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, 304 insertions, 0 deletions

diff --git a/drivers/input/misc/apanel.c b/drivers/input/misc/apanel.c
new file mode 100644
index 000000000..f42d3219c
--- /dev/null
+++ b/drivers/input/misc/apanel.c
@@ -0,0 +1,304 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Fujitsu Lifebook Application Panel button drive
+ *
+ *  Copyright (C) 2007 Stephen Hemminger <shemminger@linux-foundation.org>
+ *  Copyright (C) 2001-2003 Jochen Eisinger <jochen@penguin-breeder.org>
+ *
+ * Many Fujitsu Lifebook laptops have a small panel of buttons that are
+ * accessible via the i2c/smbus interface. This driver polls those
+ * buttons and generates input events.
+ *
+ * For more details see:
+ *	http://apanel.sourceforge.net/tech.php
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/io.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <linux/leds.h>
+
+#define APANEL_NAME	"Fujitsu Application Panel"
+#define APANEL		"apanel"
+
+/* How often we poll keys - msecs */
+#define POLL_INTERVAL_DEFAULT	1000
+
+/* Magic constants in BIOS that tell about buttons */
+enum apanel_devid {
+	APANEL_DEV_NONE	  = 0,
+	APANEL_DEV_APPBTN = 1,
+	APANEL_DEV_CDBTN  = 2,
+	APANEL_DEV_LCD	  = 3,
+	APANEL_DEV_LED	  = 4,
+
+	APANEL_DEV_MAX,
+};
+
+enum apanel_chip {
+	CHIP_NONE    = 0,
+	CHIP_OZ992C  = 1,
+	CHIP_OZ163T  = 2,
+	CHIP_OZ711M3 = 4,
+};
+
+/* Result of BIOS snooping/probing -- what features are supported */
+static enum apanel_chip device_chip[APANEL_DEV_MAX];
+
+#define MAX_PANEL_KEYS	12
+
+struct apanel {
+	struct input_dev *idev;
+	struct i2c_client *client;
+	unsigned short keymap[MAX_PANEL_KEYS];
+	u16 nkeys;
+	struct led_classdev mail_led;
+};
+
+static const unsigned short apanel_keymap[MAX_PANEL_KEYS] = {
+	[0] = KEY_MAIL,
+	[1] = KEY_WWW,
+	[2] = KEY_PROG2,
+	[3] = KEY_PROG1,
+
+	[8] = KEY_FORWARD,
+	[9] = KEY_REWIND,
+	[10] = KEY_STOPCD,
+	[11] = KEY_PLAYPAUSE,
+};
+
+static void report_key(struct input_dev *input, unsigned keycode)
+{
+	dev_dbg(input->dev.parent, "report key %#x\n", keycode);
+	input_report_key(input, keycode, 1);
+	input_sync(input);
+
+	input_report_key(input, keycode, 0);
+	input_sync(input);
+}
+
+/* Poll for key changes
+ *
+ * Read Application keys via SMI
+ *  A (0x4), B (0x8), Internet (0x2), Email (0x1).
+ *
+ * CD keys:
+ * Forward (0x100), Rewind (0x200), Stop (0x400), Pause (0x800)
+ */
+static void apanel_poll(struct input_dev *idev)
+{
+	struct apanel *ap = input_get_drvdata(idev);
+	u8 cmd = device_chip[APANEL_DEV_APPBTN] == CHIP_OZ992C ? 0 : 8;
+	s32 data;
+	int i;
+
+	data = i2c_smbus_read_word_data(ap->client, cmd);
+	if (data < 0)
+		return;	/* ignore errors (due to ACPI??) */
+
+	/* write back to clear latch */
+	i2c_smbus_write_word_data(ap->client, cmd, 0);
+
+	if (!data)
+		return;
+
+	dev_dbg(&idev->dev, APANEL ": data %#x\n", data);
+	for (i = 0; i < idev->keycodemax; i++)
+		if ((1u << i) & data)
+			report_key(idev, ap->keymap[i]);
+}
+
+static int mail_led_set(struct led_classdev *led,
+			 enum led_brightness value)
+{
+	struct apanel *ap = container_of(led, struct apanel, mail_led);
+	u16 led_bits = value != LED_OFF ? 0x8000 : 0x0000;
+
+	return i2c_smbus_write_word_data(ap->client, 0x10, led_bits);
+}
+
+static int apanel_probe(struct i2c_client *client)
+{
+	struct apanel *ap;
+	struct input_dev *idev;
+	u8 cmd = device_chip[APANEL_DEV_APPBTN] == CHIP_OZ992C ? 0 : 8;
+	int i, err;
+
+	ap = devm_kzalloc(&client->dev, sizeof(*ap), GFP_KERNEL);
+	if (!ap)
+		return -ENOMEM;
+
+	idev = devm_input_allocate_device(&client->dev);
+	if (!idev)
+		return -ENOMEM;
+
+	ap->idev = idev;
+	ap->client = client;
+
+	i2c_set_clientdata(client, ap);
+
+	err = i2c_smbus_write_word_data(client, cmd, 0);
+	if (err) {
+		dev_warn(&client->dev, "smbus write error %d\n", err);
+		return err;
+	}
+
+	input_set_drvdata(idev, ap);
+
+	idev->name = APANEL_NAME " buttons";
+	idev->phys = "apanel/input0";
+	idev->id.bustype = BUS_HOST;
+
+	memcpy(ap->keymap, apanel_keymap, sizeof(apanel_keymap));
+	idev->keycode = ap->keymap;
+	idev->keycodesize = sizeof(ap->keymap[0]);
+	idev->keycodemax = (device_chip[APANEL_DEV_CDBTN] != CHIP_NONE) ? 12 : 4;
+
+	set_bit(EV_KEY, idev->evbit);
+	for (i = 0; i < idev->keycodemax; i++)
+		if (ap->keymap[i])
+			set_bit(ap->keymap[i], idev->keybit);
+
+	err = input_setup_polling(idev, apanel_poll);
+	if (err)
+		return err;
+
+	input_set_poll_interval(idev, POLL_INTERVAL_DEFAULT);
+
+	err = input_register_device(idev);
+	if (err)
+		return err;
+
+	if (device_chip[APANEL_DEV_LED] != CHIP_NONE) {
+		ap->mail_led.name = "mail:blue";
+		ap->mail_led.brightness_set_blocking = mail_led_set;
+		err = devm_led_classdev_register(&client->dev, &ap->mail_led);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+static void apanel_shutdown(struct i2c_client *client)
+{
+	struct apanel *ap = i2c_get_clientdata(client);
+
+	if (device_chip[APANEL_DEV_LED] != CHIP_NONE)
+		led_set_brightness(&ap->mail_led, LED_OFF);
+}
+
+static const struct i2c_device_id apanel_id[] = {
+	{ "fujitsu_apanel", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, apanel_id);
+
+static struct i2c_driver apanel_driver = {
+	.driver = {
+		.name = APANEL,
+	},
+	.probe_new	= apanel_probe,
+	.shutdown	= apanel_shutdown,
+	.id_table	= apanel_id,
+};
+
+/* Scan the system ROM for the signature "FJKEYINF" */
+static __init const void __iomem *bios_signature(const void __iomem *bios)
+{
+	ssize_t offset;
+	const unsigned char signature[] = "FJKEYINF";
+
+	for (offset = 0; offset < 0x10000; offset += 0x10) {
+		if (check_signature(bios + offset, signature,
+				    sizeof(signature)-1))
+			return bios + offset;
+	}
+	pr_notice(APANEL ": Fujitsu BIOS signature '%s' not found...\n",
+		  signature);
+	return NULL;
+}
+
+static int __init apanel_init(void)
+{
+	void __iomem *bios;
+	const void __iomem *p;
+	u8 devno;
+	unsigned char i2c_addr;
+	int found = 0;
+
+	bios = ioremap(0xF0000, 0x10000); /* Can't fail */
+
+	p = bios_signature(bios);
+	if (!p) {
+		iounmap(bios);
+		return -ENODEV;
+	}
+
+	/* just use the first address */
+	p += 8;
+	i2c_addr = readb(p + 3) >> 1;
+
+	for ( ; (devno = readb(p)) & 0x7f; p += 4) {
+		unsigned char method, slave, chip;
+
+		method = readb(p + 1);
+		chip = readb(p + 2);
+		slave = readb(p + 3) >> 1;
+
+		if (slave != i2c_addr) {
+			pr_notice(APANEL ": only one SMBus slave "
+				  "address supported, skipping device...\n");
+			continue;
+		}
+
+		/* translate alternative device numbers */
+		switch (devno) {
+		case 6:
+			devno = APANEL_DEV_APPBTN;
+			break;
+		case 7:
+			devno = APANEL_DEV_LED;
+			break;
+		}
+
+		if (devno >= APANEL_DEV_MAX)
+			pr_notice(APANEL ": unknown device %u found\n", devno);
+		else if (device_chip[devno] != CHIP_NONE)
+			pr_warn(APANEL ": duplicate entry for devno %u\n",
+				devno);
+
+		else if (method != 1 && method != 2 && method != 4) {
+			pr_notice(APANEL ": unknown method %u for devno %u\n",
+				  method, devno);
+		} else {
+			device_chip[devno] = (enum apanel_chip) chip;
+			++found;
+		}
+	}
+	iounmap(bios);
+
+	if (found == 0) {
+		pr_info(APANEL ": no input devices reported by BIOS\n");
+		return -EIO;
+	}
+
+	return i2c_add_driver(&apanel_driver);
+}
+module_init(apanel_init);
+
+static void __exit apanel_cleanup(void)
+{
+	i2c_del_driver(&apanel_driver);
+}
+module_exit(apanel_cleanup);
+
+MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
+MODULE_DESCRIPTION(APANEL_NAME " driver");
+MODULE_LICENSE("GPL");
+
+MODULE_ALIAS("dmi:*:svnFUJITSU:pnLifeBook*:pvr*:rvnFUJITSU:*");
+MODULE_ALIAS("dmi:*:svnFUJITSU:pnLifebook*:pvr*:rvnFUJITSU:*");