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, 263 insertions, 0 deletions

diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
new file mode 100644
index 000000000..a805a6666
--- /dev/null
+++ b/drivers/thermal/da9062-thermal.c
@@ -0,0 +1,263 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Thermal device driver for DA9062 and DA9061
+ * Copyright (C) 2017  Dialog Semiconductor
+ */
+
+/* When over-temperature is reached, an interrupt from the device will be
+ * triggered. Following this event the interrupt will be disabled and
+ * periodic transmission of uevents (HOT trip point) should define the
+ * first level of temperature supervision. It is expected that any final
+ * implementation of the thermal driver will include a .notify() function
+ * to implement these uevents to userspace.
+ *
+ * These uevents are intended to indicate non-invasive temperature control
+ * of the system, where the necessary measures for cooling are the
+ * responsibility of the host software. Once the temperature falls again,
+ * the IRQ is re-enabled so the start of a new over-temperature event can
+ * be detected without constant software monitoring.
+ */
+
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/thermal.h>
+#include <linux/workqueue.h>
+
+#include <linux/mfd/da9062/core.h>
+#include <linux/mfd/da9062/registers.h>
+
+/* Minimum, maximum and default polling millisecond periods are provided
+ * here as an example. It is expected that any final implementation to also
+ * include a modification of these settings to match the required
+ * application.
+ */
+#define DA9062_DEFAULT_POLLING_MS_PERIOD	3000
+#define DA9062_MAX_POLLING_MS_PERIOD		10000
+#define DA9062_MIN_POLLING_MS_PERIOD		1000
+
+#define DA9062_MILLI_CELSIUS(t)			((t) * 1000)
+
+struct da9062_thermal_config {
+	const char *name;
+};
+
+struct da9062_thermal {
+	struct da9062 *hw;
+	struct delayed_work work;
+	struct thermal_zone_device *zone;
+	struct mutex lock; /* protection for da9062_thermal temperature */
+	int temperature;
+	int irq;
+	const struct da9062_thermal_config *config;
+	struct device *dev;
+};
+
+static void da9062_thermal_poll_on(struct work_struct *work)
+{
+	struct da9062_thermal *thermal = container_of(work,
+						struct da9062_thermal,
+						work.work);
+	unsigned long delay;
+	unsigned int val;
+	int ret;
+
+	/* clear E_TEMP */
+	ret = regmap_write(thermal->hw->regmap,
+			   DA9062AA_EVENT_B,
+			   DA9062AA_E_TEMP_MASK);
+	if (ret < 0) {
+		dev_err(thermal->dev,
+			"Cannot clear the TJUNC temperature status\n");
+		goto err_enable_irq;
+	}
+
+	/* Now read E_TEMP again: it is acting like a status bit.
+	 * If over-temperature, then this status will be true.
+	 * If not over-temperature, this status will be false.
+	 */
+	ret = regmap_read(thermal->hw->regmap,
+			  DA9062AA_EVENT_B,
+			  &val);
+	if (ret < 0) {
+		dev_err(thermal->dev,
+			"Cannot check the TJUNC temperature status\n");
+		goto err_enable_irq;
+	}
+
+	if (val & DA9062AA_E_TEMP_MASK) {
+		mutex_lock(&thermal->lock);
+		thermal->temperature = DA9062_MILLI_CELSIUS(125);
+		mutex_unlock(&thermal->lock);
+		thermal_zone_device_update(thermal->zone,
+					   THERMAL_EVENT_UNSPECIFIED);
+
+		delay = thermal->zone->passive_delay_jiffies;
+		queue_delayed_work(system_freezable_wq, &thermal->work, delay);
+		return;
+	}
+
+	mutex_lock(&thermal->lock);
+	thermal->temperature = DA9062_MILLI_CELSIUS(0);
+	mutex_unlock(&thermal->lock);
+	thermal_zone_device_update(thermal->zone,
+				   THERMAL_EVENT_UNSPECIFIED);
+
+err_enable_irq:
+	enable_irq(thermal->irq);
+}
+
+static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
+{
+	struct da9062_thermal *thermal = data;
+
+	disable_irq_nosync(thermal->irq);
+	queue_delayed_work(system_freezable_wq, &thermal->work, 0);
+
+	return IRQ_HANDLED;
+}
+
+static int da9062_thermal_get_temp(struct thermal_zone_device *z,
+				   int *temp)
+{
+	struct da9062_thermal *thermal = z->devdata;
+
+	mutex_lock(&thermal->lock);
+	*temp = thermal->temperature;
+	mutex_unlock(&thermal->lock);
+
+	return 0;
+}
+
+static struct thermal_zone_device_ops da9062_thermal_ops = {
+	.get_temp	= da9062_thermal_get_temp,
+};
+
+static struct thermal_trip trips[] = {
+	{ .temperature = DA9062_MILLI_CELSIUS(125), .type = THERMAL_TRIP_HOT },
+};
+
+static const struct da9062_thermal_config da9062_config = {
+	.name = "da9062-thermal",
+};
+
+static const struct of_device_id da9062_compatible_reg_id_table[] = {
+	{ .compatible = "dlg,da9062-thermal", .data = &da9062_config },
+	{ },
+};
+
+MODULE_DEVICE_TABLE(of, da9062_compatible_reg_id_table);
+
+static int da9062_thermal_probe(struct platform_device *pdev)
+{
+	struct da9062 *chip = dev_get_drvdata(pdev->dev.parent);
+	struct da9062_thermal *thermal;
+	unsigned int pp_tmp = DA9062_DEFAULT_POLLING_MS_PERIOD;
+	const struct of_device_id *match;
+	int ret = 0;
+
+	match = of_match_node(da9062_compatible_reg_id_table,
+			      pdev->dev.of_node);
+	if (!match)
+		return -ENXIO;
+
+	if (pdev->dev.of_node) {
+		if (!of_property_read_u32(pdev->dev.of_node,
+					  "polling-delay-passive",
+					  &pp_tmp)) {
+			if (pp_tmp < DA9062_MIN_POLLING_MS_PERIOD ||
+			    pp_tmp > DA9062_MAX_POLLING_MS_PERIOD) {
+				dev_warn(&pdev->dev,
+					 "Out-of-range polling period %d ms\n",
+					 pp_tmp);
+				pp_tmp = DA9062_DEFAULT_POLLING_MS_PERIOD;
+			}
+		}
+	}
+
+	thermal = devm_kzalloc(&pdev->dev, sizeof(struct da9062_thermal),
+			       GFP_KERNEL);
+	if (!thermal) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	thermal->config = match->data;
+	thermal->hw = chip;
+	thermal->dev = &pdev->dev;
+
+	INIT_DELAYED_WORK(&thermal->work, da9062_thermal_poll_on);
+	mutex_init(&thermal->lock);
+
+	thermal->zone = thermal_zone_device_register_with_trips(thermal->config->name,
+								trips, ARRAY_SIZE(trips), 0, thermal,
+								&da9062_thermal_ops, NULL, pp_tmp,
+								0);
+	if (IS_ERR(thermal->zone)) {
+		dev_err(&pdev->dev, "Cannot register thermal zone device\n");
+		ret = PTR_ERR(thermal->zone);
+		goto err;
+	}
+	ret = thermal_zone_device_enable(thermal->zone);
+	if (ret) {
+		dev_err(&pdev->dev, "Cannot enable thermal zone device\n");
+		goto err_zone;
+	}
+
+	dev_dbg(&pdev->dev,
+		"TJUNC temperature polling period set at %d ms\n",
+		jiffies_to_msecs(thermal->zone->passive_delay_jiffies));
+
+	ret = platform_get_irq_byname(pdev, "THERMAL");
+	if (ret < 0)
+		goto err_zone;
+
+	thermal->irq = ret;
+
+	ret = request_threaded_irq(thermal->irq, NULL,
+				   da9062_thermal_irq_handler,
+				   IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+				   "THERMAL", thermal);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"Failed to request thermal device IRQ.\n");
+		goto err_zone;
+	}
+
+	platform_set_drvdata(pdev, thermal);
+	return 0;
+
+err_zone:
+	thermal_zone_device_unregister(thermal->zone);
+err:
+	return ret;
+}
+
+static int da9062_thermal_remove(struct platform_device *pdev)
+{
+	struct	da9062_thermal *thermal = platform_get_drvdata(pdev);
+
+	free_irq(thermal->irq, thermal);
+	cancel_delayed_work_sync(&thermal->work);
+	thermal_zone_device_unregister(thermal->zone);
+	return 0;
+}
+
+static struct platform_driver da9062_thermal_driver = {
+	.probe	= da9062_thermal_probe,
+	.remove	= da9062_thermal_remove,
+	.driver	= {
+		.name	= "da9062-thermal",
+		.of_match_table = da9062_compatible_reg_id_table,
+	},
+};
+
+module_platform_driver(da9062_thermal_driver);
+
+MODULE_AUTHOR("Steve Twiss");
+MODULE_DESCRIPTION("Thermal TJUNC device driver for Dialog DA9062 and DA9061");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9062-thermal");