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, 327 insertions, 0 deletions

diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
new file mode 100644
index 000000000..ad8910e6a
--- /dev/null
+++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
@@ -0,0 +1,327 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * HID Sensors Driver
+ * Copyright (c) 2012, Intel Corporation.
+ */
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/hid-sensor-hub.h>
+#include <linux/workqueue.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/sysfs.h>
+#include "hid-sensor-trigger.h"
+
+static ssize_t _hid_sensor_set_report_latency(struct device *dev,
+					      struct device_attribute *attr,
+					      const char *buf, size_t len)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev);
+	int integer, fract, ret;
+	int latency;
+
+	ret = iio_str_to_fixpoint(buf, 100000, &integer, &fract);
+	if (ret)
+		return ret;
+
+	latency = integer * 1000 + fract / 1000;
+	ret = hid_sensor_set_report_latency(attrb, latency);
+	if (ret < 0)
+		return len;
+
+	attrb->latency_ms = hid_sensor_get_report_latency(attrb);
+
+	return len;
+}
+
+static ssize_t _hid_sensor_get_report_latency(struct device *dev,
+					      struct device_attribute *attr,
+					      char *buf)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev);
+	int latency;
+
+	latency = hid_sensor_get_report_latency(attrb);
+	if (latency < 0)
+		return latency;
+
+	return sprintf(buf, "%d.%06u\n", latency / 1000, (latency % 1000) * 1000);
+}
+
+static ssize_t _hid_sensor_get_fifo_state(struct device *dev,
+					  struct device_attribute *attr,
+					  char *buf)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev);
+	int latency;
+
+	latency = hid_sensor_get_report_latency(attrb);
+	if (latency < 0)
+		return latency;
+
+	return sprintf(buf, "%d\n", !!latency);
+}
+
+static IIO_DEVICE_ATTR(hwfifo_timeout, 0644,
+		       _hid_sensor_get_report_latency,
+		       _hid_sensor_set_report_latency, 0);
+static IIO_DEVICE_ATTR(hwfifo_enabled, 0444,
+		       _hid_sensor_get_fifo_state, NULL, 0);
+
+static const struct iio_dev_attr *hid_sensor_fifo_attributes[] = {
+	&iio_dev_attr_hwfifo_timeout,
+	&iio_dev_attr_hwfifo_enabled,
+	NULL,
+};
+
+static int _hid_sensor_power_state(struct hid_sensor_common *st, bool state)
+{
+	int state_val;
+	int report_val;
+	s32 poll_value = 0;
+
+	if (state) {
+		if (sensor_hub_device_open(st->hsdev))
+			return -EIO;
+
+		atomic_inc(&st->data_ready);
+
+		state_val = hid_sensor_get_usage_index(st->hsdev,
+			st->power_state.report_id,
+			st->power_state.index,
+			HID_USAGE_SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM);
+		report_val = hid_sensor_get_usage_index(st->hsdev,
+			st->report_state.report_id,
+			st->report_state.index,
+			HID_USAGE_SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM);
+
+		poll_value = hid_sensor_read_poll_value(st);
+	} else {
+		int val;
+
+		val = atomic_dec_if_positive(&st->data_ready);
+		if (val < 0)
+			return 0;
+
+		sensor_hub_device_close(st->hsdev);
+		state_val = hid_sensor_get_usage_index(st->hsdev,
+			st->power_state.report_id,
+			st->power_state.index,
+			HID_USAGE_SENSOR_PROP_POWER_STATE_D4_POWER_OFF_ENUM);
+		report_val = hid_sensor_get_usage_index(st->hsdev,
+			st->report_state.report_id,
+			st->report_state.index,
+			HID_USAGE_SENSOR_PROP_REPORTING_STATE_NO_EVENTS_ENUM);
+	}
+
+	if (state_val >= 0) {
+		state_val += st->power_state.logical_minimum;
+		sensor_hub_set_feature(st->hsdev, st->power_state.report_id,
+				       st->power_state.index, sizeof(state_val),
+				       &state_val);
+	}
+
+	if (report_val >= 0) {
+		report_val += st->report_state.logical_minimum;
+		sensor_hub_set_feature(st->hsdev, st->report_state.report_id,
+				       st->report_state.index,
+				       sizeof(report_val),
+				       &report_val);
+	}
+
+	pr_debug("HID_SENSOR %s set power_state %d report_state %d\n",
+		 st->pdev->name, state_val, report_val);
+
+	sensor_hub_get_feature(st->hsdev, st->power_state.report_id,
+			       st->power_state.index,
+			       sizeof(state_val), &state_val);
+	if (state && poll_value)
+		msleep_interruptible(poll_value * 2);
+
+	return 0;
+}
+EXPORT_SYMBOL_NS(hid_sensor_power_state, IIO_HID);
+
+int hid_sensor_power_state(struct hid_sensor_common *st, bool state)
+{
+
+#ifdef CONFIG_PM
+	int ret;
+
+	if (atomic_add_unless(&st->runtime_pm_enable, 1, 1))
+		pm_runtime_enable(&st->pdev->dev);
+
+	if (state) {
+		atomic_inc(&st->user_requested_state);
+		ret = pm_runtime_resume_and_get(&st->pdev->dev);
+	} else {
+		atomic_dec(&st->user_requested_state);
+		pm_runtime_mark_last_busy(&st->pdev->dev);
+		pm_runtime_use_autosuspend(&st->pdev->dev);
+		ret = pm_runtime_put_autosuspend(&st->pdev->dev);
+	}
+	if (ret < 0)
+		return ret;
+
+	return 0;
+#else
+	atomic_set(&st->user_requested_state, state);
+	return _hid_sensor_power_state(st, state);
+#endif
+}
+
+static void hid_sensor_set_power_work(struct work_struct *work)
+{
+	struct hid_sensor_common *attrb = container_of(work,
+						       struct hid_sensor_common,
+						       work);
+
+	if (attrb->poll_interval >= 0)
+		sensor_hub_set_feature(attrb->hsdev, attrb->poll.report_id,
+				       attrb->poll.index,
+				       sizeof(attrb->poll_interval),
+				       &attrb->poll_interval);
+
+	if (attrb->raw_hystersis >= 0)
+		sensor_hub_set_feature(attrb->hsdev,
+				       attrb->sensitivity.report_id,
+				       attrb->sensitivity.index,
+				       sizeof(attrb->raw_hystersis),
+				       &attrb->raw_hystersis);
+
+	if (attrb->latency_ms > 0)
+		hid_sensor_set_report_latency(attrb, attrb->latency_ms);
+
+	if (atomic_read(&attrb->user_requested_state))
+		_hid_sensor_power_state(attrb, true);
+}
+
+static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig,
+						bool state)
+{
+	return hid_sensor_power_state(iio_trigger_get_drvdata(trig), state);
+}
+
+void hid_sensor_remove_trigger(struct iio_dev *indio_dev,
+			       struct hid_sensor_common *attrb)
+{
+	if (atomic_read(&attrb->runtime_pm_enable))
+		pm_runtime_disable(&attrb->pdev->dev);
+
+	pm_runtime_set_suspended(&attrb->pdev->dev);
+
+	cancel_work_sync(&attrb->work);
+	iio_trigger_unregister(attrb->trigger);
+	iio_trigger_free(attrb->trigger);
+	iio_triggered_buffer_cleanup(indio_dev);
+}
+EXPORT_SYMBOL_NS(hid_sensor_remove_trigger, IIO_HID);
+
+static const struct iio_trigger_ops hid_sensor_trigger_ops = {
+	.set_trigger_state = &hid_sensor_data_rdy_trigger_set_state,
+};
+
+int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name,
+				struct hid_sensor_common *attrb)
+{
+	const struct iio_dev_attr **fifo_attrs;
+	int ret;
+	struct iio_trigger *trig;
+
+	if (hid_sensor_batch_mode_supported(attrb))
+		fifo_attrs = hid_sensor_fifo_attributes;
+	else
+		fifo_attrs = NULL;
+
+	ret = iio_triggered_buffer_setup_ext(indio_dev,
+					     &iio_pollfunc_store_time, NULL,
+					     IIO_BUFFER_DIRECTION_IN,
+					     NULL, fifo_attrs);
+	if (ret) {
+		dev_err(&indio_dev->dev, "Triggered Buffer Setup Failed\n");
+		return ret;
+	}
+
+	trig = iio_trigger_alloc(indio_dev->dev.parent,
+				 "%s-dev%d", name, iio_device_id(indio_dev));
+	if (trig == NULL) {
+		dev_err(&indio_dev->dev, "Trigger Allocate Failed\n");
+		ret = -ENOMEM;
+		goto error_triggered_buffer_cleanup;
+	}
+
+	iio_trigger_set_drvdata(trig, attrb);
+	trig->ops = &hid_sensor_trigger_ops;
+	ret = iio_trigger_register(trig);
+
+	if (ret) {
+		dev_err(&indio_dev->dev, "Trigger Register Failed\n");
+		goto error_free_trig;
+	}
+	attrb->trigger = trig;
+	indio_dev->trig = iio_trigger_get(trig);
+
+	ret = pm_runtime_set_active(&indio_dev->dev);
+	if (ret)
+		goto error_unreg_trigger;
+
+	iio_device_set_drvdata(indio_dev, attrb);
+
+	INIT_WORK(&attrb->work, hid_sensor_set_power_work);
+
+	pm_suspend_ignore_children(&attrb->pdev->dev, true);
+	/* Default to 3 seconds, but can be changed from sysfs */
+	pm_runtime_set_autosuspend_delay(&attrb->pdev->dev,
+					 3000);
+	return ret;
+error_unreg_trigger:
+	iio_trigger_unregister(trig);
+error_free_trig:
+	iio_trigger_free(trig);
+error_triggered_buffer_cleanup:
+	iio_triggered_buffer_cleanup(indio_dev);
+	return ret;
+}
+EXPORT_SYMBOL_NS(hid_sensor_setup_trigger, IIO_HID);
+
+static int __maybe_unused hid_sensor_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev);
+
+	return _hid_sensor_power_state(attrb, false);
+}
+
+static int __maybe_unused hid_sensor_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev);
+	schedule_work(&attrb->work);
+	return 0;
+}
+
+static int __maybe_unused hid_sensor_runtime_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev);
+	return _hid_sensor_power_state(attrb, true);
+}
+
+const struct dev_pm_ops hid_sensor_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(hid_sensor_suspend, hid_sensor_resume)
+	SET_RUNTIME_PM_OPS(hid_sensor_suspend,
+			   hid_sensor_runtime_resume, NULL)
+};
+EXPORT_SYMBOL_NS(hid_sensor_pm_ops, IIO_HID);
+
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>");
+MODULE_DESCRIPTION("HID Sensor trigger processing");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(IIO_HID_ATTRIBUTES);