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, 392 insertions, 0 deletions

diff --git a/drivers/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
new file mode 100644
index 000000000..c1a4d5055
--- /dev/null
+++ b/drivers/input/keyboard/hilkbd.c
@@ -0,0 +1,392 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  linux/drivers/hil/hilkbd.c
+ *
+ *  Copyright (C) 1998 Philip Blundell <philb@gnu.org>
+ *  Copyright (C) 1999 Matthew Wilcox <willy@infradead.org>
+ *  Copyright (C) 1999-2007 Helge Deller <deller@gmx.de>
+ *
+ *  Very basic HP Human Interface Loop (HIL) driver.
+ *  This driver handles the keyboard on HP300 (m68k) and on some
+ *  HP700 (parisc) series machines.
+ */
+
+#include <linux/pci_ids.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/hil.h>
+#include <linux/io.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <asm/irq.h>
+#ifdef CONFIG_HP300
+#include <asm/hwtest.h>
+#endif
+
+
+MODULE_AUTHOR("Philip Blundell, Matthew Wilcox, Helge Deller");
+MODULE_DESCRIPTION("HIL keyboard driver (basic functionality)");
+MODULE_LICENSE("GPL v2");
+
+
+#if defined(CONFIG_PARISC)
+
+ #include <asm/io.h>
+ #include <asm/hardware.h>
+ #include <asm/parisc-device.h>
+ static unsigned long hil_base;	/* HPA for the HIL device */
+ static unsigned int hil_irq;
+ #define HILBASE		hil_base /* HPPA (parisc) port address */
+ #define HIL_DATA		0x800
+ #define HIL_CMD		0x801
+ #define HIL_IRQ		hil_irq
+ #define hil_readb(p)		gsc_readb(p)
+ #define hil_writeb(v,p)	gsc_writeb((v),(p))
+
+#elif defined(CONFIG_HP300)
+
+ #define HILBASE		0xf0428000UL /* HP300 (m68k) port address */
+ #define HIL_DATA		0x1
+ #define HIL_CMD		0x3
+ #define HIL_IRQ		2
+ #define hil_readb(p)		readb((const volatile void __iomem *)(p))
+ #define hil_writeb(v, p)	writeb((v), (volatile void __iomem *)(p))
+
+#else
+#error "HIL is not supported on this platform"
+#endif
+
+
+
+/* HIL helper functions */
+
+#define hil_busy()              (hil_readb(HILBASE + HIL_CMD) & HIL_BUSY)
+#define hil_data_available()    (hil_readb(HILBASE + HIL_CMD) & HIL_DATA_RDY)
+#define hil_status()            (hil_readb(HILBASE + HIL_CMD))
+#define hil_command(x)          do { hil_writeb((x), HILBASE + HIL_CMD); } while (0)
+#define hil_read_data()         (hil_readb(HILBASE + HIL_DATA))
+#define hil_write_data(x)       do { hil_writeb((x), HILBASE + HIL_DATA); } while (0)
+
+/* HIL constants */
+
+#define	HIL_BUSY		0x02
+#define	HIL_DATA_RDY		0x01
+
+#define	HIL_SETARD		0xA0		/* set auto-repeat delay */
+#define	HIL_SETARR		0xA2		/* set auto-repeat rate */
+#define	HIL_SETTONE		0xA3		/* set tone generator */
+#define	HIL_CNMT		0xB2		/* clear nmi */
+#define	HIL_INTON		0x5C		/* Turn on interrupts. */
+#define	HIL_INTOFF		0x5D		/* Turn off interrupts. */
+
+#define	HIL_READKBDSADR		0xF9
+#define	HIL_WRITEKBDSADR	0xE9
+
+static unsigned int hphilkeyb_keycode[HIL_KEYCODES_SET1_TBLSIZE] __read_mostly =
+	{ HIL_KEYCODES_SET1 };
+
+/* HIL structure */
+static struct {
+	struct input_dev *dev;
+
+	unsigned int curdev;
+
+	unsigned char s;
+	unsigned char c;
+	int valid;
+
+	unsigned char data[16];
+	unsigned int ptr;
+	spinlock_t lock;
+
+	void *dev_id;	/* native bus device */
+} hil_dev;
+
+
+static void poll_finished(void)
+{
+	int down;
+	int key;
+	unsigned char scode;
+
+	switch (hil_dev.data[0]) {
+	case 0x40:
+		down = (hil_dev.data[1] & 1) == 0;
+		scode = hil_dev.data[1] >> 1;
+		key = hphilkeyb_keycode[scode];
+		input_report_key(hil_dev.dev, key, down);
+		break;
+	}
+	hil_dev.curdev = 0;
+}
+
+
+static inline void handle_status(unsigned char s, unsigned char c)
+{
+	if (c & 0x8) {
+		/* End of block */
+		if (c & 0x10)
+			poll_finished();
+	} else {
+		if (c & 0x10) {
+			if (hil_dev.curdev)
+				poll_finished();  /* just in case */
+			hil_dev.curdev = c & 7;
+			hil_dev.ptr = 0;
+		}
+	}
+}
+
+
+static inline void handle_data(unsigned char s, unsigned char c)
+{
+	if (hil_dev.curdev) {
+		hil_dev.data[hil_dev.ptr++] = c;
+		hil_dev.ptr &= 15;
+	}
+}
+
+
+/* handle HIL interrupts */
+static irqreturn_t hil_interrupt(int irq, void *handle)
+{
+	unsigned char s, c;
+
+	s = hil_status();
+	c = hil_read_data();
+
+	switch (s >> 4) {
+	case 0x5:
+		handle_status(s, c);
+		break;
+	case 0x6:
+		handle_data(s, c);
+		break;
+	case 0x4:
+		hil_dev.s = s;
+		hil_dev.c = c;
+		mb();
+		hil_dev.valid = 1;
+		break;
+	}
+	return IRQ_HANDLED;
+}
+
+
+/* send a command to the HIL */
+static void hil_do(unsigned char cmd, unsigned char *data, unsigned int len)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&hil_dev.lock, flags);
+	while (hil_busy())
+		/* wait */;
+	hil_command(cmd);
+	while (len--) {
+		while (hil_busy())
+			/* wait */;
+		hil_write_data(*(data++));
+	}
+	spin_unlock_irqrestore(&hil_dev.lock, flags);
+}
+
+
+/* initialize HIL */
+static int hil_keyb_init(void)
+{
+	unsigned char c;
+	unsigned int i, kbid;
+	wait_queue_head_t hil_wait;
+	int err;
+
+	if (hil_dev.dev)
+		return -ENODEV; /* already initialized */
+
+	init_waitqueue_head(&hil_wait);
+	spin_lock_init(&hil_dev.lock);
+
+	hil_dev.dev = input_allocate_device();
+	if (!hil_dev.dev)
+		return -ENOMEM;
+
+	err = request_irq(HIL_IRQ, hil_interrupt, 0, "hil", hil_dev.dev_id);
+	if (err) {
+		printk(KERN_ERR "HIL: Can't get IRQ\n");
+		goto err1;
+	}
+
+	/* Turn on interrupts */
+	hil_do(HIL_INTON, NULL, 0);
+
+	/* Look for keyboards */
+	hil_dev.valid = 0;	/* clear any pending data */
+	hil_do(HIL_READKBDSADR, NULL, 0);
+
+	wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3 * HZ);
+	if (!hil_dev.valid)
+		printk(KERN_WARNING "HIL: timed out, assuming no keyboard present\n");
+
+	c = hil_dev.c;
+	hil_dev.valid = 0;
+	if (c == 0) {
+		kbid = -1;
+		printk(KERN_WARNING "HIL: no keyboard present\n");
+	} else {
+		kbid = ffz(~c);
+		printk(KERN_INFO "HIL: keyboard found at id %d\n", kbid);
+	}
+
+	/* set it to raw mode */
+	c = 0;
+	hil_do(HIL_WRITEKBDSADR, &c, 1);
+
+	for (i = 0; i < HIL_KEYCODES_SET1_TBLSIZE; i++)
+		if (hphilkeyb_keycode[i] != KEY_RESERVED)
+			__set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);
+
+	hil_dev.dev->evbit[0]	= BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+	hil_dev.dev->ledbit[0]	= BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) |
+		BIT_MASK(LED_SCROLLL);
+	hil_dev.dev->keycodemax	= HIL_KEYCODES_SET1_TBLSIZE;
+	hil_dev.dev->keycodesize= sizeof(hphilkeyb_keycode[0]);
+	hil_dev.dev->keycode	= hphilkeyb_keycode;
+	hil_dev.dev->name	= "HIL keyboard";
+	hil_dev.dev->phys	= "hpkbd/input0";
+
+	hil_dev.dev->id.bustype	= BUS_HIL;
+	hil_dev.dev->id.vendor	= PCI_VENDOR_ID_HP;
+	hil_dev.dev->id.product	= 0x0001;
+	hil_dev.dev->id.version	= 0x0010;
+
+	err = input_register_device(hil_dev.dev);
+	if (err) {
+		printk(KERN_ERR "HIL: Can't register device\n");
+		goto err2;
+	}
+
+	printk(KERN_INFO "input: %s, ID %d at 0x%08lx (irq %d) found and attached\n",
+	       hil_dev.dev->name, kbid, HILBASE, HIL_IRQ);
+
+	return 0;
+
+err2:
+	hil_do(HIL_INTOFF, NULL, 0);
+	free_irq(HIL_IRQ, hil_dev.dev_id);
+err1:
+	input_free_device(hil_dev.dev);
+	hil_dev.dev = NULL;
+	return err;
+}
+
+static void hil_keyb_exit(void)
+{
+	if (HIL_IRQ)
+		free_irq(HIL_IRQ, hil_dev.dev_id);
+
+	/* Turn off interrupts */
+	hil_do(HIL_INTOFF, NULL, 0);
+
+	input_unregister_device(hil_dev.dev);
+	hil_dev.dev = NULL;
+}
+
+#if defined(CONFIG_PARISC)
+static int __init hil_probe_chip(struct parisc_device *dev)
+{
+	/* Only allow one HIL keyboard */
+	if (hil_dev.dev)
+		return -ENODEV;
+
+	if (!dev->irq) {
+		printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%p\n",
+			(void *)dev->hpa.start);
+		return -ENODEV;
+	}
+
+	hil_base = dev->hpa.start;
+	hil_irq  = dev->irq;
+	hil_dev.dev_id = dev;
+
+	printk(KERN_INFO "Found HIL bus at 0x%08lx, IRQ %d\n", hil_base, hil_irq);
+
+	return hil_keyb_init();
+}
+
+static void __exit hil_remove_chip(struct parisc_device *dev)
+{
+	hil_keyb_exit();
+}
+
+static const struct parisc_device_id hil_tbl[] __initconst = {
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00073 },
+	{ 0, }
+};
+
+#if 0
+/* Disabled to avoid conflicts with the HP SDC HIL drivers */
+MODULE_DEVICE_TABLE(parisc, hil_tbl);
+#endif
+
+static struct parisc_driver hil_driver __refdata = {
+	.name		= "hil",
+	.id_table	= hil_tbl,
+	.probe		= hil_probe_chip,
+	.remove		= __exit_p(hil_remove_chip),
+};
+
+static int __init hil_init(void)
+{
+	return register_parisc_driver(&hil_driver);
+}
+
+static void __exit hil_exit(void)
+{
+	unregister_parisc_driver(&hil_driver);
+}
+
+#else /* !CONFIG_PARISC */
+
+static int __init hil_init(void)
+{
+	int error;
+
+	/* Only allow one HIL keyboard */
+	if (hil_dev.dev)
+		return -EBUSY;
+
+	if (!MACH_IS_HP300)
+		return -ENODEV;
+
+	if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
+		printk(KERN_ERR "HIL: hardware register was not found\n");
+		return -ENODEV;
+	}
+
+	if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
+		printk(KERN_ERR "HIL: IOPORT region already used\n");
+		return -EIO;
+	}
+
+	error = hil_keyb_init();
+	if (error) {
+		release_region(HILBASE + HIL_DATA, 2);
+		return error;
+	}
+
+	return 0;
+}
+
+static void __exit hil_exit(void)
+{
+	hil_keyb_exit();
+	release_region(HILBASE + HIL_DATA, 2);
+}
+
+#endif /* CONFIG_PARISC */
+
+module_init(hil_init);
+module_exit(hil_exit);