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, 230 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/uninorth.h b/arch/powerpc/include/asm/uninorth.h
new file mode 100644
index 000000000..e278299b9
--- /dev/null
+++ b/arch/powerpc/include/asm/uninorth.h
@@ -0,0 +1,230 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * uninorth.h: definitions for using the "UniNorth" host bridge chip
+ *             from Apple. This chip is used on "Core99" machines
+ *	       This also includes U2 used on more recent MacRISC2/3
+ *             machines and U3 (G5) 
+ *
+ */
+#ifdef __KERNEL__
+#ifndef __ASM_UNINORTH_H__
+#define __ASM_UNINORTH_H__
+
+/*
+ * Uni-N and U3 config space reg. definitions
+ *
+ * (Little endian)
+ */
+
+/* Address ranges selection. This one should work with Bandit too */
+/* Not U3 */
+#define UNI_N_ADDR_SELECT		0x48
+#define UNI_N_ADDR_COARSE_MASK		0xffff0000	/* 256Mb regions at *0000000 */
+#define UNI_N_ADDR_FINE_MASK		0x0000ffff	/*  16Mb regions at f*000000 */
+
+/* AGP registers */
+/* Not U3 */
+#define UNI_N_CFG_GART_BASE		0x8c
+#define UNI_N_CFG_AGP_BASE		0x90
+#define UNI_N_CFG_GART_CTRL		0x94
+#define UNI_N_CFG_INTERNAL_STATUS	0x98
+#define UNI_N_CFG_GART_DUMMY_PAGE	0xa4
+
+/* UNI_N_CFG_GART_CTRL bits definitions */
+#define UNI_N_CFG_GART_INVAL		0x00000001
+#define UNI_N_CFG_GART_ENABLE		0x00000100
+#define UNI_N_CFG_GART_2xRESET		0x00010000
+#define UNI_N_CFG_GART_DISSBADET	0x00020000
+/* The following seems to only be used only on U3 <j.glisse@gmail.com> */
+#define U3_N_CFG_GART_SYNCMODE		0x00040000
+#define U3_N_CFG_GART_PERFRD		0x00080000
+#define U3_N_CFG_GART_B2BGNT		0x00200000
+#define U3_N_CFG_GART_FASTDDR		0x00400000
+
+/* My understanding of UniNorth AGP as of UniNorth rev 1.0x,
+ * revision 1.5 (x4 AGP) may need further changes.
+ *
+ * AGP_BASE register contains the base address of the AGP aperture on
+ * the AGP bus. It doesn't seem to be visible to the CPU as of UniNorth 1.x,
+ * even if decoding of this address range is enabled in the address select
+ * register. Apparently, the only supported bases are 256Mb multiples
+ * (high 4 bits of that register).
+ *
+ * GART_BASE register appear to contain the physical address of the GART
+ * in system memory in the high address bits (page aligned), and the
+ * GART size in the low order bits (number of GART pages)
+ *
+ * The GART format itself is one 32bits word per physical memory page.
+ * This word contains, in little-endian format (!!!), the physical address
+ * of the page in the high bits, and what appears to be an "enable" bit
+ * in the LSB bit (0) that must be set to 1 when the entry is valid.
+ *
+ * Obviously, the GART is not cache coherent and so any change to it
+ * must be flushed to memory (or maybe just make the GART space non
+ * cachable). AGP memory itself doesn't seem to be cache coherent neither.
+ *
+ * In order to invalidate the GART (which is probably necessary to inval
+ * the bridge internal TLBs), the following sequence has to be written,
+ * in order, to the GART_CTRL register:
+ *
+ *   UNI_N_CFG_GART_ENABLE | UNI_N_CFG_GART_INVAL
+ *   UNI_N_CFG_GART_ENABLE
+ *   UNI_N_CFG_GART_ENABLE | UNI_N_CFG_GART_2xRESET
+ *   UNI_N_CFG_GART_ENABLE
+ *
+ * As far as AGP "features" are concerned, it looks like fast write may
+ * not be supported but this has to be confirmed.
+ *
+ * Turning on AGP seem to require a double invalidate operation, one before
+ * setting the AGP command register, on after.
+ *
+ * Turning off AGP seems to require the following sequence: first wait
+ * for the AGP to be idle by reading the internal status register, then
+ * write in that order to the GART_CTRL register:
+ *
+ *   UNI_N_CFG_GART_ENABLE | UNI_N_CFG_GART_INVAL
+ *   0
+ *   UNI_N_CFG_GART_2xRESET
+ *   0
+ */
+
+/*
+ * Uni-N memory mapped reg. definitions
+ *
+ * Those registers are Big-Endian !!
+ *
+ * Their meaning come from either Darwin and/or from experiments I made with
+ * the bootrom, I'm not sure about their exact meaning yet
+ *
+ */
+
+/* Version of the UniNorth chip */
+#define UNI_N_VERSION			0x0000		/* Known versions: 3,7 and 8 */
+
+#define UNI_N_VERSION_107		0x0003		/* 1.0.7 */
+#define UNI_N_VERSION_10A		0x0007		/* 1.0.10 */
+#define UNI_N_VERSION_150		0x0011		/* 1.5 */
+#define UNI_N_VERSION_200		0x0024		/* 2.0 */
+#define UNI_N_VERSION_PANGEA		0x00C0		/* Integrated U1 + K */
+#define UNI_N_VERSION_INTREPID		0x00D2		/* Integrated U2 + K */
+#define UNI_N_VERSION_300		0x0030		/* 3.0 (U3 on G5) */
+
+/* This register is used to enable/disable various clocks */
+#define UNI_N_CLOCK_CNTL		0x0020
+#define UNI_N_CLOCK_CNTL_PCI		0x00000001	/* PCI2 clock control */
+#define UNI_N_CLOCK_CNTL_GMAC		0x00000002	/* GMAC clock control */
+#define UNI_N_CLOCK_CNTL_FW		0x00000004	/* FireWire clock control */
+#define UNI_N_CLOCK_CNTL_ATA100		0x00000010	/* ATA-100 clock control (U2) */
+
+/* Power Management control */
+#define UNI_N_POWER_MGT			0x0030
+#define UNI_N_POWER_MGT_NORMAL		0x00
+#define UNI_N_POWER_MGT_IDLE2		0x01
+#define UNI_N_POWER_MGT_SLEEP		0x02
+
+/* This register is configured by Darwin depending on the UniN
+ * revision
+ */
+#define UNI_N_ARB_CTRL			0x0040
+#define UNI_N_ARB_CTRL_QACK_DELAY_SHIFT	15
+#define UNI_N_ARB_CTRL_QACK_DELAY_MASK	0x0e1f8000
+#define UNI_N_ARB_CTRL_QACK_DELAY	0x30
+#define UNI_N_ARB_CTRL_QACK_DELAY105	0x00
+
+/* This one _might_ return the CPU number of the CPU reading it;
+ * the bootROM decides whether to boot or to sleep/spinloop depending
+ * on this register being 0 or not
+ */
+#define UNI_N_CPU_NUMBER		0x0050
+
+/* This register appear to be read by the bootROM to decide what
+ *  to do on a non-recoverable reset (powerup or wakeup)
+ */
+#define UNI_N_HWINIT_STATE		0x0070
+#define UNI_N_HWINIT_STATE_SLEEPING	0x01
+#define UNI_N_HWINIT_STATE_RUNNING	0x02
+/* This last bit appear to be used by the bootROM to know the second
+ * CPU has started and will enter it's sleep loop with IP=0
+ */
+#define UNI_N_HWINIT_STATE_CPU1_FLAG	0x10000000
+
+/* This register controls AACK delay, which is set when 2004 iBook/PowerBook
+ * is in low speed mode.
+ */
+#define UNI_N_AACK_DELAY		0x0100
+#define UNI_N_AACK_DELAY_ENABLE		0x00000001
+
+/* Clock status for Intrepid */
+#define UNI_N_CLOCK_STOP_STATUS0	0x0150
+#define UNI_N_CLOCK_STOPPED_EXTAGP	0x00200000
+#define UNI_N_CLOCK_STOPPED_AGPDEL	0x00100000
+#define UNI_N_CLOCK_STOPPED_I2S0_45_49	0x00080000
+#define UNI_N_CLOCK_STOPPED_I2S0_18	0x00040000
+#define UNI_N_CLOCK_STOPPED_I2S1_45_49	0x00020000
+#define UNI_N_CLOCK_STOPPED_I2S1_18	0x00010000
+#define UNI_N_CLOCK_STOPPED_TIMER	0x00008000
+#define UNI_N_CLOCK_STOPPED_SCC_RTCLK18	0x00004000
+#define UNI_N_CLOCK_STOPPED_SCC_RTCLK32	0x00002000
+#define UNI_N_CLOCK_STOPPED_SCC_VIA32	0x00001000
+#define UNI_N_CLOCK_STOPPED_SCC_SLOT0	0x00000800
+#define UNI_N_CLOCK_STOPPED_SCC_SLOT1	0x00000400
+#define UNI_N_CLOCK_STOPPED_SCC_SLOT2	0x00000200
+#define UNI_N_CLOCK_STOPPED_PCI_FBCLKO	0x00000100
+#define UNI_N_CLOCK_STOPPED_VEO0	0x00000080
+#define UNI_N_CLOCK_STOPPED_VEO1	0x00000040
+#define UNI_N_CLOCK_STOPPED_USB0	0x00000020
+#define UNI_N_CLOCK_STOPPED_USB1	0x00000010
+#define UNI_N_CLOCK_STOPPED_USB2	0x00000008
+#define UNI_N_CLOCK_STOPPED_32		0x00000004
+#define UNI_N_CLOCK_STOPPED_45		0x00000002
+#define UNI_N_CLOCK_STOPPED_49		0x00000001
+
+#define UNI_N_CLOCK_STOP_STATUS1	0x0160
+#define UNI_N_CLOCK_STOPPED_PLL4REF	0x00080000
+#define UNI_N_CLOCK_STOPPED_CPUDEL	0x00040000
+#define UNI_N_CLOCK_STOPPED_CPU		0x00020000
+#define UNI_N_CLOCK_STOPPED_BUF_REFCKO	0x00010000
+#define UNI_N_CLOCK_STOPPED_PCI2	0x00008000
+#define UNI_N_CLOCK_STOPPED_FW		0x00004000
+#define UNI_N_CLOCK_STOPPED_GB		0x00002000
+#define UNI_N_CLOCK_STOPPED_ATA66	0x00001000
+#define UNI_N_CLOCK_STOPPED_ATA100	0x00000800
+#define UNI_N_CLOCK_STOPPED_MAX		0x00000400
+#define UNI_N_CLOCK_STOPPED_PCI1	0x00000200
+#define UNI_N_CLOCK_STOPPED_KLPCI	0x00000100
+#define UNI_N_CLOCK_STOPPED_USB0PCI	0x00000080
+#define UNI_N_CLOCK_STOPPED_USB1PCI	0x00000040
+#define UNI_N_CLOCK_STOPPED_USB2PCI	0x00000020
+#define UNI_N_CLOCK_STOPPED_7PCI1	0x00000008
+#define UNI_N_CLOCK_STOPPED_AGP		0x00000004
+#define UNI_N_CLOCK_STOPPED_PCI0	0x00000002
+#define UNI_N_CLOCK_STOPPED_18		0x00000001
+
+/* Intrepid registe to OF do-platform-clockspreading */
+#define UNI_N_CLOCK_SPREADING		0x190
+
+/* Uninorth 1.5 rev. has additional perf. monitor registers at 0xf00-0xf50 */
+
+
+/*
+ * U3 specific registers
+ */
+
+
+/* U3 Toggle */
+#define U3_TOGGLE_REG			0x00e0
+#define U3_PMC_START_STOP		0x0001
+#define U3_MPIC_RESET			0x0002
+#define U3_MPIC_OUTPUT_ENABLE		0x0004
+
+/* U3 API PHY Config 1 */
+#define U3_API_PHY_CONFIG_1		0x23030
+
+/* U3 HyperTransport registers */
+#define U3_HT_CONFIG_BASE      		0x70000
+#define U3_HT_LINK_COMMAND		0x100
+#define U3_HT_LINK_CONFIG		0x110
+#define U3_HT_LINK_FREQ			0x120
+
+#endif /* __ASM_UNINORTH_H__ */
+#endif /* __KERNEL__ */