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, 407 insertions, 0 deletions

diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c
new file mode 100644
index 000000000..ea39243ef
--- /dev/null
+++ b/drivers/usb/misc/idmouse.c
@@ -0,0 +1,407 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Siemens ID Mouse driver v0.6
+
+  Copyright (C) 2004-5 by Florian 'Floe' Echtler  <echtler@fs.tum.de>
+                      and Andreas  'ad'  Deresch <aderesch@fs.tum.de>
+
+  Derived from the USB Skeleton driver 1.1,
+  Copyright (C) 2003 Greg Kroah-Hartman (greg@kroah.com)
+
+  Additional information provided by Martin Reising
+  <Martin.Reising@natural-computing.de>
+
+*/
+
+#include <linux/kernel.h>
+#include <linux/sched/signal.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/completion.h>
+#include <linux/mutex.h>
+#include <linux/uaccess.h>
+#include <linux/usb.h>
+
+/* image constants */
+#define WIDTH 225
+#define HEIGHT 289
+#define HEADER "P5 225 289 255 "
+#define IMGSIZE ((WIDTH * HEIGHT) + sizeof(HEADER)-1)
+
+#define DRIVER_SHORT   "idmouse"
+#define DRIVER_AUTHOR  "Florian 'Floe' Echtler <echtler@fs.tum.de>"
+#define DRIVER_DESC    "Siemens ID Mouse FingerTIP Sensor Driver"
+
+/* minor number for misc USB devices */
+#define USB_IDMOUSE_MINOR_BASE 132
+
+/* vendor and device IDs */
+#define ID_SIEMENS 0x0681
+#define ID_IDMOUSE 0x0005
+#define ID_CHERRY  0x0010
+
+/* device ID table */
+static const struct usb_device_id idmouse_table[] = {
+	{USB_DEVICE(ID_SIEMENS, ID_IDMOUSE)}, /* Siemens ID Mouse (Professional) */
+	{USB_DEVICE(ID_SIEMENS, ID_CHERRY )}, /* Cherry FingerTIP ID Board       */
+	{}                                    /* terminating null entry          */
+};
+
+/* sensor commands */
+#define FTIP_RESET   0x20
+#define FTIP_ACQUIRE 0x21
+#define FTIP_RELEASE 0x22
+#define FTIP_BLINK   0x23  /* LSB of value = blink pulse width */
+#define FTIP_SCROLL  0x24
+
+#define ftip_command(dev, command, value, index) \
+	usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), command, \
+	USB_TYPE_VENDOR | USB_RECIP_ENDPOINT | USB_DIR_OUT, value, index, NULL, 0, 1000)
+
+MODULE_DEVICE_TABLE(usb, idmouse_table);
+
+/* structure to hold all of our device specific stuff */
+struct usb_idmouse {
+
+	struct usb_device *udev; /* save off the usb device pointer */
+	struct usb_interface *interface; /* the interface for this device */
+
+	unsigned char *bulk_in_buffer; /* the buffer to receive data */
+	size_t bulk_in_size; /* the maximum bulk packet size */
+	size_t orig_bi_size; /* same as above, but reported by the device */
+	__u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */
+
+	int open; /* if the port is open or not */
+	int present; /* if the device is not disconnected */
+	struct mutex lock; /* locks this structure */
+
+};
+
+/* local function prototypes */
+static ssize_t idmouse_read(struct file *file, char __user *buffer,
+				size_t count, loff_t * ppos);
+
+static int idmouse_open(struct inode *inode, struct file *file);
+static int idmouse_release(struct inode *inode, struct file *file);
+
+static int idmouse_probe(struct usb_interface *interface,
+				const struct usb_device_id *id);
+
+static void idmouse_disconnect(struct usb_interface *interface);
+static int idmouse_suspend(struct usb_interface *intf, pm_message_t message);
+static int idmouse_resume(struct usb_interface *intf);
+
+/* file operation pointers */
+static const struct file_operations idmouse_fops = {
+	.owner = THIS_MODULE,
+	.read = idmouse_read,
+	.open = idmouse_open,
+	.release = idmouse_release,
+	.llseek = default_llseek,
+};
+
+/* class driver information */
+static struct usb_class_driver idmouse_class = {
+	.name = "idmouse%d",
+	.fops = &idmouse_fops,
+	.minor_base = USB_IDMOUSE_MINOR_BASE,
+};
+
+/* usb specific object needed to register this driver with the usb subsystem */
+static struct usb_driver idmouse_driver = {
+	.name = DRIVER_SHORT,
+	.probe = idmouse_probe,
+	.disconnect = idmouse_disconnect,
+	.suspend = idmouse_suspend,
+	.resume = idmouse_resume,
+	.reset_resume = idmouse_resume,
+	.id_table = idmouse_table,
+	.supports_autosuspend = 1,
+};
+
+static int idmouse_create_image(struct usb_idmouse *dev)
+{
+	int bytes_read;
+	int bulk_read;
+	int result;
+
+	memcpy(dev->bulk_in_buffer, HEADER, sizeof(HEADER)-1);
+	bytes_read = sizeof(HEADER)-1;
+
+	/* reset the device and set a fast blink rate */
+	result = ftip_command(dev, FTIP_RELEASE, 0, 0);
+	if (result < 0)
+		goto reset;
+	result = ftip_command(dev, FTIP_BLINK,   1, 0);
+	if (result < 0)
+		goto reset;
+
+	/* initialize the sensor - sending this command twice */
+	/* significantly reduces the rate of failed reads     */
+	result = ftip_command(dev, FTIP_ACQUIRE, 0, 0);
+	if (result < 0)
+		goto reset;
+	result = ftip_command(dev, FTIP_ACQUIRE, 0, 0);
+	if (result < 0)
+		goto reset;
+
+	/* start the readout - sending this command twice */
+	/* presumably enables the high dynamic range mode */
+	result = ftip_command(dev, FTIP_RESET,   0, 0);
+	if (result < 0)
+		goto reset;
+	result = ftip_command(dev, FTIP_RESET,   0, 0);
+	if (result < 0)
+		goto reset;
+
+	/* loop over a blocking bulk read to get data from the device */
+	while (bytes_read < IMGSIZE) {
+		result = usb_bulk_msg(dev->udev,
+				usb_rcvbulkpipe(dev->udev, dev->bulk_in_endpointAddr),
+				dev->bulk_in_buffer + bytes_read,
+				dev->bulk_in_size, &bulk_read, 5000);
+		if (result < 0) {
+			/* Maybe this error was caused by the increased packet size? */
+			/* Reset to the original value and tell userspace to retry.  */
+			if (dev->bulk_in_size != dev->orig_bi_size) {
+				dev->bulk_in_size = dev->orig_bi_size;
+				result = -EAGAIN;
+			}
+			break;
+		}
+		if (signal_pending(current)) {
+			result = -EINTR;
+			break;
+		}
+		bytes_read += bulk_read;
+	}
+
+	/* check for valid image */
+	/* right border should be black (0x00) */
+	for (bytes_read = sizeof(HEADER)-1 + WIDTH-1; bytes_read < IMGSIZE; bytes_read += WIDTH)
+		if (dev->bulk_in_buffer[bytes_read] != 0x00)
+			return -EAGAIN;
+
+	/* lower border should be white (0xFF) */
+	for (bytes_read = IMGSIZE-WIDTH; bytes_read < IMGSIZE-1; bytes_read++)
+		if (dev->bulk_in_buffer[bytes_read] != 0xFF)
+			return -EAGAIN;
+
+	/* reset the device */
+reset:
+	ftip_command(dev, FTIP_RELEASE, 0, 0);
+
+	/* should be IMGSIZE == 65040 */
+	dev_dbg(&dev->interface->dev, "read %d bytes fingerprint data\n",
+		bytes_read);
+	return result;
+}
+
+/* PM operations are nops as this driver does IO only during open() */
+static int idmouse_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	return 0;
+}
+
+static int idmouse_resume(struct usb_interface *intf)
+{
+	return 0;
+}
+
+static inline void idmouse_delete(struct usb_idmouse *dev)
+{
+	kfree(dev->bulk_in_buffer);
+	kfree(dev);
+}
+
+static int idmouse_open(struct inode *inode, struct file *file)
+{
+	struct usb_idmouse *dev;
+	struct usb_interface *interface;
+	int result;
+
+	/* get the interface from minor number and driver information */
+	interface = usb_find_interface(&idmouse_driver, iminor(inode));
+	if (!interface)
+		return -ENODEV;
+
+	/* get the device information block from the interface */
+	dev = usb_get_intfdata(interface);
+	if (!dev)
+		return -ENODEV;
+
+	/* lock this device */
+	mutex_lock(&dev->lock);
+
+	/* check if already open */
+	if (dev->open) {
+
+		/* already open, so fail */
+		result = -EBUSY;
+
+	} else {
+
+		/* create a new image and check for success */
+		result = usb_autopm_get_interface(interface);
+		if (result)
+			goto error;
+		result = idmouse_create_image(dev);
+		usb_autopm_put_interface(interface);
+		if (result)
+			goto error;
+
+		/* increment our usage count for the driver */
+		++dev->open;
+
+		/* save our object in the file's private structure */
+		file->private_data = dev;
+
+	} 
+
+error:
+
+	/* unlock this device */
+	mutex_unlock(&dev->lock);
+	return result;
+}
+
+static int idmouse_release(struct inode *inode, struct file *file)
+{
+	struct usb_idmouse *dev;
+
+	dev = file->private_data;
+
+	if (dev == NULL)
+		return -ENODEV;
+
+	/* lock our device */
+	mutex_lock(&dev->lock);
+
+	--dev->open;
+
+	if (!dev->present) {
+		/* the device was unplugged before the file was released */
+		mutex_unlock(&dev->lock);
+		idmouse_delete(dev);
+	} else {
+		mutex_unlock(&dev->lock);
+	}
+	return 0;
+}
+
+static ssize_t idmouse_read(struct file *file, char __user *buffer, size_t count,
+				loff_t * ppos)
+{
+	struct usb_idmouse *dev = file->private_data;
+	int result;
+
+	/* lock this object */
+	mutex_lock(&dev->lock);
+
+	/* verify that the device wasn't unplugged */
+	if (!dev->present) {
+		mutex_unlock(&dev->lock);
+		return -ENODEV;
+	}
+
+	result = simple_read_from_buffer(buffer, count, ppos,
+					dev->bulk_in_buffer, IMGSIZE);
+	/* unlock the device */
+	mutex_unlock(&dev->lock);
+	return result;
+}
+
+static int idmouse_probe(struct usb_interface *interface,
+				const struct usb_device_id *id)
+{
+	struct usb_device *udev = interface_to_usbdev(interface);
+	struct usb_idmouse *dev;
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	int result;
+
+	/* check if we have gotten the data or the hid interface */
+	iface_desc = interface->cur_altsetting;
+	if (iface_desc->desc.bInterfaceClass != 0x0A)
+		return -ENODEV;
+
+	if (iface_desc->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
+	/* allocate memory for our device state and initialize it */
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (dev == NULL)
+		return -ENOMEM;
+
+	mutex_init(&dev->lock);
+	dev->udev = udev;
+	dev->interface = interface;
+
+	/* set up the endpoint information - use only the first bulk-in endpoint */
+	result = usb_find_bulk_in_endpoint(iface_desc, &endpoint);
+	if (result) {
+		dev_err(&interface->dev, "Unable to find bulk-in endpoint.\n");
+		idmouse_delete(dev);
+		return result;
+	}
+
+	dev->orig_bi_size = usb_endpoint_maxp(endpoint);
+	dev->bulk_in_size = 0x200; /* works _much_ faster */
+	dev->bulk_in_endpointAddr = endpoint->bEndpointAddress;
+	dev->bulk_in_buffer = kmalloc(IMGSIZE + dev->bulk_in_size, GFP_KERNEL);
+	if (!dev->bulk_in_buffer) {
+		idmouse_delete(dev);
+		return -ENOMEM;
+	}
+
+	/* allow device read, write and ioctl */
+	dev->present = 1;
+
+	/* we can register the device now, as it is ready */
+	usb_set_intfdata(interface, dev);
+	result = usb_register_dev(interface, &idmouse_class);
+	if (result) {
+		/* something prevented us from registering this device */
+		dev_err(&interface->dev, "Unable to allocate minor number.\n");
+		idmouse_delete(dev);
+		return result;
+	}
+
+	/* be noisy */
+	dev_info(&interface->dev,"%s now attached\n",DRIVER_DESC);
+
+	return 0;
+}
+
+static void idmouse_disconnect(struct usb_interface *interface)
+{
+	struct usb_idmouse *dev = usb_get_intfdata(interface);
+
+	/* give back our minor */
+	usb_deregister_dev(interface, &idmouse_class);
+
+	/* lock the device */
+	mutex_lock(&dev->lock);
+
+	/* prevent device read, write and ioctl */
+	dev->present = 0;
+
+	/* if the device is opened, idmouse_release will clean this up */
+	if (!dev->open) {
+		mutex_unlock(&dev->lock);
+		idmouse_delete(dev);
+	} else {
+		/* unlock */
+		mutex_unlock(&dev->lock);
+	}
+
+	dev_info(&interface->dev, "disconnected\n");
+}
+
+module_usb_driver(idmouse_driver);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+