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, 252 insertions, 0 deletions

diff --git a/drivers/iio/accel/cros_ec_accel_legacy.c b/drivers/iio/accel/cros_ec_accel_legacy.c
new file mode 100644
index 000000000..0f403342b
--- /dev/null
+++ b/drivers/iio/accel/cros_ec_accel_legacy.c
@@ -0,0 +1,252 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for older Chrome OS EC accelerometer
+ *
+ * Copyright 2017 Google, Inc
+ *
+ * This driver uses the memory mapper cros-ec interface to communicate
+ * with the Chrome OS EC about accelerometer data or older commands.
+ * Accelerometer access is presented through iio sysfs.
+ */
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/common/cros_ec_sensors_core.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/kfifo_buf.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
+#include <linux/platform_device.h>
+
+#define DRV_NAME	"cros-ec-accel-legacy"
+
+#define CROS_EC_SENSOR_LEGACY_NUM 2
+/*
+ * Sensor scale hard coded at 10 bits per g, computed as:
+ * g / (2^10 - 1) = 0.009586168; with g = 9.80665 m.s^-2
+ */
+#define ACCEL_LEGACY_NSCALE 9586168
+
+/*
+ * Sensor frequency is hard-coded to 10Hz.
+ */
+static const int cros_ec_legacy_sample_freq[] = { 10, 0 };
+
+static int cros_ec_accel_legacy_read_cmd(struct iio_dev *indio_dev,
+				  unsigned long scan_mask, s16 *data)
+{
+	struct cros_ec_sensors_core_state *st = iio_priv(indio_dev);
+	int ret;
+	unsigned int i;
+	u8 sensor_num;
+
+	/*
+	 * Read all sensor data through a command.
+	 * Save sensor_num, it is assumed to stay.
+	 */
+	sensor_num = st->param.info.sensor_num;
+	st->param.cmd = MOTIONSENSE_CMD_DUMP;
+	st->param.dump.max_sensor_count = CROS_EC_SENSOR_LEGACY_NUM;
+	ret = cros_ec_motion_send_host_cmd(st,
+			sizeof(st->resp->dump) + CROS_EC_SENSOR_LEGACY_NUM *
+			sizeof(struct ec_response_motion_sensor_data));
+	st->param.info.sensor_num = sensor_num;
+	if (ret != 0) {
+		dev_warn(&indio_dev->dev, "Unable to read sensor data\n");
+		return ret;
+	}
+
+	for_each_set_bit(i, &scan_mask, indio_dev->masklength) {
+		*data = st->resp->dump.sensor[sensor_num].data[i] *
+			st->sign[i];
+		data++;
+	}
+
+	return 0;
+}
+
+static int cros_ec_accel_legacy_read(struct iio_dev *indio_dev,
+				     struct iio_chan_spec const *chan,
+				     int *val, int *val2, long mask)
+{
+	struct cros_ec_sensors_core_state *st = iio_priv(indio_dev);
+	s16 data = 0;
+	int ret;
+	int idx = chan->scan_index;
+
+	mutex_lock(&st->cmd_lock);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		ret = st->read_ec_sensors_data(indio_dev, 1 << idx, &data);
+		if (ret < 0)
+			break;
+		ret = IIO_VAL_INT;
+		*val = data;
+		break;
+	case IIO_CHAN_INFO_SCALE:
+		WARN_ON(st->type != MOTIONSENSE_TYPE_ACCEL);
+		*val = 0;
+		*val2 = ACCEL_LEGACY_NSCALE;
+		ret = IIO_VAL_INT_PLUS_NANO;
+		break;
+	case IIO_CHAN_INFO_CALIBBIAS:
+		/* Calibration not supported. */
+		*val = 0;
+		ret = IIO_VAL_INT;
+		break;
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		*val = cros_ec_legacy_sample_freq[0];
+		*val2 = cros_ec_legacy_sample_freq[1];
+		ret = IIO_VAL_INT_PLUS_MICRO;
+		break;
+	default:
+		ret = cros_ec_sensors_core_read(st, chan, val, val2,
+				mask);
+		break;
+	}
+	mutex_unlock(&st->cmd_lock);
+
+	return ret;
+}
+
+static int cros_ec_accel_legacy_write(struct iio_dev *indio_dev,
+				      struct iio_chan_spec const *chan,
+				      int val, int val2, long mask)
+{
+	/*
+	 * Do nothing but don't return an error code to allow calibration
+	 * script to work.
+	 */
+	if (mask == IIO_CHAN_INFO_CALIBBIAS)
+		return 0;
+
+	return -EINVAL;
+}
+
+/**
+ * cros_ec_accel_legacy_read_avail() - get available values
+ * @indio_dev:		pointer to state information for device
+ * @chan:	channel specification structure table
+ * @vals:	list of available values
+ * @type:	type of data returned
+ * @length:	number of data returned in the array
+ * @mask:	specifies which values to be requested
+ *
+ * Return:	an error code or IIO_AVAIL_LIST
+ */
+static int cros_ec_accel_legacy_read_avail(struct iio_dev *indio_dev,
+					   struct iio_chan_spec const *chan,
+					   const int **vals,
+					   int *type,
+					   int *length,
+					   long mask)
+{
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		*length = ARRAY_SIZE(cros_ec_legacy_sample_freq);
+		*vals = cros_ec_legacy_sample_freq;
+		*type = IIO_VAL_INT_PLUS_MICRO;
+		return IIO_AVAIL_LIST;
+	}
+
+	return -EINVAL;
+}
+
+static const struct iio_info cros_ec_accel_legacy_info = {
+	.read_raw = &cros_ec_accel_legacy_read,
+	.write_raw = &cros_ec_accel_legacy_write,
+	.read_avail = &cros_ec_accel_legacy_read_avail,
+};
+
+/*
+ * Present the channel using HTML5 standard:
+ * need to invert X and Y and invert some lid axis.
+ */
+#define CROS_EC_ACCEL_ROTATE_AXIS(_axis)				\
+	((_axis) == CROS_EC_SENSOR_Z ? CROS_EC_SENSOR_Z :		\
+	 ((_axis) == CROS_EC_SENSOR_X ? CROS_EC_SENSOR_Y :		\
+	  CROS_EC_SENSOR_X))
+
+#define CROS_EC_ACCEL_LEGACY_CHAN(_axis)				\
+	{								\
+		.type = IIO_ACCEL,					\
+		.channel2 = IIO_MOD_X + (_axis),			\
+		.modified = 1,					        \
+		.info_mask_separate =					\
+			BIT(IIO_CHAN_INFO_RAW) |			\
+			BIT(IIO_CHAN_INFO_CALIBBIAS),			\
+		.info_mask_shared_by_all =				\
+			BIT(IIO_CHAN_INFO_SCALE) |			\
+			BIT(IIO_CHAN_INFO_SAMP_FREQ),			\
+		.info_mask_shared_by_all_available =			\
+			BIT(IIO_CHAN_INFO_SAMP_FREQ),			\
+		.ext_info = cros_ec_sensors_ext_info,			\
+		.scan_type = {						\
+			.sign = 's',					\
+			.realbits = CROS_EC_SENSOR_BITS,		\
+			.storagebits = CROS_EC_SENSOR_BITS,		\
+		},							\
+		.scan_index = CROS_EC_ACCEL_ROTATE_AXIS(_axis),		\
+	}								\
+
+static const struct iio_chan_spec cros_ec_accel_legacy_channels[] = {
+		CROS_EC_ACCEL_LEGACY_CHAN(CROS_EC_SENSOR_X),
+		CROS_EC_ACCEL_LEGACY_CHAN(CROS_EC_SENSOR_Y),
+		CROS_EC_ACCEL_LEGACY_CHAN(CROS_EC_SENSOR_Z),
+		IIO_CHAN_SOFT_TIMESTAMP(CROS_EC_SENSOR_MAX_AXIS)
+};
+
+static int cros_ec_accel_legacy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct iio_dev *indio_dev;
+	struct cros_ec_sensors_core_state *state;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*state));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	ret = cros_ec_sensors_core_init(pdev, indio_dev, true,
+					cros_ec_sensors_capture);
+	if (ret)
+		return ret;
+
+	indio_dev->info = &cros_ec_accel_legacy_info;
+	state = iio_priv(indio_dev);
+
+	if (state->ec->cmd_readmem != NULL)
+		state->read_ec_sensors_data = cros_ec_sensors_read_lpc;
+	else
+		state->read_ec_sensors_data = cros_ec_accel_legacy_read_cmd;
+
+	indio_dev->channels = cros_ec_accel_legacy_channels;
+	indio_dev->num_channels = ARRAY_SIZE(cros_ec_accel_legacy_channels);
+	/* The lid sensor needs to be presented inverted. */
+	if (!strcmp(indio_dev->label, "accel-display")) {
+		state->sign[CROS_EC_SENSOR_X] = -1;
+		state->sign[CROS_EC_SENSOR_Z] = -1;
+	}
+
+	return cros_ec_sensors_core_register(dev, indio_dev, NULL);
+}
+
+static struct platform_driver cros_ec_accel_platform_driver = {
+	.driver = {
+		.name	= DRV_NAME,
+	},
+	.probe		= cros_ec_accel_legacy_probe,
+};
+module_platform_driver(cros_ec_accel_platform_driver);
+
+MODULE_DESCRIPTION("ChromeOS EC legacy accelerometer driver");
+MODULE_AUTHOR("Gwendal Grignou <gwendal@chromium.org>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRV_NAME);