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, 169 insertions, 0 deletions

diff --git a/drivers/net/ethernet/apple/mace.h b/drivers/net/ethernet/apple/mace.h
new file mode 100644
index 000000000..697f71cf1
--- /dev/null
+++ b/drivers/net/ethernet/apple/mace.h
@@ -0,0 +1,169 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * mace.h - definitions for the registers in the Am79C940 MACE
+ * (Medium Access Control for Ethernet) controller.
+ *
+ * Copyright (C) 1996 Paul Mackerras.
+ */
+
+#define REG(x)	volatile unsigned char x; char x ## _pad[15]
+
+struct mace {
+	REG(rcvfifo);		/* receive FIFO */
+	REG(xmtfifo);		/* transmit FIFO */
+	REG(xmtfc);		/* transmit frame control */
+	REG(xmtfs);		/* transmit frame status */
+	REG(xmtrc);		/* transmit retry count */
+	REG(rcvfc);		/* receive frame control */
+	REG(rcvfs);		/* receive frame status (4 bytes) */
+	REG(fifofc);		/* FIFO frame count */
+	REG(ir);		/* interrupt register */
+	REG(imr);		/* interrupt mask register */
+	REG(pr);		/* poll register */
+	REG(biucc);		/* bus interface unit config control */
+	REG(fifocc);		/* FIFO configuration control */
+	REG(maccc);		/* medium access control config control */
+	REG(plscc);		/* phys layer signalling config control */
+	REG(phycc);		/* physical configuration control */
+	REG(chipid_lo);		/* chip ID, lsb */
+	REG(chipid_hi);		/* chip ID, msb */
+	REG(iac);		/* internal address config */
+	REG(reg19);
+	REG(ladrf);		/* logical address filter (8 bytes) */
+	REG(padr);		/* physical address (6 bytes) */
+	REG(reg22);
+	REG(reg23);
+	REG(mpc);		/* missed packet count (clears when read) */
+	REG(reg25);
+	REG(rntpc);		/* runt packet count (clears when read) */
+	REG(rcvcc);		/* recv collision count (clears when read) */
+	REG(reg28);
+	REG(utr);		/* user test reg */
+	REG(reg30);
+	REG(reg31);
+};
+
+/* Bits in XMTFC */
+#define DRTRY		0x80	/* don't retry transmission after collision */
+#define DXMTFCS		0x08	/* don't append FCS to transmitted frame */
+#define AUTO_PAD_XMIT	0x01	/* auto-pad short packets on transmission */
+
+/* Bits in XMTFS: only valid when XMTSV is set in PR and XMTFS */
+#define XMTSV		0x80	/* transmit status (i.e. XMTFS) valid */
+#define UFLO		0x40	/* underflow - xmit fifo ran dry */
+#define LCOL		0x20	/* late collision (transmission aborted) */
+#define MORE		0x10	/* 2 or more retries needed to xmit frame */
+#define ONE		0x08	/* 1 retry needed to xmit frame */
+#define DEFER		0x04	/* MACE had to defer xmission (enet busy) */
+#define LCAR		0x02	/* loss of carrier (transmission aborted) */
+#define RTRY		0x01	/* too many retries (transmission aborted) */
+
+/* Bits in XMTRC: only valid when XMTSV is set in PR (and XMTFS) */
+#define EXDEF		0x80	/* had to defer for excessive time */
+#define RETRY_MASK	0x0f	/* number of retries (0 - 15) */
+
+/* Bits in RCVFC */
+#define LLRCV		0x08	/* low latency receive: early DMA request */
+#define M_RBAR		0x04	/* sets function of EAM/R pin */
+#define AUTO_STRIP_RCV	0x01	/* auto-strip short LLC frames on recv */
+
+/*
+ * Bits in RCVFS.  After a frame is received, four bytes of status
+ * are automatically read from this register and appended to the frame
+ * data in memory.  These are:
+ * Byte 0 and 1: message byte count and frame status
+ * Byte 2: runt packet count
+ * Byte 3: receive collision count
+ */
+#define RS_OFLO		0x8000	/* receive FIFO overflowed */
+#define RS_CLSN		0x4000	/* received frame suffered (late) collision */
+#define RS_FRAMERR	0x2000	/* framing error flag */
+#define RS_FCSERR	0x1000	/* frame had FCS error */
+#define RS_COUNT	0x0fff	/* mask for byte count field */
+
+/* Bits (fields) in FIFOFC */
+#define RCVFC_SH	4	/* receive frame count in FIFO */
+#define RCVFC_MASK	0x0f
+#define XMTFC_SH	0	/* transmit frame count in FIFO */
+#define XMTFC_MASK	0x0f
+
+/*
+ * Bits in IR and IMR.  The IR clears itself when read.
+ * Setting a bit in the IMR will disable the corresponding interrupt.
+ */
+#define JABBER		0x80	/* jabber error - 10baseT xmission too long */
+#define BABBLE		0x40	/* babble - xmitter xmitting for too long */
+#define CERR		0x20	/* collision err - no SQE test (heartbeat) */
+#define RCVCCO		0x10	/* RCVCC overflow */
+#define RNTPCO		0x08	/* RNTPC overflow */
+#define MPCO		0x04	/* MPC overflow */
+#define RCVINT		0x02	/* receive interrupt */
+#define XMTINT		0x01	/* transmitter interrupt */
+
+/* Bits in PR */
+#define XMTSV		0x80	/* XMTFS valid (same as in XMTFS) */
+#define TDTREQ		0x40	/* set when xmit fifo is requesting data */
+#define RDTREQ		0x20	/* set when recv fifo requests data xfer */
+
+/* Bits in BIUCC */
+#define BSWP		0x40	/* byte swap, i.e. big-endian bus */
+#define XMTSP_4		0x00	/* start xmitting when 4 bytes in FIFO */
+#define XMTSP_16	0x10	/* start xmitting when 16 bytes in FIFO */
+#define XMTSP_64	0x20	/* start xmitting when 64 bytes in FIFO */
+#define XMTSP_112	0x30	/* start xmitting when 112 bytes in FIFO */
+#define SWRST		0x01	/* software reset */
+
+/* Bits in FIFOCC */
+#define XMTFW_8		0x00	/* xmit fifo watermark = 8 words free */
+#define XMTFW_16	0x40	/*  16 words free */
+#define XMTFW_32	0x80	/*  32 words free */
+#define RCVFW_16	0x00	/* recv fifo watermark = 16 bytes avail */
+#define RCVFW_32	0x10	/*  32 bytes avail */
+#define RCVFW_64	0x20	/*  64 bytes avail */
+#define XMTFWU		0x08	/* xmit fifo watermark update enable */
+#define RCVFWU		0x04	/* recv fifo watermark update enable */
+#define XMTBRST		0x02	/* enable transmit burst mode */
+#define RCVBRST		0x01	/* enable receive burst mode */
+
+/* Bits in MACCC */
+#define PROM		0x80	/* promiscuous mode */
+#define DXMT2PD		0x40	/* disable xmit two-part deferral algorithm */
+#define EMBA		0x20	/* enable modified backoff algorithm */
+#define DRCVPA		0x08	/* disable receiving physical address */
+#define DRCVBC		0x04	/* disable receiving broadcasts */
+#define ENXMT		0x02	/* enable transmitter */
+#define ENRCV		0x01	/* enable receiver */
+
+/* Bits in PLSCC */
+#define XMTSEL		0x08	/* select DO+/DO- state when idle */
+#define PORTSEL_AUI	0x00	/* select AUI port */
+#define PORTSEL_10T	0x02	/* select 10Base-T port */
+#define PORTSEL_DAI	0x04	/* select DAI port */
+#define PORTSEL_GPSI	0x06	/* select GPSI port */
+#define ENPLSIO		0x01	/* enable optional PLS I/O pins */
+
+/* Bits in PHYCC */
+#define LNKFL		0x80	/* reports 10Base-T link failure */
+#define DLNKTST		0x40	/* disable 10Base-T link test */
+#define REVPOL		0x20	/* 10Base-T receiver polarity reversed */
+#define DAPC		0x10	/* disable auto receiver polarity correction */
+#define LRT		0x08	/* low receive threshold for long links */
+#define ASEL		0x04	/* auto-select AUI or 10Base-T port */
+#define RWAKE		0x02	/* remote wake function */
+#define AWAKE		0x01	/* auto wake function */
+
+/* Bits in IAC */
+#define ADDRCHG		0x80	/* request address change */
+#define PHYADDR		0x04	/* access physical address */
+#define LOGADDR		0x02	/* access multicast filter */
+
+/* Bits in UTR */
+#define RTRE		0x80	/* reserved test register enable. DON'T SET. */
+#define RTRD		0x40	/* reserved test register disable.  Sticky */
+#define RPAC		0x20	/* accept runt packets */
+#define FCOLL		0x10	/* force collision */
+#define RCVFCSE		0x08	/* receive FCS enable */
+#define LOOP_NONE	0x00	/* no loopback */
+#define LOOP_EXT	0x02	/* external loopback */
+#define LOOP_INT	0x04	/* internal loopback, excludes MENDEC */
+#define LOOP_MENDEC	0x06	/* internal loopback, includes MENDEC */