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, 275 insertions, 0 deletions

diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c
new file mode 100644
index 000000000..e9fd13707
--- /dev/null
+++ b/drivers/regulator/wm8400-regulator.c
@@ -0,0 +1,275 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Regulator support for WM8400
+//
+// Copyright 2008 Wolfson Microelectronics PLC.
+//
+// Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+
+#include <linux/bug.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/regulator/driver.h>
+#include <linux/mfd/wm8400-private.h>
+
+static const struct linear_range wm8400_ldo_ranges[] = {
+	REGULATOR_LINEAR_RANGE(900000, 0, 14, 50000),
+	REGULATOR_LINEAR_RANGE(1700000, 15, 31, 100000),
+};
+
+static const struct regulator_ops wm8400_ldo_ops = {
+	.is_enabled = regulator_is_enabled_regmap,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.list_voltage = regulator_list_voltage_linear_range,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.map_voltage = regulator_map_voltage_linear_range,
+};
+
+static unsigned int wm8400_dcdc_get_mode(struct regulator_dev *dev)
+{
+	struct regmap *rmap = rdev_get_regmap(dev);
+	int offset = (rdev_get_id(dev) - WM8400_DCDC1) * 2;
+	u16 data[2];
+	int ret;
+
+	ret = regmap_bulk_read(rmap, WM8400_DCDC1_CONTROL_1 + offset, data, 2);
+	if (ret != 0)
+		return 0;
+
+	/* Datasheet: hibernate */
+	if (data[0] & WM8400_DC1_SLEEP)
+		return REGULATOR_MODE_STANDBY;
+
+	/* Datasheet: standby */
+	if (!(data[0] & WM8400_DC1_ACTIVE))
+		return REGULATOR_MODE_IDLE;
+
+	/* Datasheet: active with or without force PWM */
+	if (data[1] & WM8400_DC1_FRC_PWM)
+		return REGULATOR_MODE_FAST;
+	else
+		return REGULATOR_MODE_NORMAL;
+}
+
+static int wm8400_dcdc_set_mode(struct regulator_dev *dev, unsigned int mode)
+{
+	struct regmap *rmap = rdev_get_regmap(dev);
+	int offset = (rdev_get_id(dev) - WM8400_DCDC1) * 2;
+	int ret;
+
+	switch (mode) {
+	case REGULATOR_MODE_FAST:
+		/* Datasheet: active with force PWM */
+		ret = regmap_update_bits(rmap, WM8400_DCDC1_CONTROL_2 + offset,
+				      WM8400_DC1_FRC_PWM, WM8400_DC1_FRC_PWM);
+		if (ret != 0)
+			return ret;
+
+		return regmap_update_bits(rmap, WM8400_DCDC1_CONTROL_1 + offset,
+				       WM8400_DC1_ACTIVE | WM8400_DC1_SLEEP,
+				       WM8400_DC1_ACTIVE);
+
+	case REGULATOR_MODE_NORMAL:
+		/* Datasheet: active */
+		ret = regmap_update_bits(rmap, WM8400_DCDC1_CONTROL_2 + offset,
+				      WM8400_DC1_FRC_PWM, 0);
+		if (ret != 0)
+			return ret;
+
+		return regmap_update_bits(rmap, WM8400_DCDC1_CONTROL_1 + offset,
+				       WM8400_DC1_ACTIVE | WM8400_DC1_SLEEP,
+				       WM8400_DC1_ACTIVE);
+
+	case REGULATOR_MODE_IDLE:
+		/* Datasheet: standby */
+		return regmap_update_bits(rmap, WM8400_DCDC1_CONTROL_1 + offset,
+				       WM8400_DC1_ACTIVE | WM8400_DC1_SLEEP, 0);
+	default:
+		return -EINVAL;
+	}
+}
+
+static unsigned int wm8400_dcdc_get_optimum_mode(struct regulator_dev *dev,
+						 int input_uV, int output_uV,
+						 int load_uA)
+{
+	return REGULATOR_MODE_NORMAL;
+}
+
+static const struct regulator_ops wm8400_dcdc_ops = {
+	.is_enabled = regulator_is_enabled_regmap,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.list_voltage = regulator_list_voltage_linear,
+	.map_voltage = regulator_map_voltage_linear,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_mode = wm8400_dcdc_get_mode,
+	.set_mode = wm8400_dcdc_set_mode,
+	.get_optimum_mode = wm8400_dcdc_get_optimum_mode,
+};
+
+static struct regulator_desc regulators[] = {
+	{
+		.name = "LDO1",
+		.id = WM8400_LDO1,
+		.ops = &wm8400_ldo_ops,
+		.enable_reg = WM8400_LDO1_CONTROL,
+		.enable_mask = WM8400_LDO1_ENA,
+		.n_voltages = WM8400_LDO1_VSEL_MASK + 1,
+		.linear_ranges = wm8400_ldo_ranges,
+		.n_linear_ranges = ARRAY_SIZE(wm8400_ldo_ranges),
+		.vsel_reg = WM8400_LDO1_CONTROL,
+		.vsel_mask = WM8400_LDO1_VSEL_MASK,
+		.type = REGULATOR_VOLTAGE,
+		.owner = THIS_MODULE,
+	},
+	{
+		.name = "LDO2",
+		.id = WM8400_LDO2,
+		.ops = &wm8400_ldo_ops,
+		.enable_reg = WM8400_LDO2_CONTROL,
+		.enable_mask = WM8400_LDO2_ENA,
+		.n_voltages = WM8400_LDO2_VSEL_MASK + 1,
+		.linear_ranges = wm8400_ldo_ranges,
+		.n_linear_ranges = ARRAY_SIZE(wm8400_ldo_ranges),
+		.type = REGULATOR_VOLTAGE,
+		.vsel_reg = WM8400_LDO2_CONTROL,
+		.vsel_mask = WM8400_LDO2_VSEL_MASK,
+		.owner = THIS_MODULE,
+	},
+	{
+		.name = "LDO3",
+		.id = WM8400_LDO3,
+		.ops = &wm8400_ldo_ops,
+		.enable_reg = WM8400_LDO3_CONTROL,
+		.enable_mask = WM8400_LDO3_ENA,
+		.n_voltages = WM8400_LDO3_VSEL_MASK + 1,
+		.linear_ranges = wm8400_ldo_ranges,
+		.n_linear_ranges = ARRAY_SIZE(wm8400_ldo_ranges),
+		.vsel_reg = WM8400_LDO3_CONTROL,
+		.vsel_mask = WM8400_LDO3_VSEL_MASK,
+		.type = REGULATOR_VOLTAGE,
+		.owner = THIS_MODULE,
+	},
+	{
+		.name = "LDO4",
+		.id = WM8400_LDO4,
+		.ops = &wm8400_ldo_ops,
+		.enable_reg = WM8400_LDO4_CONTROL,
+		.enable_mask = WM8400_LDO4_ENA,
+		.n_voltages = WM8400_LDO4_VSEL_MASK + 1,
+		.linear_ranges = wm8400_ldo_ranges,
+		.n_linear_ranges = ARRAY_SIZE(wm8400_ldo_ranges),
+		.vsel_reg = WM8400_LDO4_CONTROL,
+		.vsel_mask = WM8400_LDO4_VSEL_MASK,
+		.type = REGULATOR_VOLTAGE,
+		.owner = THIS_MODULE,
+	},
+	{
+		.name = "DCDC1",
+		.id = WM8400_DCDC1,
+		.ops = &wm8400_dcdc_ops,
+		.enable_reg = WM8400_DCDC1_CONTROL_1,
+		.enable_mask = WM8400_DC1_ENA_MASK,
+		.n_voltages = WM8400_DC1_VSEL_MASK + 1,
+		.vsel_reg = WM8400_DCDC1_CONTROL_1,
+		.vsel_mask = WM8400_DC1_VSEL_MASK,
+		.min_uV = 850000,
+		.uV_step = 25000,
+		.type = REGULATOR_VOLTAGE,
+		.owner = THIS_MODULE,
+	},
+	{
+		.name = "DCDC2",
+		.id = WM8400_DCDC2,
+		.ops = &wm8400_dcdc_ops,
+		.enable_reg = WM8400_DCDC2_CONTROL_1,
+		.enable_mask = WM8400_DC2_ENA_MASK,
+		.n_voltages = WM8400_DC2_VSEL_MASK + 1,
+		.vsel_reg = WM8400_DCDC2_CONTROL_1,
+		.vsel_mask = WM8400_DC2_VSEL_MASK,
+		.min_uV = 850000,
+		.uV_step = 25000,
+		.type = REGULATOR_VOLTAGE,
+		.owner = THIS_MODULE,
+	},
+};
+
+static int wm8400_regulator_probe(struct platform_device *pdev)
+{
+	struct wm8400 *wm8400 = container_of(pdev, struct wm8400, regulators[pdev->id]);
+	struct regulator_config config = { };
+	struct regulator_dev *rdev;
+
+	config.dev = &pdev->dev;
+	config.init_data = dev_get_platdata(&pdev->dev);
+	config.driver_data = wm8400;
+	config.regmap = wm8400->regmap;
+
+	rdev = devm_regulator_register(&pdev->dev, &regulators[pdev->id],
+				       &config);
+	if (IS_ERR(rdev))
+		return PTR_ERR(rdev);
+
+	platform_set_drvdata(pdev, rdev);
+
+	return 0;
+}
+
+static struct platform_driver wm8400_regulator_driver = {
+	.driver = {
+		.name = "wm8400-regulator",
+	},
+	.probe = wm8400_regulator_probe,
+};
+
+/**
+ * wm8400_register_regulator - enable software control of a WM8400 regulator
+ *
+ * This function enables software control of a WM8400 regulator via
+ * the regulator API.  It is intended to be called from the
+ * platform_init() callback of the WM8400 MFD driver.
+ *
+ * @dev:      The WM8400 device to operate on.
+ * @reg:      The regulator to control.
+ * @initdata: Regulator initdata for the regulator.
+ */
+int wm8400_register_regulator(struct device *dev, int reg,
+			      struct regulator_init_data *initdata)
+{
+	struct wm8400 *wm8400 = dev_get_drvdata(dev);
+
+	if (wm8400->regulators[reg].name)
+		return -EBUSY;
+
+	initdata->driver_data = wm8400;
+
+	wm8400->regulators[reg].name = "wm8400-regulator";
+	wm8400->regulators[reg].id = reg;
+	wm8400->regulators[reg].dev.parent = dev;
+	wm8400->regulators[reg].dev.platform_data = initdata;
+
+	return platform_device_register(&wm8400->regulators[reg]);
+}
+EXPORT_SYMBOL_GPL(wm8400_register_regulator);
+
+static int __init wm8400_regulator_init(void)
+{
+	return platform_driver_register(&wm8400_regulator_driver);
+}
+subsys_initcall(wm8400_regulator_init);
+
+static void __exit wm8400_regulator_exit(void)
+{
+	platform_driver_unregister(&wm8400_regulator_driver);
+}
+module_exit(wm8400_regulator_exit);
+
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("WM8400 regulator driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm8400-regulator");