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, 259 insertions, 0 deletions

diff --git a/drivers/usb/misc/cypress_cy7c63.c b/drivers/usb/misc/cypress_cy7c63.c
new file mode 100644
index 000000000..14faec51d
--- /dev/null
+++ b/drivers/usb/misc/cypress_cy7c63.c
@@ -0,0 +1,259 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+* cypress_cy7c63.c
+*
+* Copyright (c) 2006-2007 Oliver Bock (bock@tfh-berlin.de)
+*
+*	This driver is based on the Cypress USB Driver by Marcus Maul
+*	(cyport) and the 2.0 version of Greg Kroah-Hartman's
+*	USB Skeleton driver.
+*
+*	This is a generic driver for the Cypress CY7C63xxx family.
+*	For the time being it enables you to read from and write to
+*	the single I/O ports of the device.
+*
+*	Supported vendors:	AK Modul-Bus Computer GmbH
+*				(Firmware "Port-Chip")
+*
+*	Supported devices:	CY7C63001A-PC
+*				CY7C63001C-PXC
+*				CY7C63001C-SXC
+*
+*	Supported functions:	Read/Write Ports
+*
+*
+*	For up-to-date information please visit:
+*	http://www.obock.de/kernel/cypress
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+
+#define DRIVER_AUTHOR		"Oliver Bock (bock@tfh-berlin.de)"
+#define DRIVER_DESC		"Cypress CY7C63xxx USB driver"
+
+#define CYPRESS_VENDOR_ID	0xa2c
+#define CYPRESS_PRODUCT_ID	0x8
+
+#define CYPRESS_READ_PORT	0x4
+#define CYPRESS_WRITE_PORT	0x5
+
+#define CYPRESS_READ_RAM	0x2
+#define CYPRESS_WRITE_RAM	0x3
+#define CYPRESS_READ_ROM	0x1
+
+#define CYPRESS_READ_PORT_ID0	0
+#define CYPRESS_WRITE_PORT_ID0	0
+#define CYPRESS_READ_PORT_ID1	0x2
+#define CYPRESS_WRITE_PORT_ID1	1
+
+#define CYPRESS_MAX_REQSIZE	8
+
+
+/* table of devices that work with this driver */
+static const struct usb_device_id cypress_table[] = {
+	{ USB_DEVICE(CYPRESS_VENDOR_ID, CYPRESS_PRODUCT_ID) },
+	{ }
+};
+MODULE_DEVICE_TABLE(usb, cypress_table);
+
+/* structure to hold all of our device specific stuff */
+struct cypress {
+	struct usb_device *	udev;
+	unsigned char		port[2];
+};
+
+/* used to send usb control messages to device */
+static int vendor_command(struct cypress *dev, unsigned char request,
+			  unsigned char address, unsigned char data)
+{
+	int retval = 0;
+	unsigned int pipe;
+	unsigned char *iobuf;
+
+	/* allocate some memory for the i/o buffer*/
+	iobuf = kzalloc(CYPRESS_MAX_REQSIZE, GFP_KERNEL);
+	if (!iobuf) {
+		retval = -ENOMEM;
+		goto error;
+	}
+
+	dev_dbg(&dev->udev->dev, "Sending usb_control_msg (data: %d)\n", data);
+
+	/* prepare usb control message and send it upstream */
+	pipe = usb_rcvctrlpipe(dev->udev, 0);
+	retval = usb_control_msg(dev->udev, pipe, request,
+				 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
+				 address, data, iobuf, CYPRESS_MAX_REQSIZE,
+				 USB_CTRL_GET_TIMEOUT);
+
+	/* store returned data (more READs to be added) */
+	switch (request) {
+		case CYPRESS_READ_PORT:
+			if (address == CYPRESS_READ_PORT_ID0) {
+				dev->port[0] = iobuf[1];
+				dev_dbg(&dev->udev->dev,
+					"READ_PORT0 returned: %d\n",
+					dev->port[0]);
+			}
+			else if (address == CYPRESS_READ_PORT_ID1) {
+				dev->port[1] = iobuf[1];
+				dev_dbg(&dev->udev->dev,
+					"READ_PORT1 returned: %d\n",
+					dev->port[1]);
+			}
+			break;
+	}
+
+	kfree(iobuf);
+error:
+	return retval;
+}
+
+/* write port value */
+static ssize_t write_port(struct device *dev, struct device_attribute *attr,
+			  const char *buf, size_t count,
+			  int port_num, int write_id)
+{
+	int value = -1;
+	int result = 0;
+
+	struct usb_interface *intf = to_usb_interface(dev);
+	struct cypress *cyp = usb_get_intfdata(intf);
+
+	dev_dbg(&cyp->udev->dev, "WRITE_PORT%d called\n", port_num);
+
+	/* validate input data */
+	if (sscanf(buf, "%d", &value) < 1) {
+		result = -EINVAL;
+		goto error;
+	}
+	if (value < 0 || value > 255) {
+		result = -EINVAL;
+		goto error;
+	}
+
+	result = vendor_command(cyp, CYPRESS_WRITE_PORT, write_id,
+				(unsigned char)value);
+
+	dev_dbg(&cyp->udev->dev, "Result of vendor_command: %d\n\n", result);
+error:
+	return result < 0 ? result : count;
+}
+
+/* attribute callback handler (write) */
+static ssize_t port0_store(struct device *dev,
+				 struct device_attribute *attr,
+				 const char *buf, size_t count)
+{
+	return write_port(dev, attr, buf, count, 0, CYPRESS_WRITE_PORT_ID0);
+}
+
+/* attribute callback handler (write) */
+static ssize_t port1_store(struct device *dev,
+				 struct device_attribute *attr,
+				 const char *buf, size_t count)
+{
+	return write_port(dev, attr, buf, count, 1, CYPRESS_WRITE_PORT_ID1);
+}
+
+/* read port value */
+static ssize_t read_port(struct device *dev, struct device_attribute *attr,
+			 char *buf, int port_num, int read_id)
+{
+	int result = 0;
+
+	struct usb_interface *intf = to_usb_interface(dev);
+	struct cypress *cyp = usb_get_intfdata(intf);
+
+	dev_dbg(&cyp->udev->dev, "READ_PORT%d called\n", port_num);
+
+	result = vendor_command(cyp, CYPRESS_READ_PORT, read_id, 0);
+
+	dev_dbg(&cyp->udev->dev, "Result of vendor_command: %d\n\n", result);
+
+	return sprintf(buf, "%d", cyp->port[port_num]);
+}
+
+/* attribute callback handler (read) */
+static ssize_t port0_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	return read_port(dev, attr, buf, 0, CYPRESS_READ_PORT_ID0);
+}
+static DEVICE_ATTR_RW(port0);
+
+/* attribute callback handler (read) */
+static ssize_t port1_show(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	return read_port(dev, attr, buf, 1, CYPRESS_READ_PORT_ID1);
+}
+static DEVICE_ATTR_RW(port1);
+
+static struct attribute *cypress_attrs[] = {
+	&dev_attr_port0.attr,
+	&dev_attr_port1.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(cypress);
+
+static int cypress_probe(struct usb_interface *interface,
+			 const struct usb_device_id *id)
+{
+	struct cypress *dev = NULL;
+	int retval = -ENOMEM;
+
+	/* allocate memory for our device state and initialize it */
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		goto error_mem;
+
+	dev->udev = usb_get_dev(interface_to_usbdev(interface));
+
+	/* save our data pointer in this interface device */
+	usb_set_intfdata(interface, dev);
+
+	/* let the user know that the device is now attached */
+	dev_info(&interface->dev,
+		 "Cypress CY7C63xxx device now attached\n");
+	return 0;
+
+error_mem:
+	return retval;
+}
+
+static void cypress_disconnect(struct usb_interface *interface)
+{
+	struct cypress *dev;
+
+	dev = usb_get_intfdata(interface);
+
+	/* the intfdata can be set to NULL only after the
+	 * device files have been removed */
+	usb_set_intfdata(interface, NULL);
+
+	usb_put_dev(dev->udev);
+
+	dev_info(&interface->dev,
+		 "Cypress CY7C63xxx device now disconnected\n");
+
+	kfree(dev);
+}
+
+static struct usb_driver cypress_driver = {
+	.name = "cypress_cy7c63",
+	.probe = cypress_probe,
+	.disconnect = cypress_disconnect,
+	.id_table = cypress_table,
+	.dev_groups = cypress_groups,
+};
+
+module_usb_driver(cypress_driver);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+
+MODULE_LICENSE("GPL");