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, 319 insertions, 0 deletions

diff --git a/drivers/iio/adc/axp288_adc.c b/drivers/iio/adc/axp288_adc.c
new file mode 100644
index 000000000..49fff1cab
--- /dev/null
+++ b/drivers/iio/adc/axp288_adc.c
@@ -0,0 +1,319 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * axp288_adc.c - X-Powers AXP288 PMIC ADC Driver
+ *
+ * Copyright (C) 2014 Intel Corporation
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#include <linux/dmi.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/regmap.h>
+#include <linux/mfd/axp20x.h>
+#include <linux/platform_device.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/machine.h>
+#include <linux/iio/driver.h>
+
+/*
+ * This mask enables all ADCs except for the battery temp-sensor (TS), that is
+ * left as-is to avoid breaking charging on devices without a temp-sensor.
+ */
+#define AXP288_ADC_EN_MASK				0xF0
+#define AXP288_ADC_TS_ENABLE				0x01
+
+#define AXP288_ADC_TS_BIAS_MASK				GENMASK(5, 4)
+#define AXP288_ADC_TS_BIAS_20UA				(0 << 4)
+#define AXP288_ADC_TS_BIAS_40UA				(1 << 4)
+#define AXP288_ADC_TS_BIAS_60UA				(2 << 4)
+#define AXP288_ADC_TS_BIAS_80UA				(3 << 4)
+#define AXP288_ADC_TS_CURRENT_ON_OFF_MASK		GENMASK(1, 0)
+#define AXP288_ADC_TS_CURRENT_OFF			(0 << 0)
+#define AXP288_ADC_TS_CURRENT_ON_WHEN_CHARGING		(1 << 0)
+#define AXP288_ADC_TS_CURRENT_ON_ONDEMAND		(2 << 0)
+#define AXP288_ADC_TS_CURRENT_ON			(3 << 0)
+
+enum axp288_adc_id {
+	AXP288_ADC_TS,
+	AXP288_ADC_PMIC,
+	AXP288_ADC_GP,
+	AXP288_ADC_BATT_CHRG_I,
+	AXP288_ADC_BATT_DISCHRG_I,
+	AXP288_ADC_BATT_V,
+	AXP288_ADC_NR_CHAN,
+};
+
+struct axp288_adc_info {
+	int irq;
+	struct regmap *regmap;
+	/* lock to protect against multiple access to the device */
+	struct mutex lock;
+	bool ts_enabled;
+};
+
+static const struct iio_chan_spec axp288_adc_channels[] = {
+	{
+		.indexed = 1,
+		.type = IIO_TEMP,
+		.channel = 0,
+		.address = AXP288_TS_ADC_H,
+		.datasheet_name = "TS_PIN",
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+	}, {
+		.indexed = 1,
+		.type = IIO_TEMP,
+		.channel = 1,
+		.address = AXP288_PMIC_ADC_H,
+		.datasheet_name = "PMIC_TEMP",
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+	}, {
+		.indexed = 1,
+		.type = IIO_TEMP,
+		.channel = 2,
+		.address = AXP288_GP_ADC_H,
+		.datasheet_name = "GPADC",
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+	}, {
+		.indexed = 1,
+		.type = IIO_CURRENT,
+		.channel = 3,
+		.address = AXP20X_BATT_CHRG_I_H,
+		.datasheet_name = "BATT_CHG_I",
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+	}, {
+		.indexed = 1,
+		.type = IIO_CURRENT,
+		.channel = 4,
+		.address = AXP20X_BATT_DISCHRG_I_H,
+		.datasheet_name = "BATT_DISCHRG_I",
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+	}, {
+		.indexed = 1,
+		.type = IIO_VOLTAGE,
+		.channel = 5,
+		.address = AXP20X_BATT_V_H,
+		.datasheet_name = "BATT_V",
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+	},
+};
+
+/* for consumer drivers */
+static struct iio_map axp288_adc_default_maps[] = {
+	IIO_MAP("TS_PIN", "axp288-batt", "axp288-batt-temp"),
+	IIO_MAP("PMIC_TEMP", "axp288-pmic", "axp288-pmic-temp"),
+	IIO_MAP("GPADC", "axp288-gpadc", "axp288-system-temp"),
+	IIO_MAP("BATT_CHG_I", "axp288-chrg", "axp288-chrg-curr"),
+	IIO_MAP("BATT_DISCHRG_I", "axp288-chrg", "axp288-chrg-d-curr"),
+	IIO_MAP("BATT_V", "axp288-batt", "axp288-batt-volt"),
+	{},
+};
+
+static int axp288_adc_read_channel(int *val, unsigned long address,
+				struct regmap *regmap)
+{
+	u8 buf[2];
+
+	if (regmap_bulk_read(regmap, address, buf, 2))
+		return -EIO;
+	*val = (buf[0] << 4) + ((buf[1] >> 4) & 0x0F);
+
+	return IIO_VAL_INT;
+}
+
+/*
+ * The current-source used for the battery temp-sensor (TS) is shared
+ * with the GPADC. For proper fuel-gauge and charger operation the TS
+ * current-source needs to be permanently on. But to read the GPADC we
+ * need to temporary switch the TS current-source to ondemand, so that
+ * the GPADC can use it, otherwise we will always read an all 0 value.
+ */
+static int axp288_adc_set_ts(struct axp288_adc_info *info,
+			     unsigned int mode, unsigned long address)
+{
+	int ret;
+
+	/* No need to switch the current-source if the TS pin is disabled */
+	if (!info->ts_enabled)
+		return 0;
+
+	/* Channels other than GPADC do not need the current source */
+	if (address != AXP288_GP_ADC_H)
+		return 0;
+
+	ret = regmap_update_bits(info->regmap, AXP288_ADC_TS_PIN_CTRL,
+				 AXP288_ADC_TS_CURRENT_ON_OFF_MASK, mode);
+	if (ret)
+		return ret;
+
+	/* When switching to the GPADC pin give things some time to settle */
+	if (mode == AXP288_ADC_TS_CURRENT_ON_ONDEMAND)
+		usleep_range(6000, 10000);
+
+	return 0;
+}
+
+static int axp288_adc_read_raw(struct iio_dev *indio_dev,
+			struct iio_chan_spec const *chan,
+			int *val, int *val2, long mask)
+{
+	int ret;
+	struct axp288_adc_info *info = iio_priv(indio_dev);
+
+	mutex_lock(&info->lock);
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		if (axp288_adc_set_ts(info, AXP288_ADC_TS_CURRENT_ON_ONDEMAND,
+					chan->address)) {
+			dev_err(&indio_dev->dev, "GPADC mode\n");
+			ret = -EINVAL;
+			break;
+		}
+		ret = axp288_adc_read_channel(val, chan->address, info->regmap);
+		if (axp288_adc_set_ts(info, AXP288_ADC_TS_CURRENT_ON,
+						chan->address))
+			dev_err(&indio_dev->dev, "TS pin restore\n");
+		break;
+	default:
+		ret = -EINVAL;
+	}
+	mutex_unlock(&info->lock);
+
+	return ret;
+}
+
+/*
+ * We rely on the machine's firmware to correctly setup the TS pin bias current
+ * at boot. This lists systems with broken fw where we need to set it ourselves.
+ */
+static const struct dmi_system_id axp288_adc_ts_bias_override[] = {
+	{
+		/* Lenovo Ideapad 100S (11 inch) */
+		.matches = {
+		  DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+		  DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad 100S-11IBY"),
+		},
+		.driver_data = (void *)(uintptr_t)AXP288_ADC_TS_BIAS_80UA,
+	},
+	{
+		/* Nuvision Solo 10 Draw */
+		.matches = {
+		  DMI_MATCH(DMI_SYS_VENDOR, "TMAX"),
+		  DMI_MATCH(DMI_PRODUCT_NAME, "TM101W610L"),
+		},
+		.driver_data = (void *)(uintptr_t)AXP288_ADC_TS_BIAS_80UA,
+	},
+	{}
+};
+
+static int axp288_adc_initialize(struct axp288_adc_info *info)
+{
+	const struct dmi_system_id *bias_override;
+	int ret, adc_enable_val;
+
+	bias_override = dmi_first_match(axp288_adc_ts_bias_override);
+	if (bias_override) {
+		ret = regmap_update_bits(info->regmap, AXP288_ADC_TS_PIN_CTRL,
+					 AXP288_ADC_TS_BIAS_MASK,
+					 (uintptr_t)bias_override->driver_data);
+		if (ret)
+			return ret;
+	}
+
+	/*
+	 * Determine if the TS pin is enabled and set the TS current-source
+	 * accordingly.
+	 */
+	ret = regmap_read(info->regmap, AXP20X_ADC_EN1, &adc_enable_val);
+	if (ret)
+		return ret;
+
+	if (adc_enable_val & AXP288_ADC_TS_ENABLE) {
+		info->ts_enabled = true;
+		ret = regmap_update_bits(info->regmap, AXP288_ADC_TS_PIN_CTRL,
+					 AXP288_ADC_TS_CURRENT_ON_OFF_MASK,
+					 AXP288_ADC_TS_CURRENT_ON);
+	} else {
+		info->ts_enabled = false;
+		ret = regmap_update_bits(info->regmap, AXP288_ADC_TS_PIN_CTRL,
+					 AXP288_ADC_TS_CURRENT_ON_OFF_MASK,
+					 AXP288_ADC_TS_CURRENT_OFF);
+	}
+	if (ret)
+		return ret;
+
+	/* Turn on the ADC for all channels except TS, leave TS as is */
+	return regmap_update_bits(info->regmap, AXP20X_ADC_EN1,
+				  AXP288_ADC_EN_MASK, AXP288_ADC_EN_MASK);
+}
+
+static const struct iio_info axp288_adc_iio_info = {
+	.read_raw = &axp288_adc_read_raw,
+};
+
+static int axp288_adc_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct axp288_adc_info *info;
+	struct iio_dev *indio_dev;
+	struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
+
+	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*info));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	info = iio_priv(indio_dev);
+	info->irq = platform_get_irq(pdev, 0);
+	if (info->irq < 0)
+		return info->irq;
+
+	info->regmap = axp20x->regmap;
+	/*
+	 * Set ADC to enabled state at all time, including system suspend.
+	 * otherwise internal fuel gauge functionality may be affected.
+	 */
+	ret = axp288_adc_initialize(info);
+	if (ret) {
+		dev_err(&pdev->dev, "unable to enable ADC device\n");
+		return ret;
+	}
+
+	indio_dev->name = pdev->name;
+	indio_dev->channels = axp288_adc_channels;
+	indio_dev->num_channels = ARRAY_SIZE(axp288_adc_channels);
+	indio_dev->info = &axp288_adc_iio_info;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = devm_iio_map_array_register(&pdev->dev, indio_dev, axp288_adc_default_maps);
+	if (ret < 0)
+		return ret;
+
+	mutex_init(&info->lock);
+
+	return devm_iio_device_register(&pdev->dev, indio_dev);
+}
+
+static const struct platform_device_id axp288_adc_id_table[] = {
+	{ .name = "axp288_adc" },
+	{},
+};
+
+static struct platform_driver axp288_adc_driver = {
+	.probe = axp288_adc_probe,
+	.id_table = axp288_adc_id_table,
+	.driver = {
+		.name = "axp288_adc",
+	},
+};
+
+MODULE_DEVICE_TABLE(platform, axp288_adc_id_table);
+
+module_platform_driver(axp288_adc_driver);
+
+MODULE_AUTHOR("Jacob Pan <jacob.jun.pan@linux.intel.com>");
+MODULE_DESCRIPTION("X-Powers AXP288 ADC Driver");
+MODULE_LICENSE("GPL");