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, 157 insertions, 0 deletions

diff --git a/arch/mips/mm/cex-sb1.S b/arch/mips/mm/cex-sb1.S
new file mode 100644
index 000000000..85c6e6a40
--- /dev/null
+++ b/arch/mips/mm/cex-sb1.S
@@ -0,0 +1,157 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2001,2002,2003 Broadcom Corporation
+ */
+
+#include <asm/asm.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+#include <asm/stackframe.h>
+#include <asm/cacheops.h>
+#include <asm/sibyte/board.h>
+
+#define C0_ERRCTL     $26	      /* CP0: Error info */
+#define C0_CERR_I     $27	      /* CP0: Icache error */
+#define C0_CERR_D     $27,1	      /* CP0: Dcache error */
+
+	/*
+	 * Based on SiByte sample software cache-err/cerr.S
+	 * CVS revision 1.8.  Only the 'unrecoverable' case
+	 * is changed.
+	 */
+
+	.set	mips64
+	.set	noreorder
+	.set	noat
+
+	/*
+	 * sb1_cerr_vec: code to be copied to the Cache Error
+	 * Exception vector.  The code must be pushed out to memory
+	 * (either by copying to Kseg0 and Kseg1 both, or by flushing
+	 * the L1 and L2) since it is fetched as 0xa0000100.
+	 *
+	 * NOTE: Be sure this handler is at most 28 instructions long
+	 * since the final 16 bytes of the exception vector memory
+	 * (0x170-0x17f) are used to preserve k0, k1, and ra.
+	 */
+
+LEAF(except_vec2_sb1)
+	/*
+	 * If this error is recoverable, we need to exit the handler
+	 * without having dirtied any registers.  To do this,
+	 * save/restore k0 and k1 from low memory (Useg is direct
+	 * mapped while ERL=1). Note that we can't save to a
+	 * CPU-specific location without ruining a register in the
+	 * process.  This means we are vulnerable to data corruption
+	 * whenever the handler is reentered by a second CPU.
+	 */
+	sd	k0,0x170($0)
+	sd	k1,0x178($0)
+
+#ifdef CONFIG_SB1_CEX_ALWAYS_FATAL
+	j	handle_vec2_sb1
+	 nop
+#else
+	/*
+	 * M_ERRCTL_RECOVERABLE is bit 31, which makes it easy to tell
+	 * if we can fast-path out of here for a h/w-recovered error.
+	 */
+	mfc0	k1,C0_ERRCTL
+	bgtz	k1,attempt_recovery
+	 sll	k0,k1,1
+
+recovered_dcache:
+	/*
+	 * Unlock CacheErr-D (which in turn unlocks CacheErr-DPA).
+	 * Ought to log the occurrence of this recovered dcache error.
+	 */
+	b	recovered
+	 mtc0	$0,C0_CERR_D
+
+attempt_recovery:
+	/*
+	 * k0 has C0_ERRCTL << 1, which puts 'DC' at bit 31.  Any
+	 * Dcache errors we can recover from will take more extensive
+	 * processing.	For now, they are considered "unrecoverable".
+	 * Note that 'DC' becoming set (outside of ERL mode) will
+	 * cause 'IC' to clear; so if there's an Icache error, we'll
+	 * only find out about it if we recover from this error and
+	 * continue executing.
+	 */
+	bltz	k0,unrecoverable
+	 sll	k0,1
+
+	/*
+	 * k0 has C0_ERRCTL << 2, which puts 'IC' at bit 31.  If an
+	 * Icache error isn't indicated, I'm not sure why we got here.
+	 * Consider that case "unrecoverable" for now.
+	 */
+	bgez	k0,unrecoverable
+
+attempt_icache_recovery:
+	/*
+	 * External icache errors are due to uncorrectable ECC errors
+	 * in the L2 cache or Memory Controller and cannot be
+	 * recovered here.
+	 */
+	 mfc0	k0,C0_CERR_I		/* delay slot */
+	li	k1,1 << 26		/* ICACHE_EXTERNAL */
+	and	k1,k0
+	bnez	k1,unrecoverable
+	 andi	k0,0x1fe0
+
+	/*
+	 * Since the error is internal, the 'IDX' field from
+	 * CacheErr-I is valid and we can just invalidate all blocks
+	 * in that set.
+	 */
+	cache	Index_Invalidate_I,(0<<13)(k0)
+	cache	Index_Invalidate_I,(1<<13)(k0)
+	cache	Index_Invalidate_I,(2<<13)(k0)
+	cache	Index_Invalidate_I,(3<<13)(k0)
+
+	/* Ought to log this recovered icache error */
+
+recovered:
+	/* Restore the saved registers */
+	ld	k0,0x170($0)
+	ld	k1,0x178($0)
+	eret
+
+unrecoverable:
+	/* Unrecoverable Icache or Dcache error; log it and/or fail */
+	j	handle_vec2_sb1
+	 nop
+#endif
+
+END(except_vec2_sb1)
+
+	LEAF(handle_vec2_sb1)
+	mfc0	k0,CP0_CONFIG
+	li	k1,~CONF_CM_CMASK
+	and	k0,k0,k1
+	ori	k0,k0,CONF_CM_UNCACHED
+	mtc0	k0,CP0_CONFIG
+
+	SSNOP
+	SSNOP
+	SSNOP
+	SSNOP
+	bnezl	$0, 1f
+1:
+	mfc0	k0, CP0_STATUS
+	sll	k0, k0, 3			# check CU0 (kernel?)
+	bltz	k0, 2f
+	 nop
+
+	/* Get a valid Kseg0 stack pointer.  Any task's stack pointer
+	 * will do, although if we ever want to resume execution we
+	 * better not have corrupted any state. */
+	get_saved_sp
+	move	sp, k1
+
+2:
+	j	sb1_cache_error
+	 nop
+
+	END(handle_vec2_sb1)