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, 250 insertions, 0 deletions

diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h
new file mode 100644
index 000000000..65628423b
--- /dev/null
+++ b/drivers/pinctrl/intel/pinctrl-intel.h
@@ -0,0 +1,250 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Core pinctrl/GPIO driver for Intel GPIO controllers
+ *
+ * Copyright (C) 2015, Intel Corporation
+ * Authors: Mathias Nyman <mathias.nyman@linux.intel.com>
+ *          Mika Westerberg <mika.westerberg@linux.intel.com>
+ */
+
+#ifndef PINCTRL_INTEL_H
+#define PINCTRL_INTEL_H
+
+#include <linux/bits.h>
+#include <linux/compiler_types.h>
+#include <linux/gpio/driver.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/pm.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/spinlock_types.h>
+
+struct platform_device;
+struct device;
+
+/**
+ * struct intel_pingroup - Description about group of pins
+ * @grp: Generic data of the pin group (name and pins)
+ * @mode: Native mode in which the group is muxed out @pins. Used if @modes is %NULL.
+ * @modes: If not %NULL this will hold mode for each pin in @pins
+ */
+struct intel_pingroup {
+	struct pingroup grp;
+	unsigned short mode;
+	const unsigned int *modes;
+};
+
+/**
+ * struct intel_function - Description about a function
+ * @name: Name of the function
+ * @groups: An array of groups for this function
+ * @ngroups: Number of groups in @groups
+ */
+struct intel_function {
+	const char *name;
+	const char * const *groups;
+	size_t ngroups;
+};
+
+/**
+ * struct intel_padgroup - Hardware pad group information
+ * @reg_num: GPI_IS register number
+ * @base: Starting pin of this group
+ * @size: Size of this group (maximum is 32).
+ * @gpio_base: Starting GPIO base of this group
+ * @padown_num: PAD_OWN register number (assigned by the core driver)
+ *
+ * If pad groups of a community are not the same size, use this structure
+ * to specify them.
+ */
+struct intel_padgroup {
+	unsigned int reg_num;
+	unsigned int base;
+	unsigned int size;
+	int gpio_base;
+	unsigned int padown_num;
+};
+
+/**
+ * enum - Special treatment for GPIO base in pad group
+ *
+ * @INTEL_GPIO_BASE_ZERO:	force GPIO base to be 0
+ * @INTEL_GPIO_BASE_NOMAP:	no GPIO mapping should be created
+ * @INTEL_GPIO_BASE_MATCH:	matches with starting pin number
+ */
+enum {
+	INTEL_GPIO_BASE_ZERO	= -2,
+	INTEL_GPIO_BASE_NOMAP	= -1,
+	INTEL_GPIO_BASE_MATCH	= 0,
+};
+
+/**
+ * struct intel_community - Intel pin community description
+ * @barno: MMIO BAR number where registers for this community reside
+ * @padown_offset: Register offset of PAD_OWN register from @regs. If %0
+ *                 then there is no support for owner.
+ * @padcfglock_offset: Register offset of PADCFGLOCK from @regs. If %0 then
+ *                     locking is not supported.
+ * @hostown_offset: Register offset of HOSTSW_OWN from @regs. If %0 then it
+ *                  is assumed that the host owns the pin (rather than
+ *                  ACPI).
+ * @is_offset: Register offset of GPI_IS from @regs.
+ * @ie_offset: Register offset of GPI_IE from @regs.
+ * @features: Additional features supported by the hardware
+ * @pin_base: Starting pin of pins in this community
+ * @npins: Number of pins in this community
+ * @gpp_size: Maximum number of pads in each group, such as PADCFGLOCK,
+ *            HOSTSW_OWN, GPI_IS, GPI_IE. Used when @gpps is %NULL.
+ * @gpp_num_padown_regs: Number of pad registers each pad group consumes at
+ *			 minimum. Use %0 if the number of registers can be
+ *			 determined by the size of the group.
+ * @gpps: Pad groups if the controller has variable size pad groups
+ * @ngpps: Number of pad groups in this community
+ * @pad_map: Optional non-linear mapping of the pads
+ * @nirqs: Optional total number of IRQs this community can generate
+ * @acpi_space_id: Optional address space ID for ACPI OpRegion handler
+ * @regs: Community specific common registers (reserved for core driver)
+ * @pad_regs: Community specific pad registers (reserved for core driver)
+ *
+ * In some of Intel GPIO host controllers this driver supports each pad group
+ * is of equal size (except the last one). In that case the driver can just
+ * fill in @gpp_size field and let the core driver to handle the rest. If
+ * the controller has pad groups of variable size the client driver can
+ * pass custom @gpps and @ngpps instead.
+ */
+struct intel_community {
+	unsigned int barno;
+	unsigned int padown_offset;
+	unsigned int padcfglock_offset;
+	unsigned int hostown_offset;
+	unsigned int is_offset;
+	unsigned int ie_offset;
+	unsigned int features;
+	unsigned int pin_base;
+	size_t npins;
+	unsigned int gpp_size;
+	unsigned int gpp_num_padown_regs;
+	const struct intel_padgroup *gpps;
+	size_t ngpps;
+	const unsigned int *pad_map;
+	unsigned short nirqs;
+	unsigned short acpi_space_id;
+
+	/* Reserved for the core driver */
+	void __iomem *regs;
+	void __iomem *pad_regs;
+};
+
+/* Additional features supported by the hardware */
+#define PINCTRL_FEATURE_DEBOUNCE	BIT(0)
+#define PINCTRL_FEATURE_1K_PD		BIT(1)
+#define PINCTRL_FEATURE_GPIO_HW_INFO	BIT(2)
+#define PINCTRL_FEATURE_PWM		BIT(3)
+#define PINCTRL_FEATURE_BLINK		BIT(4)
+#define PINCTRL_FEATURE_EXP		BIT(5)
+
+/**
+ * PIN_GROUP - Declare a pin group
+ * @n: Name of the group
+ * @p: An array of pins this group consists
+ * @m: Mode which the pins are put when this group is active. Can be either
+ *     a single integer or an array of integers in which case mode is per
+ *     pin.
+ */
+#define PIN_GROUP(n, p, m)								\
+	{										\
+		.grp = PINCTRL_PINGROUP((n), (p), ARRAY_SIZE((p))),			\
+		.mode = __builtin_choose_expr(__builtin_constant_p((m)), (m), 0),	\
+		.modes = __builtin_choose_expr(__builtin_constant_p((m)), NULL, (m)),	\
+	}
+
+#define FUNCTION(n, g)				\
+	{					\
+		.name = (n),			\
+		.groups = (g),			\
+		.ngroups = ARRAY_SIZE((g)),	\
+	}
+
+/**
+ * struct intel_pinctrl_soc_data - Intel pin controller per-SoC configuration
+ * @uid: ACPI _UID for the probe driver use if needed
+ * @pins: Array if pins this pinctrl controls
+ * @npins: Number of pins in the array
+ * @groups: Array of pin groups
+ * @ngroups: Number of groups in the array
+ * @functions: Array of functions
+ * @nfunctions: Number of functions in the array
+ * @communities: Array of communities this pinctrl handles
+ * @ncommunities: Number of communities in the array
+ *
+ * The @communities is used as a template by the core driver. It will make
+ * copy of all communities and fill in rest of the information.
+ */
+struct intel_pinctrl_soc_data {
+	const char *uid;
+	const struct pinctrl_pin_desc *pins;
+	size_t npins;
+	const struct intel_pingroup *groups;
+	size_t ngroups;
+	const struct intel_function *functions;
+	size_t nfunctions;
+	const struct intel_community *communities;
+	size_t ncommunities;
+};
+
+const struct intel_pinctrl_soc_data *intel_pinctrl_get_soc_data(struct platform_device *pdev);
+
+struct intel_pad_context;
+struct intel_community_context;
+
+/**
+ * struct intel_pinctrl_context - context to be saved during suspend-resume
+ * @pads: Opaque context per pad (driver dependent)
+ * @communities: Opaque context per community (driver dependent)
+ */
+struct intel_pinctrl_context {
+	struct intel_pad_context *pads;
+	struct intel_community_context *communities;
+};
+
+/**
+ * struct intel_pinctrl - Intel pinctrl private structure
+ * @dev: Pointer to the device structure
+ * @lock: Lock to serialize register access
+ * @pctldesc: Pin controller description
+ * @pctldev: Pointer to the pin controller device
+ * @chip: GPIO chip in this pin controller
+ * @soc: SoC/PCH specific pin configuration data
+ * @communities: All communities in this pin controller
+ * @ncommunities: Number of communities in this pin controller
+ * @context: Configuration saved over system sleep
+ * @irq: pinctrl/GPIO chip irq number
+ */
+struct intel_pinctrl {
+	struct device *dev;
+	raw_spinlock_t lock;
+	struct pinctrl_desc pctldesc;
+	struct pinctrl_dev *pctldev;
+	struct gpio_chip chip;
+	const struct intel_pinctrl_soc_data *soc;
+	struct intel_community *communities;
+	size_t ncommunities;
+	struct intel_pinctrl_context context;
+	int irq;
+};
+
+int intel_pinctrl_probe_by_hid(struct platform_device *pdev);
+int intel_pinctrl_probe_by_uid(struct platform_device *pdev);
+
+#ifdef CONFIG_PM_SLEEP
+int intel_pinctrl_suspend_noirq(struct device *dev);
+int intel_pinctrl_resume_noirq(struct device *dev);
+#endif
+
+#define INTEL_PINCTRL_PM_OPS(_name)					\
+const struct dev_pm_ops _name = {					\
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(intel_pinctrl_suspend_noirq,	\
+				      intel_pinctrl_resume_noirq)	\
+}
+
+#endif /* PINCTRL_INTEL_H */