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, 324 insertions, 0 deletions

diff --git a/drivers/hwmon/ultra45_env.c b/drivers/hwmon/ultra45_env.c
new file mode 100644
index 000000000..b23cff2e3
--- /dev/null
+++ b/drivers/hwmon/ultra45_env.c
@@ -0,0 +1,324 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * ultra45_env.c: Driver for Ultra45 PIC16F747 environmental monitor.
+ *
+ * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/io.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+
+#define DRV_MODULE_VERSION	"0.1"
+
+MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
+MODULE_DESCRIPTION("Ultra45 environmental monitor driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_MODULE_VERSION);
+
+/* PIC device registers */
+#define REG_CMD		0x00UL
+#define  REG_CMD_RESET	0x80
+#define  REG_CMD_ESTAR	0x01
+#define REG_STAT	0x01UL
+#define  REG_STAT_FWVER	0xf0
+#define  REG_STAT_TGOOD	0x08
+#define  REG_STAT_STALE	0x04
+#define  REG_STAT_BUSY	0x02
+#define  REG_STAT_FAULT	0x01
+#define REG_DATA	0x40UL
+#define REG_ADDR	0x41UL
+#define REG_SIZE	0x42UL
+
+/* Registers accessed indirectly via REG_DATA/REG_ADDR */
+#define IREG_FAN0		0x00
+#define IREG_FAN1		0x01
+#define IREG_FAN2		0x02
+#define IREG_FAN3		0x03
+#define IREG_FAN4		0x04
+#define IREG_FAN5		0x05
+#define IREG_LCL_TEMP		0x06
+#define IREG_RMT1_TEMP		0x07
+#define IREG_RMT2_TEMP		0x08
+#define IREG_RMT3_TEMP		0x09
+#define IREG_LM95221_TEMP	0x0a
+#define IREG_FIRE_TEMP		0x0b
+#define IREG_LSI1064_TEMP	0x0c
+#define IREG_FRONT_TEMP		0x0d
+#define IREG_FAN_STAT		0x0e
+#define IREG_VCORE0		0x0f
+#define IREG_VCORE1		0x10
+#define IREG_VMEM0		0x11
+#define IREG_VMEM1		0x12
+#define IREG_PSU_TEMP		0x13
+
+struct env {
+	void __iomem	*regs;
+	spinlock_t	lock;
+
+	struct device	*hwmon_dev;
+};
+
+static u8 env_read(struct env *p, u8 ireg)
+{
+	u8 ret;
+
+	spin_lock(&p->lock);
+	writeb(ireg, p->regs + REG_ADDR);
+	ret = readb(p->regs + REG_DATA);
+	spin_unlock(&p->lock);
+
+	return ret;
+}
+
+static void env_write(struct env *p, u8 ireg, u8 val)
+{
+	spin_lock(&p->lock);
+	writeb(ireg, p->regs + REG_ADDR);
+	writeb(val, p->regs + REG_DATA);
+	spin_unlock(&p->lock);
+}
+
+/*
+ * There seems to be a adr7462 providing these values, thus a lot
+ * of these calculations are borrowed from the adt7470 driver.
+ */
+#define FAN_PERIOD_TO_RPM(x)	((90000 * 60) / (x))
+#define FAN_RPM_TO_PERIOD	FAN_PERIOD_TO_RPM
+#define FAN_PERIOD_INVALID	(0xff << 8)
+#define FAN_DATA_VALID(x)	((x) && (x) != FAN_PERIOD_INVALID)
+
+static ssize_t show_fan_speed(struct device *dev, struct device_attribute *attr,
+			      char *buf)
+{
+	int fan_nr = to_sensor_dev_attr(attr)->index;
+	struct env *p = dev_get_drvdata(dev);
+	int rpm, period;
+	u8 val;
+
+	val = env_read(p, IREG_FAN0 + fan_nr);
+	period = (int) val << 8;
+	if (FAN_DATA_VALID(period))
+		rpm = FAN_PERIOD_TO_RPM(period);
+	else
+		rpm = 0;
+
+	return sprintf(buf, "%d\n", rpm);
+}
+
+static ssize_t set_fan_speed(struct device *dev, struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	int fan_nr = to_sensor_dev_attr(attr)->index;
+	unsigned long rpm;
+	struct env *p = dev_get_drvdata(dev);
+	int period;
+	u8 val;
+	int err;
+
+	err = kstrtoul(buf, 10, &rpm);
+	if (err)
+		return err;
+
+	if (!rpm)
+		return -EINVAL;
+
+	period = FAN_RPM_TO_PERIOD(rpm);
+	val = period >> 8;
+	env_write(p, IREG_FAN0 + fan_nr, val);
+
+	return count;
+}
+
+static ssize_t show_fan_fault(struct device *dev, struct device_attribute *attr,
+			      char *buf)
+{
+	int fan_nr = to_sensor_dev_attr(attr)->index;
+	struct env *p = dev_get_drvdata(dev);
+	u8 val = env_read(p, IREG_FAN_STAT);
+	return sprintf(buf, "%d\n", (val & (1 << fan_nr)) ? 1 : 0);
+}
+
+#define fan(index)							\
+static SENSOR_DEVICE_ATTR(fan##index##_speed, S_IRUGO | S_IWUSR,	\
+		show_fan_speed, set_fan_speed, index);			\
+static SENSOR_DEVICE_ATTR(fan##index##_fault, S_IRUGO,			\
+		show_fan_fault, NULL, index)
+
+fan(0);
+fan(1);
+fan(2);
+fan(3);
+fan(4);
+
+static SENSOR_DEVICE_ATTR(psu_fan_fault, S_IRUGO, show_fan_fault, NULL, 6);
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	int temp_nr = to_sensor_dev_attr(attr)->index;
+	struct env *p = dev_get_drvdata(dev);
+	s8 val;
+
+	val = env_read(p, IREG_LCL_TEMP + temp_nr);
+	return sprintf(buf, "%d\n", ((int) val) - 64);
+}
+
+static SENSOR_DEVICE_ATTR(adt7462_local_temp, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(cpu0_temp, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(cpu1_temp, S_IRUGO, show_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(motherboard_temp, S_IRUGO, show_temp, NULL, 3);
+static SENSOR_DEVICE_ATTR(lm95221_local_temp, S_IRUGO, show_temp, NULL, 4);
+static SENSOR_DEVICE_ATTR(fire_temp, S_IRUGO, show_temp, NULL, 5);
+static SENSOR_DEVICE_ATTR(lsi1064_local_temp, S_IRUGO, show_temp, NULL, 6);
+static SENSOR_DEVICE_ATTR(front_panel_temp, S_IRUGO, show_temp, NULL, 7);
+static SENSOR_DEVICE_ATTR(psu_temp, S_IRUGO, show_temp, NULL, 13);
+
+static ssize_t show_stat_bit(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct env *p = dev_get_drvdata(dev);
+	u8 val;
+
+	val = readb(p->regs + REG_STAT);
+	return sprintf(buf, "%d\n", (val & (1 << index)) ? 1 : 0);
+}
+
+static SENSOR_DEVICE_ATTR(fan_failure, S_IRUGO, show_stat_bit, NULL, 0);
+static SENSOR_DEVICE_ATTR(env_bus_busy, S_IRUGO, show_stat_bit, NULL, 1);
+static SENSOR_DEVICE_ATTR(env_data_stale, S_IRUGO, show_stat_bit, NULL, 2);
+static SENSOR_DEVICE_ATTR(tpm_self_test_passed, S_IRUGO, show_stat_bit, NULL,
+			  3);
+
+static ssize_t show_fwver(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	struct env *p = dev_get_drvdata(dev);
+	u8 val;
+
+	val = readb(p->regs + REG_STAT);
+	return sprintf(buf, "%d\n", val >> 4);
+}
+
+static SENSOR_DEVICE_ATTR(firmware_version, S_IRUGO, show_fwver, NULL, 0);
+
+static ssize_t show_name(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	return sprintf(buf, "ultra45\n");
+}
+
+static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
+
+static struct attribute *env_attributes[] = {
+	&sensor_dev_attr_fan0_speed.dev_attr.attr,
+	&sensor_dev_attr_fan0_fault.dev_attr.attr,
+	&sensor_dev_attr_fan1_speed.dev_attr.attr,
+	&sensor_dev_attr_fan1_fault.dev_attr.attr,
+	&sensor_dev_attr_fan2_speed.dev_attr.attr,
+	&sensor_dev_attr_fan2_fault.dev_attr.attr,
+	&sensor_dev_attr_fan3_speed.dev_attr.attr,
+	&sensor_dev_attr_fan3_fault.dev_attr.attr,
+	&sensor_dev_attr_fan4_speed.dev_attr.attr,
+	&sensor_dev_attr_fan4_fault.dev_attr.attr,
+	&sensor_dev_attr_psu_fan_fault.dev_attr.attr,
+	&sensor_dev_attr_adt7462_local_temp.dev_attr.attr,
+	&sensor_dev_attr_cpu0_temp.dev_attr.attr,
+	&sensor_dev_attr_cpu1_temp.dev_attr.attr,
+	&sensor_dev_attr_motherboard_temp.dev_attr.attr,
+	&sensor_dev_attr_lm95221_local_temp.dev_attr.attr,
+	&sensor_dev_attr_fire_temp.dev_attr.attr,
+	&sensor_dev_attr_lsi1064_local_temp.dev_attr.attr,
+	&sensor_dev_attr_front_panel_temp.dev_attr.attr,
+	&sensor_dev_attr_psu_temp.dev_attr.attr,
+	&sensor_dev_attr_fan_failure.dev_attr.attr,
+	&sensor_dev_attr_env_bus_busy.dev_attr.attr,
+	&sensor_dev_attr_env_data_stale.dev_attr.attr,
+	&sensor_dev_attr_tpm_self_test_passed.dev_attr.attr,
+	&sensor_dev_attr_firmware_version.dev_attr.attr,
+	&sensor_dev_attr_name.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group env_group = {
+	.attrs = env_attributes,
+};
+
+static int env_probe(struct platform_device *op)
+{
+	struct env *p = devm_kzalloc(&op->dev, sizeof(*p), GFP_KERNEL);
+	int err = -ENOMEM;
+
+	if (!p)
+		goto out;
+
+	spin_lock_init(&p->lock);
+
+	p->regs = of_ioremap(&op->resource[0], 0, REG_SIZE, "pic16f747");
+	if (!p->regs)
+		goto out;
+
+	err = sysfs_create_group(&op->dev.kobj, &env_group);
+	if (err)
+		goto out_iounmap;
+
+	p->hwmon_dev = hwmon_device_register(&op->dev);
+	if (IS_ERR(p->hwmon_dev)) {
+		err = PTR_ERR(p->hwmon_dev);
+		goto out_sysfs_remove_group;
+	}
+
+	platform_set_drvdata(op, p);
+	err = 0;
+
+out:
+	return err;
+
+out_sysfs_remove_group:
+	sysfs_remove_group(&op->dev.kobj, &env_group);
+
+out_iounmap:
+	of_iounmap(&op->resource[0], p->regs, REG_SIZE);
+
+	goto out;
+}
+
+static int env_remove(struct platform_device *op)
+{
+	struct env *p = platform_get_drvdata(op);
+
+	if (p) {
+		sysfs_remove_group(&op->dev.kobj, &env_group);
+		hwmon_device_unregister(p->hwmon_dev);
+		of_iounmap(&op->resource[0], p->regs, REG_SIZE);
+	}
+
+	return 0;
+}
+
+static const struct of_device_id env_match[] = {
+	{
+		.name = "env-monitor",
+		.compatible = "SUNW,ebus-pic16f747-env",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, env_match);
+
+static struct platform_driver env_driver = {
+	.driver = {
+		.name = "ultra45_env",
+		.of_match_table = env_match,
+	},
+	.probe		= env_probe,
+	.remove		= env_remove,
+};
+
+module_platform_driver(env_driver);