRIER
+
+	/* jump to the NMI handler function */
+	la	k0, nmi_handler
+	jr	k0
+
+	RESTORE_ALL
+	.set	arch=r4000
+	eret
+
+#ifdef CONFIG_SMP
+soft_reset:
+
+#if defined(CONFIG_CPU_BMIPS5000)
+	mfc0	k0, CP0_PRID
+	andi	k0, 0xff00
+	li	k1, PRID_IMP_BMIPS5200
+	bne	k0, k1, bmips_smp_entry
+
+        /* if running on TP 1, jump  to  bmips_smp_entry */
+        mfc0    k0, $22
+        li      k1, (1 << 24)
+        and     k1, k0
+        bnez    k1, bmips_smp_entry
+        nop
+
+        /*
+         * running on TP0, can not be core 0 (the boot core).
+         * Check for soft reset.  Indicates a warm boot
+         */
+        mfc0    k0, $12
+        li      k1, (1 << 20)
+        and     k0, k1
+        beqz    k0, bmips_smp_entry
+
+        /*
+         * Warm boot.
+         * Cache init is only done on TP0
+         */
+        la      k0, bmips_5xxx_init
+        jalr    k0
+        nop
+
+        b       bmips_smp_entry
+        nop
+#endif
+
+/***********************************************************************
+ * CPU1 reset vector (used for the initial boot only)
+ * This is still part of bmips_reset_nmi_vec().
+ ***********************************************************************/
+
+bmips_smp_entry:
+
+	/* set up CP0 STATUS; enable FPU */
+	li	k0, 0x30000000
+	mtc0	k0, CP0_STATUS
+	BARRIER
+
+	/* set local CP0 CONFIG to make kseg0 cacheable, write-back */
+	mfc0	k0, CP0_CONFIG
+	ori	k0, 0x07
+	xori	k0, 0x04
+	mtc0	k0, CP0_CONFIG
+
+	mfc0	k0, CP0_PRID
+	andi	k0, 0xff00
+#if defined(CONFIG_CPU_BMIPS4350) || defined(CONFIG_CPU_BMIPS4380)
+	li	k1, PRID_IMP_BMIPS43XX
+	bne	k0, k1, 2f
+
+	/* initialize CPU1's local I-cache */
+	li	k0, 0x80000000
+	li	k1, 0x80010000
+	mtc0	zero, $28
+	mtc0	zero, $28, 1
+	BARRIER
+
+1:	cache	Index_Store_Tag_I, 0(k0)
+	addiu	k0, 16
+	bne	k0, k1, 1b
+
+	b	3f
+2:
+#endif /* CONFIG_CPU_BMIPS4350 || CONFIG_CPU_BMIPS4380 */
+#if defined(CONFIG_CPU_BMIPS5000)
+	/* mask with PRID_IMP_BMIPS5000 to cover both variants */
+	li	k1, PRID_IMP_BMIPS5000
+	andi	k0, PRID_IMP_BMIPS5000
+	bne	k0, k1, 3f
+
+	/* set exception vector base */
+	la	k0, ebase
+	lw	k0, 0(k0)
+	mtc0	k0, $15, 1
+	BARRIER
+#endif /* CONFIG_CPU_BMIPS5000 */
+3:
+	/* jump back to kseg0 in case we need to remap the kseg1 area */
+	la	k0, 1f
+	jr	k0
+1:
+	la	k0, bmips_enable_xks01
+	jalr	k0
+
+	/* use temporary stack to set up upper memory TLB */
+	li	sp, BMIPS_WARM_RESTART_VEC
+	la	k0, plat_wired_tlb_setup
+	jalr	k0
+
+	/* switch to permanent stack and continue booting */
+
+	.global bmips_secondary_reentry
+bmips_secondary_reentry:
+	la	k0, bmips_smp_boot_sp
+	lw	sp, 0(k0)
+	la	k0, bmips_smp_boot_gp
+	lw	gp, 0(k0)
+	la	k0, start_secondary
+	jr	k0
+
+#endif /* CONFIG_SMP */
+
+	.align	4
+	.global bmips_reset_nmi_vec_end
+bmips_reset_nmi_vec_end:
+
+END(bmips_reset_nmi_vec)
+
+	.set	pop
+
+/***********************************************************************
+ * CPU1 warm restart vector (used for second and subsequent boots).
+ * Also used for S2 standby recovery (PM).
+ * This entire function gets copied to (BMIPS_WARM_RESTART_VEC)
+ ***********************************************************************/
+
+LEAF(bmips_smp_int_vec)
+
+	.align	4
+	mfc0	k0, CP0_STATUS
+	ori	k0, 0x01
+	xori	k0, 0x01
+	mtc0	k0, CP0_STATUS
+	eret
+
+	.align	4
+	.global bmips_smp_int_vec_end
+bmips_smp_int_vec_end:
+
+END(bmips_smp_int_vec)
+
+/***********************************************************************
+ * XKS01 support
+ * Certain CPUs support extending kseg0 to 1024MB.
+ ***********************************************************************/
+
+LEAF(bmips_enable_xks01)
+
+#if defined(CONFIG_XKS01)
+	mfc0	t0, CP0_PRID
+	andi	t2, t0, 0xff00
+#if defined(CONFIG_CPU_BMIPS4380)
+	li	t1, PRID_IMP_BMIPS43XX
+	bne	t2, t1, 1f
+
+	andi	t0, 0xff
+	addiu	t1, t0, -PRID_REV_BMIPS4380_HI
+	bgtz	t1, 2f
+	addiu	t0, -PRID_REV_BMIPS4380_LO
+	bltz	t0, 2f
+
+	mfc0	t0, $22, 3
+	li	t1, 0x1ff0
+	li	t2, (1 << 12) | (1 << 9)
+	or	t0, t1
+	xor	t0, t1
+	or	t0, t2
+	mtc0	t0, $22, 3
+	BARRIER
+	b	2f
+1:
+#endif /* CONFIG_CPU_BMIPS4380 */
+#if defined(CONFIG_CPU_BMIPS5000)
+	li	t1, PRID_IMP_BMIPS5000
+	/* mask with PRID_IMP_BMIPS5000 to cover both variants */
+	andi	t2, PRID_IMP_BMIPS5000
+	bne	t2, t1, 2f
+
+	mfc0	t0, $22, 5
+	li	t1, 0x01ff
+	li	t2, (1 << 8) | (1 << 5)
+	or	t0, t1
+	xor	t0, t1
+	or	t0, t2
+	mtc0	t0, $22, 5
+	BARRIER
+#endif /* CONFIG_CPU_BMIPS5000 */
+2:
+#endif /* defined(CONFIG_XKS01) */
+
+	jr	ra
+
+END(bmips_enable_xks01)