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, 377 insertions, 0 deletions

diff --git a/drivers/input/keyboard/sunkbd.c b/drivers/input/keyboard/sunkbd.c
new file mode 100644
index 000000000..b123a208e
--- /dev/null
+++ b/drivers/input/keyboard/sunkbd.c
@@ -0,0 +1,377 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Sun keyboard driver for Linux
+ */
+
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/workqueue.h>
+
+#define DRIVER_DESC	"Sun keyboard driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+static unsigned char sunkbd_keycode[128] = {
+	  0,128,114,129,115, 59, 60, 68, 61, 87, 62, 88, 63,100, 64,112,
+	 65, 66, 67, 56,103,119, 99, 70,105,130,131,108,106,  1,  2,  3,
+	  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 41, 14,110,113, 98, 55,
+	116,132, 83,133,102, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
+	 26, 27,111,127, 71, 72, 73, 74,134,135,107,  0, 29, 30, 31, 32,
+	 33, 34, 35, 36, 37, 38, 39, 40, 43, 28, 96, 75, 76, 77, 82,136,
+	104,137, 69, 42, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,101,
+	 79, 80, 81,  0,  0,  0,138, 58,125, 57,126,109, 86, 78
+};
+
+#define SUNKBD_CMD_RESET	0x1
+#define SUNKBD_CMD_BELLON	0x2
+#define SUNKBD_CMD_BELLOFF	0x3
+#define SUNKBD_CMD_CLICK	0xa
+#define SUNKBD_CMD_NOCLICK	0xb
+#define SUNKBD_CMD_SETLED	0xe
+#define SUNKBD_CMD_LAYOUT	0xf
+
+#define SUNKBD_RET_RESET	0xff
+#define SUNKBD_RET_ALLUP	0x7f
+#define SUNKBD_RET_LAYOUT	0xfe
+
+#define SUNKBD_LAYOUT_5_MASK	0x20
+#define SUNKBD_RELEASE		0x80
+#define SUNKBD_KEY		0x7f
+
+/*
+ * Per-keyboard data.
+ */
+
+struct sunkbd {
+	unsigned char keycode[ARRAY_SIZE(sunkbd_keycode)];
+	struct input_dev *dev;
+	struct serio *serio;
+	struct work_struct tq;
+	wait_queue_head_t wait;
+	char name[64];
+	char phys[32];
+	char type;
+	bool enabled;
+	volatile s8 reset;
+	volatile s8 layout;
+};
+
+/*
+ * sunkbd_interrupt() is called by the low level driver when a character
+ * is received.
+ */
+
+static irqreturn_t sunkbd_interrupt(struct serio *serio,
+		unsigned char data, unsigned int flags)
+{
+	struct sunkbd *sunkbd = serio_get_drvdata(serio);
+
+	if (sunkbd->reset <= -1) {
+		/*
+		 * If cp[i] is 0xff, sunkbd->reset will stay -1.
+		 * The keyboard sends 0xff 0xff 0xID on powerup.
+		 */
+		sunkbd->reset = data;
+		wake_up_interruptible(&sunkbd->wait);
+		goto out;
+	}
+
+	if (sunkbd->layout == -1) {
+		sunkbd->layout = data;
+		wake_up_interruptible(&sunkbd->wait);
+		goto out;
+	}
+
+	switch (data) {
+
+	case SUNKBD_RET_RESET:
+		if (sunkbd->enabled)
+			schedule_work(&sunkbd->tq);
+		sunkbd->reset = -1;
+		break;
+
+	case SUNKBD_RET_LAYOUT:
+		sunkbd->layout = -1;
+		break;
+
+	case SUNKBD_RET_ALLUP: /* All keys released */
+		break;
+
+	default:
+		if (!sunkbd->enabled)
+			break;
+
+		if (sunkbd->keycode[data & SUNKBD_KEY]) {
+			input_report_key(sunkbd->dev,
+					 sunkbd->keycode[data & SUNKBD_KEY],
+					 !(data & SUNKBD_RELEASE));
+			input_sync(sunkbd->dev);
+		} else {
+			printk(KERN_WARNING
+				"sunkbd.c: Unknown key (scancode %#x) %s.\n",
+				data & SUNKBD_KEY,
+				data & SUNKBD_RELEASE ? "released" : "pressed");
+		}
+	}
+out:
+	return IRQ_HANDLED;
+}
+
+/*
+ * sunkbd_event() handles events from the input module.
+ */
+
+static int sunkbd_event(struct input_dev *dev,
+			unsigned int type, unsigned int code, int value)
+{
+	struct sunkbd *sunkbd = input_get_drvdata(dev);
+
+	switch (type) {
+
+	case EV_LED:
+
+		serio_write(sunkbd->serio, SUNKBD_CMD_SETLED);
+		serio_write(sunkbd->serio,
+			(!!test_bit(LED_CAPSL,   dev->led) << 3) |
+			(!!test_bit(LED_SCROLLL, dev->led) << 2) |
+			(!!test_bit(LED_COMPOSE, dev->led) << 1) |
+			 !!test_bit(LED_NUML,    dev->led));
+		return 0;
+
+	case EV_SND:
+
+		switch (code) {
+
+		case SND_CLICK:
+			serio_write(sunkbd->serio, SUNKBD_CMD_NOCLICK - value);
+			return 0;
+
+		case SND_BELL:
+			serio_write(sunkbd->serio, SUNKBD_CMD_BELLOFF - value);
+			return 0;
+		}
+
+		break;
+	}
+
+	return -1;
+}
+
+/*
+ * sunkbd_initialize() checks for a Sun keyboard attached, and determines
+ * its type.
+ */
+
+static int sunkbd_initialize(struct sunkbd *sunkbd)
+{
+	sunkbd->reset = -2;
+	serio_write(sunkbd->serio, SUNKBD_CMD_RESET);
+	wait_event_interruptible_timeout(sunkbd->wait, sunkbd->reset >= 0, HZ);
+	if (sunkbd->reset < 0)
+		return -1;
+
+	sunkbd->type = sunkbd->reset;
+
+	if (sunkbd->type == 4) {	/* Type 4 keyboard */
+		sunkbd->layout = -2;
+		serio_write(sunkbd->serio, SUNKBD_CMD_LAYOUT);
+		wait_event_interruptible_timeout(sunkbd->wait,
+						 sunkbd->layout >= 0, HZ / 4);
+		if (sunkbd->layout < 0)
+			return -1;
+		if (sunkbd->layout & SUNKBD_LAYOUT_5_MASK)
+			sunkbd->type = 5;
+	}
+
+	return 0;
+}
+
+/*
+ * sunkbd_set_leds_beeps() sets leds and beeps to a state the computer remembers
+ * they were in.
+ */
+
+static void sunkbd_set_leds_beeps(struct sunkbd *sunkbd)
+{
+	serio_write(sunkbd->serio, SUNKBD_CMD_SETLED);
+	serio_write(sunkbd->serio,
+		(!!test_bit(LED_CAPSL,   sunkbd->dev->led) << 3) |
+		(!!test_bit(LED_SCROLLL, sunkbd->dev->led) << 2) |
+		(!!test_bit(LED_COMPOSE, sunkbd->dev->led) << 1) |
+		 !!test_bit(LED_NUML,    sunkbd->dev->led));
+	serio_write(sunkbd->serio,
+		SUNKBD_CMD_NOCLICK - !!test_bit(SND_CLICK, sunkbd->dev->snd));
+	serio_write(sunkbd->serio,
+		SUNKBD_CMD_BELLOFF - !!test_bit(SND_BELL, sunkbd->dev->snd));
+}
+
+
+/*
+ * sunkbd_reinit() wait for the keyboard reset to complete and restores state
+ * of leds and beeps.
+ */
+
+static void sunkbd_reinit(struct work_struct *work)
+{
+	struct sunkbd *sunkbd = container_of(work, struct sunkbd, tq);
+
+	/*
+	 * It is OK that we check sunkbd->enabled without pausing serio,
+	 * as we only want to catch true->false transition that will
+	 * happen once and we will be woken up for it.
+	 */
+	wait_event_interruptible_timeout(sunkbd->wait,
+					 sunkbd->reset >= 0 || !sunkbd->enabled,
+					 HZ);
+
+	if (sunkbd->reset >= 0 && sunkbd->enabled)
+		sunkbd_set_leds_beeps(sunkbd);
+}
+
+static void sunkbd_enable(struct sunkbd *sunkbd, bool enable)
+{
+	serio_pause_rx(sunkbd->serio);
+	sunkbd->enabled = enable;
+	serio_continue_rx(sunkbd->serio);
+
+	if (!enable) {
+		wake_up_interruptible(&sunkbd->wait);
+		cancel_work_sync(&sunkbd->tq);
+	}
+}
+
+/*
+ * sunkbd_connect() probes for a Sun keyboard and fills the necessary
+ * structures.
+ */
+
+static int sunkbd_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct sunkbd *sunkbd;
+	struct input_dev *input_dev;
+	int err = -ENOMEM;
+	int i;
+
+	sunkbd = kzalloc(sizeof(struct sunkbd), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!sunkbd || !input_dev)
+		goto fail1;
+
+	sunkbd->serio = serio;
+	sunkbd->dev = input_dev;
+	init_waitqueue_head(&sunkbd->wait);
+	INIT_WORK(&sunkbd->tq, sunkbd_reinit);
+	snprintf(sunkbd->phys, sizeof(sunkbd->phys), "%s/input0", serio->phys);
+
+	serio_set_drvdata(serio, sunkbd);
+
+	err = serio_open(serio, drv);
+	if (err)
+		goto fail2;
+
+	if (sunkbd_initialize(sunkbd) < 0) {
+		err = -ENODEV;
+		goto fail3;
+	}
+
+	snprintf(sunkbd->name, sizeof(sunkbd->name),
+		 "Sun Type %d keyboard", sunkbd->type);
+	memcpy(sunkbd->keycode, sunkbd_keycode, sizeof(sunkbd->keycode));
+
+	input_dev->name = sunkbd->name;
+	input_dev->phys = sunkbd->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor  = SERIO_SUNKBD;
+	input_dev->id.product = sunkbd->type;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &serio->dev;
+
+	input_set_drvdata(input_dev, sunkbd);
+
+	input_dev->event = sunkbd_event;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_LED) |
+		BIT_MASK(EV_SND) | BIT_MASK(EV_REP);
+	input_dev->ledbit[0] = BIT_MASK(LED_CAPSL) | BIT_MASK(LED_COMPOSE) |
+		BIT_MASK(LED_SCROLLL) | BIT_MASK(LED_NUML);
+	input_dev->sndbit[0] = BIT_MASK(SND_CLICK) | BIT_MASK(SND_BELL);
+
+	input_dev->keycode = sunkbd->keycode;
+	input_dev->keycodesize = sizeof(unsigned char);
+	input_dev->keycodemax = ARRAY_SIZE(sunkbd_keycode);
+	for (i = 0; i < ARRAY_SIZE(sunkbd_keycode); i++)
+		__set_bit(sunkbd->keycode[i], input_dev->keybit);
+	__clear_bit(KEY_RESERVED, input_dev->keybit);
+
+	sunkbd_enable(sunkbd, true);
+
+	err = input_register_device(sunkbd->dev);
+	if (err)
+		goto fail4;
+
+	return 0;
+
+ fail4:	sunkbd_enable(sunkbd, false);
+ fail3:	serio_close(serio);
+ fail2:	serio_set_drvdata(serio, NULL);
+ fail1:	input_free_device(input_dev);
+	kfree(sunkbd);
+	return err;
+}
+
+/*
+ * sunkbd_disconnect() unregisters and closes behind us.
+ */
+
+static void sunkbd_disconnect(struct serio *serio)
+{
+	struct sunkbd *sunkbd = serio_get_drvdata(serio);
+
+	sunkbd_enable(sunkbd, false);
+	input_unregister_device(sunkbd->dev);
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	kfree(sunkbd);
+}
+
+static const struct serio_device_id sunkbd_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_SUNKBD,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_UNKNOWN, /* sunkbd does probe */
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, sunkbd_serio_ids);
+
+static struct serio_driver sunkbd_drv = {
+	.driver		= {
+		.name	= "sunkbd",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= sunkbd_serio_ids,
+	.interrupt	= sunkbd_interrupt,
+	.connect	= sunkbd_connect,
+	.disconnect	= sunkbd_disconnect,
+};
+
+module_serio_driver(sunkbd_drv);