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, 312 insertions, 0 deletions

diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
new file mode 100644
index 000000000..ce4e79939
--- /dev/null
+++ b/drivers/leds/leds-gpio.c
@@ -0,0 +1,312 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * LEDs driver for GPIOs
+ *
+ * Copyright (C) 2007 8D Technologies inc.
+ * Raphael Assenat <raph@8d.com>
+ * Copyright (C) 2008 Freescale Semiconductor, Inc.
+ */
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/kernel.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/slab.h>
+#include "leds.h"
+
+struct gpio_led_data {
+	struct led_classdev cdev;
+	struct gpio_desc *gpiod;
+	u8 can_sleep;
+	u8 blinking;
+	gpio_blink_set_t platform_gpio_blink_set;
+};
+
+static inline struct gpio_led_data *
+			cdev_to_gpio_led_data(struct led_classdev *led_cdev)
+{
+	return container_of(led_cdev, struct gpio_led_data, cdev);
+}
+
+static void gpio_led_set(struct led_classdev *led_cdev,
+	enum led_brightness value)
+{
+	struct gpio_led_data *led_dat = cdev_to_gpio_led_data(led_cdev);
+	int level;
+
+	if (value == LED_OFF)
+		level = 0;
+	else
+		level = 1;
+
+	if (led_dat->blinking) {
+		led_dat->platform_gpio_blink_set(led_dat->gpiod, level,
+						 NULL, NULL);
+		led_dat->blinking = 0;
+	} else {
+		if (led_dat->can_sleep)
+			gpiod_set_value_cansleep(led_dat->gpiod, level);
+		else
+			gpiod_set_value(led_dat->gpiod, level);
+	}
+}
+
+static int gpio_led_set_blocking(struct led_classdev *led_cdev,
+	enum led_brightness value)
+{
+	gpio_led_set(led_cdev, value);
+	return 0;
+}
+
+static int gpio_blink_set(struct led_classdev *led_cdev,
+	unsigned long *delay_on, unsigned long *delay_off)
+{
+	struct gpio_led_data *led_dat = cdev_to_gpio_led_data(led_cdev);
+
+	led_dat->blinking = 1;
+	return led_dat->platform_gpio_blink_set(led_dat->gpiod, GPIO_LED_BLINK,
+						delay_on, delay_off);
+}
+
+static int create_gpio_led(const struct gpio_led *template,
+	struct gpio_led_data *led_dat, struct device *parent,
+	struct fwnode_handle *fwnode, gpio_blink_set_t blink_set)
+{
+	struct led_init_data init_data = {};
+	int ret, state;
+
+	led_dat->cdev.default_trigger = template->default_trigger;
+	led_dat->can_sleep = gpiod_cansleep(led_dat->gpiod);
+	if (!led_dat->can_sleep)
+		led_dat->cdev.brightness_set = gpio_led_set;
+	else
+		led_dat->cdev.brightness_set_blocking = gpio_led_set_blocking;
+	led_dat->blinking = 0;
+	if (blink_set) {
+		led_dat->platform_gpio_blink_set = blink_set;
+		led_dat->cdev.blink_set = gpio_blink_set;
+	}
+	if (template->default_state == LEDS_GPIO_DEFSTATE_KEEP) {
+		state = gpiod_get_value_cansleep(led_dat->gpiod);
+		if (state < 0)
+			return state;
+	} else {
+		state = (template->default_state == LEDS_GPIO_DEFSTATE_ON);
+	}
+	led_dat->cdev.brightness = state;
+	led_dat->cdev.max_brightness = 1;
+	if (!template->retain_state_suspended)
+		led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
+	if (template->panic_indicator)
+		led_dat->cdev.flags |= LED_PANIC_INDICATOR;
+	if (template->retain_state_shutdown)
+		led_dat->cdev.flags |= LED_RETAIN_AT_SHUTDOWN;
+
+	ret = gpiod_direction_output(led_dat->gpiod, state);
+	if (ret < 0)
+		return ret;
+
+	if (template->name) {
+		led_dat->cdev.name = template->name;
+		ret = devm_led_classdev_register(parent, &led_dat->cdev);
+	} else {
+		init_data.fwnode = fwnode;
+		ret = devm_led_classdev_register_ext(parent, &led_dat->cdev,
+						     &init_data);
+	}
+
+	return ret;
+}
+
+struct gpio_leds_priv {
+	int num_leds;
+	struct gpio_led_data leds[];
+};
+
+static struct gpio_leds_priv *gpio_leds_create(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct fwnode_handle *child;
+	struct gpio_leds_priv *priv;
+	int count, ret;
+
+	count = device_get_child_node_count(dev);
+	if (!count)
+		return ERR_PTR(-ENODEV);
+
+	priv = devm_kzalloc(dev, struct_size(priv, leds, count), GFP_KERNEL);
+	if (!priv)
+		return ERR_PTR(-ENOMEM);
+
+	device_for_each_child_node(dev, child) {
+		struct gpio_led_data *led_dat = &priv->leds[priv->num_leds];
+		struct gpio_led led = {};
+
+		/*
+		 * Acquire gpiod from DT with uninitialized label, which
+		 * will be updated after LED class device is registered,
+		 * Only then the final LED name is known.
+		 */
+		led.gpiod = devm_fwnode_gpiod_get(dev, child, NULL, GPIOD_ASIS,
+						  NULL);
+		if (IS_ERR(led.gpiod)) {
+			fwnode_handle_put(child);
+			return ERR_CAST(led.gpiod);
+		}
+
+		led_dat->gpiod = led.gpiod;
+
+		led.default_state = led_init_default_state_get(child);
+
+		if (fwnode_property_present(child, "retain-state-suspended"))
+			led.retain_state_suspended = 1;
+		if (fwnode_property_present(child, "retain-state-shutdown"))
+			led.retain_state_shutdown = 1;
+		if (fwnode_property_present(child, "panic-indicator"))
+			led.panic_indicator = 1;
+
+		ret = create_gpio_led(&led, led_dat, dev, child, NULL);
+		if (ret < 0) {
+			fwnode_handle_put(child);
+			return ERR_PTR(ret);
+		}
+		/* Set gpiod label to match the corresponding LED name. */
+		gpiod_set_consumer_name(led_dat->gpiod,
+					led_dat->cdev.dev->kobj.name);
+		priv->num_leds++;
+	}
+
+	return priv;
+}
+
+static const struct of_device_id of_gpio_leds_match[] = {
+	{ .compatible = "gpio-leds", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, of_gpio_leds_match);
+
+static struct gpio_desc *gpio_led_get_gpiod(struct device *dev, int idx,
+					    const struct gpio_led *template)
+{
+	struct gpio_desc *gpiod;
+	unsigned long flags = GPIOF_OUT_INIT_LOW;
+	int ret;
+
+	/*
+	 * This means the LED does not come from the device tree
+	 * or ACPI, so let's try just getting it by index from the
+	 * device, this will hit the board file, if any and get
+	 * the GPIO from there.
+	 */
+	gpiod = devm_gpiod_get_index(dev, NULL, idx, GPIOD_OUT_LOW);
+	if (!IS_ERR(gpiod)) {
+		gpiod_set_consumer_name(gpiod, template->name);
+		return gpiod;
+	}
+	if (PTR_ERR(gpiod) != -ENOENT)
+		return gpiod;
+
+	/*
+	 * This is the legacy code path for platform code that
+	 * still uses GPIO numbers. Ultimately we would like to get
+	 * rid of this block completely.
+	 */
+
+	/* skip leds that aren't available */
+	if (!gpio_is_valid(template->gpio))
+		return ERR_PTR(-ENOENT);
+
+	if (template->active_low)
+		flags |= GPIOF_ACTIVE_LOW;
+
+	ret = devm_gpio_request_one(dev, template->gpio, flags,
+				    template->name);
+	if (ret < 0)
+		return ERR_PTR(ret);
+
+	gpiod = gpio_to_desc(template->gpio);
+	if (!gpiod)
+		return ERR_PTR(-EINVAL);
+
+	return gpiod;
+}
+
+static int gpio_led_probe(struct platform_device *pdev)
+{
+	struct gpio_led_platform_data *pdata = dev_get_platdata(&pdev->dev);
+	struct gpio_leds_priv *priv;
+	int i, ret = 0;
+
+	if (pdata && pdata->num_leds) {
+		priv = devm_kzalloc(&pdev->dev, struct_size(priv, leds, pdata->num_leds),
+				    GFP_KERNEL);
+		if (!priv)
+			return -ENOMEM;
+
+		priv->num_leds = pdata->num_leds;
+		for (i = 0; i < priv->num_leds; i++) {
+			const struct gpio_led *template = &pdata->leds[i];
+			struct gpio_led_data *led_dat = &priv->leds[i];
+
+			if (template->gpiod)
+				led_dat->gpiod = template->gpiod;
+			else
+				led_dat->gpiod =
+					gpio_led_get_gpiod(&pdev->dev,
+							   i, template);
+			if (IS_ERR(led_dat->gpiod)) {
+				dev_info(&pdev->dev, "Skipping unavailable LED gpio %d (%s)\n",
+					 template->gpio, template->name);
+				continue;
+			}
+
+			ret = create_gpio_led(template, led_dat,
+					      &pdev->dev, NULL,
+					      pdata->gpio_blink_set);
+			if (ret < 0)
+				return ret;
+		}
+	} else {
+		priv = gpio_leds_create(pdev);
+		if (IS_ERR(priv))
+			return PTR_ERR(priv);
+	}
+
+	platform_set_drvdata(pdev, priv);
+
+	return 0;
+}
+
+static void gpio_led_shutdown(struct platform_device *pdev)
+{
+	struct gpio_leds_priv *priv = platform_get_drvdata(pdev);
+	int i;
+
+	for (i = 0; i < priv->num_leds; i++) {
+		struct gpio_led_data *led = &priv->leds[i];
+
+		if (!(led->cdev.flags & LED_RETAIN_AT_SHUTDOWN))
+			gpio_led_set(&led->cdev, LED_OFF);
+	}
+}
+
+static struct platform_driver gpio_led_driver = {
+	.probe		= gpio_led_probe,
+	.shutdown	= gpio_led_shutdown,
+	.driver		= {
+		.name	= "leds-gpio",
+		.of_match_table = of_gpio_leds_match,
+	},
+};
+
+module_platform_driver(gpio_led_driver);
+
+MODULE_AUTHOR("Raphael Assenat <raph@8d.com>, Trent Piepho <tpiepho@freescale.com>");
+MODULE_DESCRIPTION("GPIO LED driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:leds-gpio");