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, 283 insertions, 0 deletions

diff --git a/drivers/hwmon/w83l785ts.c b/drivers/hwmon/w83l785ts.c
new file mode 100644
index 000000000..f3622de0d
--- /dev/null
+++ b/drivers/hwmon/w83l785ts.c
@@ -0,0 +1,283 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * w83l785ts.c - Part of lm_sensors, Linux kernel modules for hardware
+ *               monitoring
+ * Copyright (C) 2003-2009  Jean Delvare <jdelvare@suse.de>
+ *
+ * Inspired from the lm83 driver. The W83L785TS-S is a sensor chip made
+ * by Winbond. It reports a single external temperature with a 1 deg
+ * resolution and a 3 deg accuracy. Datasheet can be obtained from
+ * Winbond's website at:
+ *   http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/W83L785TS-S.pdf
+ *
+ * Ported to Linux 2.6 by Wolfgang Ziegler <nuppla@gmx.at> and Jean Delvare
+ * <jdelvare@suse.de>.
+ *
+ * Thanks to James Bolt <james@evilpenguin.com> for benchmarking the read
+ * error handling mechanism.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+
+/* How many retries on register read error */
+#define MAX_RETRIES	5
+
+/*
+ * Address to scan
+ * Address is fully defined internally and cannot be changed.
+ */
+
+static const unsigned short normal_i2c[] = { 0x2e, I2C_CLIENT_END };
+
+/*
+ * The W83L785TS-S registers
+ * Manufacturer ID is 0x5CA3 for Winbond.
+ */
+
+#define W83L785TS_REG_MAN_ID1		0x4D
+#define W83L785TS_REG_MAN_ID2		0x4C
+#define W83L785TS_REG_CHIP_ID		0x4E
+#define W83L785TS_REG_CONFIG		0x40
+#define W83L785TS_REG_TYPE		0x52
+#define W83L785TS_REG_TEMP		0x27
+#define W83L785TS_REG_TEMP_OVER		0x53 /* not sure about this one */
+
+/*
+ * Conversions
+ * The W83L785TS-S uses signed 8-bit values.
+ */
+
+#define TEMP_FROM_REG(val)	((val) * 1000)
+
+/*
+ * Functions declaration
+ */
+
+static int w83l785ts_probe(struct i2c_client *client);
+static int w83l785ts_detect(struct i2c_client *client,
+			    struct i2c_board_info *info);
+static void w83l785ts_remove(struct i2c_client *client);
+static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval);
+static struct w83l785ts_data *w83l785ts_update_device(struct device *dev);
+
+/*
+ * Driver data (common to all clients)
+ */
+
+static const struct i2c_device_id w83l785ts_id[] = {
+	{ "w83l785ts", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, w83l785ts_id);
+
+static struct i2c_driver w83l785ts_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name	= "w83l785ts",
+	},
+	.probe_new	= w83l785ts_probe,
+	.remove		= w83l785ts_remove,
+	.id_table	= w83l785ts_id,
+	.detect		= w83l785ts_detect,
+	.address_list	= normal_i2c,
+};
+
+/*
+ * Client data (each client gets its own)
+ */
+
+struct w83l785ts_data {
+	struct device *hwmon_dev;
+	struct mutex update_lock;
+	bool valid; /* false until following fields are valid */
+	unsigned long last_updated; /* in jiffies */
+
+	/* registers values */
+	s8 temp[2]; /* 0: input, 1: critical limit */
+};
+
+/*
+ * Sysfs stuff
+ */
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
+	char *buf)
+{
+	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct w83l785ts_data *data = w83l785ts_update_device(dev);
+	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, NULL, 1);
+
+/*
+ * Real code
+ */
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int w83l785ts_detect(struct i2c_client *client,
+			    struct i2c_board_info *info)
+{
+	struct i2c_adapter *adapter = client->adapter;
+	u16 man_id;
+	u8 chip_id;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+
+	/* detection */
+	if ((w83l785ts_read_value(client, W83L785TS_REG_CONFIG, 0) & 0x80)
+	 || (w83l785ts_read_value(client, W83L785TS_REG_TYPE, 0) & 0xFC)) {
+		dev_dbg(&adapter->dev,
+			"W83L785TS-S detection failed at 0x%02x\n",
+			client->addr);
+		return -ENODEV;
+	}
+
+	/* Identification */
+	man_id = (w83l785ts_read_value(client, W83L785TS_REG_MAN_ID1, 0) << 8)
+	       + w83l785ts_read_value(client, W83L785TS_REG_MAN_ID2, 0);
+	chip_id = w83l785ts_read_value(client, W83L785TS_REG_CHIP_ID, 0);
+
+	if (man_id != 0x5CA3		/* Winbond */
+	 || chip_id != 0x70) {		/* W83L785TS-S */
+		dev_dbg(&adapter->dev,
+			"Unsupported chip (man_id=0x%04X, chip_id=0x%02X)\n",
+			man_id, chip_id);
+		return -ENODEV;
+	}
+
+	strscpy(info->type, "w83l785ts", I2C_NAME_SIZE);
+
+	return 0;
+}
+
+static int w83l785ts_probe(struct i2c_client *client)
+{
+	struct w83l785ts_data *data;
+	struct device *dev = &client->dev;
+	int err;
+
+	data = devm_kzalloc(dev, sizeof(struct w83l785ts_data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, data);
+	mutex_init(&data->update_lock);
+
+	/*
+	 * Initialize the W83L785TS chip
+	 * Nothing yet, assume it is already started.
+	 */
+
+	err = device_create_file(dev, &sensor_dev_attr_temp1_input.dev_attr);
+	if (err)
+		return err;
+
+	err = device_create_file(dev, &sensor_dev_attr_temp1_max.dev_attr);
+	if (err)
+		goto exit_remove;
+
+	/* Register sysfs hooks */
+	data->hwmon_dev = hwmon_device_register(dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		err = PTR_ERR(data->hwmon_dev);
+		goto exit_remove;
+	}
+
+	return 0;
+
+exit_remove:
+	device_remove_file(dev, &sensor_dev_attr_temp1_input.dev_attr);
+	device_remove_file(dev, &sensor_dev_attr_temp1_max.dev_attr);
+	return err;
+}
+
+static void w83l785ts_remove(struct i2c_client *client)
+{
+	struct w83l785ts_data *data = i2c_get_clientdata(client);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	device_remove_file(&client->dev,
+			   &sensor_dev_attr_temp1_input.dev_attr);
+	device_remove_file(&client->dev,
+			   &sensor_dev_attr_temp1_max.dev_attr);
+}
+
+static u8 w83l785ts_read_value(struct i2c_client *client, u8 reg, u8 defval)
+{
+	int value, i;
+	struct device *dev;
+	const char *prefix;
+
+	/*
+	 * We might be called during detection, at which point the client
+	 * isn't yet fully initialized, so we can't use dev_dbg on it
+	 */
+	if (i2c_get_clientdata(client)) {
+		dev = &client->dev;
+		prefix = "";
+	} else {
+		dev = &client->adapter->dev;
+		prefix = "w83l785ts: ";
+	}
+
+	/*
+	 * Frequent read errors have been reported on Asus boards, so we
+	 * retry on read errors. If it still fails (unlikely), return the
+	 * default value requested by the caller.
+	 */
+	for (i = 1; i <= MAX_RETRIES; i++) {
+		value = i2c_smbus_read_byte_data(client, reg);
+		if (value >= 0) {
+			dev_dbg(dev, "%sRead 0x%02x from register 0x%02x.\n",
+				prefix, value, reg);
+			return value;
+		}
+		dev_dbg(dev, "%sRead failed, will retry in %d.\n", prefix, i);
+		msleep(i);
+	}
+
+	dev_err(dev, "%sCouldn't read value from register 0x%02x.\n", prefix,
+		reg);
+	return defval;
+}
+
+static struct w83l785ts_data *w83l785ts_update_device(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct w83l785ts_data *data = i2c_get_clientdata(client);
+
+	mutex_lock(&data->update_lock);
+
+	if (!data->valid || time_after(jiffies, data->last_updated + HZ * 2)) {
+		dev_dbg(&client->dev, "Updating w83l785ts data.\n");
+		data->temp[0] = w83l785ts_read_value(client,
+				W83L785TS_REG_TEMP, data->temp[0]);
+		data->temp[1] = w83l785ts_read_value(client,
+				W83L785TS_REG_TEMP_OVER, data->temp[1]);
+
+		data->last_updated = jiffies;
+		data->valid = true;
+	}
+
+	mutex_unlock(&data->update_lock);
+
+	return data;
+}
+
+module_i2c_driver(w83l785ts_driver);
+
+MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>");
+MODULE_DESCRIPTION("W83L785TS-S driver");
+MODULE_LICENSE("GPL");