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, 269 insertions, 0 deletions

diff --git a/drivers/media/rc/igorplugusb.c b/drivers/media/rc/igorplugusb.c
new file mode 100644
index 000000000..1464ef9c5
--- /dev/null
+++ b/drivers/media/rc/igorplugusb.c
@@ -0,0 +1,269 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * IgorPlug-USB IR Receiver
+ *
+ * Copyright (C) 2014 Sean Young <sean@mess.org>
+ *
+ * Supports the standard homebrew IgorPlugUSB receiver with Igor's firmware.
+ * See http://www.cesko.host.sk/IgorPlugUSB/IgorPlug-USB%20(AVR)_eng.htm
+ *
+ * Based on the lirc_igorplugusb.c driver:
+ *	Copyright (C) 2004 Jan M. Hochstein
+ *	<hochstein@algo.informatik.tu-darmstadt.de>
+ */
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/input.h>
+#include <media/rc-core.h>
+
+#define DRIVER_DESC		"IgorPlug-USB IR Receiver"
+#define DRIVER_NAME		"igorplugusb"
+
+#define HEADERLEN		3
+#define BUFLEN			36
+#define MAX_PACKET		(HEADERLEN + BUFLEN)
+
+#define SET_INFRABUFFER_EMPTY	1
+#define GET_INFRACODE		2
+
+
+struct igorplugusb {
+	struct rc_dev *rc;
+	struct device *dev;
+
+	struct urb *urb;
+	struct usb_ctrlrequest request;
+
+	struct timer_list timer;
+
+	u8 *buf_in;
+
+	char phys[64];
+};
+
+static void igorplugusb_cmd(struct igorplugusb *ir, int cmd);
+
+static void igorplugusb_irdata(struct igorplugusb *ir, unsigned len)
+{
+	struct ir_raw_event rawir = {};
+	unsigned i, start, overflow;
+
+	dev_dbg(ir->dev, "irdata: %*ph (len=%u)", len, ir->buf_in, len);
+
+	/*
+	 * If more than 36 pulses and spaces follow each other, the igorplugusb
+	 * overwrites its buffer from the beginning. The overflow value is the
+	 * last offset which was not overwritten. Everything from this offset
+	 * onwards occurred before everything until this offset.
+	 */
+	overflow = ir->buf_in[2];
+	i = start = overflow + HEADERLEN;
+
+	if (start >= len) {
+		dev_err(ir->dev, "receive overflow invalid: %u", overflow);
+	} else {
+		if (overflow > 0) {
+			dev_warn(ir->dev, "receive overflow, at least %u lost",
+								overflow);
+			ir_raw_event_overflow(ir->rc);
+		}
+
+		do {
+			rawir.duration = ir->buf_in[i] * 85;
+			rawir.pulse = i & 1;
+
+			ir_raw_event_store_with_filter(ir->rc, &rawir);
+
+			if (++i == len)
+				i = HEADERLEN;
+		} while (i != start);
+
+		/* add a trailing space */
+		rawir.duration = ir->rc->timeout;
+		rawir.pulse = false;
+		ir_raw_event_store_with_filter(ir->rc, &rawir);
+
+		ir_raw_event_handle(ir->rc);
+	}
+
+	igorplugusb_cmd(ir, SET_INFRABUFFER_EMPTY);
+}
+
+static void igorplugusb_callback(struct urb *urb)
+{
+	struct usb_ctrlrequest *req;
+	struct igorplugusb *ir = urb->context;
+
+	req = (struct usb_ctrlrequest *)urb->setup_packet;
+
+	switch (urb->status) {
+	case 0:
+		if (req->bRequest == GET_INFRACODE &&
+					urb->actual_length > HEADERLEN)
+			igorplugusb_irdata(ir, urb->actual_length);
+		else /* request IR */
+			mod_timer(&ir->timer, jiffies + msecs_to_jiffies(50));
+		break;
+	case -EPROTO:
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		return;
+	default:
+		dev_warn(ir->dev, "Error: urb status = %d\n", urb->status);
+		igorplugusb_cmd(ir, SET_INFRABUFFER_EMPTY);
+		break;
+	}
+}
+
+static void igorplugusb_cmd(struct igorplugusb *ir, int cmd)
+{
+	int ret;
+
+	ir->request.bRequest = cmd;
+	ir->urb->transfer_flags = 0;
+	ret = usb_submit_urb(ir->urb, GFP_ATOMIC);
+	if (ret && ret != -EPERM)
+		dev_err(ir->dev, "submit urb failed: %d", ret);
+}
+
+static void igorplugusb_timer(struct timer_list *t)
+{
+	struct igorplugusb *ir = from_timer(ir, t, timer);
+
+	igorplugusb_cmd(ir, GET_INFRACODE);
+}
+
+static int igorplugusb_probe(struct usb_interface *intf,
+					const struct usb_device_id *id)
+{
+	struct usb_device *udev;
+	struct usb_host_interface *idesc;
+	struct usb_endpoint_descriptor *ep;
+	struct igorplugusb *ir;
+	struct rc_dev *rc;
+	int ret = -ENOMEM;
+
+	udev = interface_to_usbdev(intf);
+	idesc = intf->cur_altsetting;
+
+	if (idesc->desc.bNumEndpoints != 1) {
+		dev_err(&intf->dev, "incorrect number of endpoints");
+		return -ENODEV;
+	}
+
+	ep = &idesc->endpoint[0].desc;
+	if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_control(ep)) {
+		dev_err(&intf->dev, "endpoint incorrect");
+		return -ENODEV;
+	}
+
+	ir = devm_kzalloc(&intf->dev, sizeof(*ir), GFP_KERNEL);
+	if (!ir)
+		return -ENOMEM;
+
+	ir->dev = &intf->dev;
+
+	timer_setup(&ir->timer, igorplugusb_timer, 0);
+
+	ir->request.bRequest = GET_INFRACODE;
+	ir->request.bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
+	ir->request.wLength = cpu_to_le16(MAX_PACKET);
+
+	ir->urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (!ir->urb)
+		goto fail;
+
+	ir->buf_in = kmalloc(MAX_PACKET, GFP_KERNEL);
+	if (!ir->buf_in)
+		goto fail;
+	usb_fill_control_urb(ir->urb, udev,
+		usb_rcvctrlpipe(udev, 0), (uint8_t *)&ir->request,
+		ir->buf_in, MAX_PACKET, igorplugusb_callback, ir);
+
+	usb_make_path(udev, ir->phys, sizeof(ir->phys));
+
+	rc = rc_allocate_device(RC_DRIVER_IR_RAW);
+	if (!rc)
+		goto fail;
+
+	rc->device_name = DRIVER_DESC;
+	rc->input_phys = ir->phys;
+	usb_to_input_id(udev, &rc->input_id);
+	rc->dev.parent = &intf->dev;
+	/*
+	 * This device can only store 36 pulses + spaces, which is not enough
+	 * for the NEC protocol and many others.
+	 */
+	rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER &
+		~(RC_PROTO_BIT_NEC | RC_PROTO_BIT_NECX | RC_PROTO_BIT_NEC32 |
+		  RC_PROTO_BIT_RC6_6A_20 | RC_PROTO_BIT_RC6_6A_24 |
+		  RC_PROTO_BIT_RC6_6A_32 | RC_PROTO_BIT_RC6_MCE |
+		  RC_PROTO_BIT_SONY20 | RC_PROTO_BIT_SANYO);
+
+	rc->priv = ir;
+	rc->driver_name = DRIVER_NAME;
+	rc->map_name = RC_MAP_HAUPPAUGE;
+	rc->timeout = MS_TO_US(100);
+	rc->rx_resolution = 85;
+
+	ir->rc = rc;
+	ret = rc_register_device(rc);
+	if (ret) {
+		dev_err(&intf->dev, "failed to register rc device: %d", ret);
+		goto fail;
+	}
+
+	usb_set_intfdata(intf, ir);
+
+	igorplugusb_cmd(ir, SET_INFRABUFFER_EMPTY);
+
+	return 0;
+fail:
+	usb_poison_urb(ir->urb);
+	del_timer(&ir->timer);
+	usb_unpoison_urb(ir->urb);
+	usb_free_urb(ir->urb);
+	rc_free_device(ir->rc);
+	kfree(ir->buf_in);
+
+	return ret;
+}
+
+static void igorplugusb_disconnect(struct usb_interface *intf)
+{
+	struct igorplugusb *ir = usb_get_intfdata(intf);
+
+	rc_unregister_device(ir->rc);
+	usb_poison_urb(ir->urb);
+	del_timer_sync(&ir->timer);
+	usb_set_intfdata(intf, NULL);
+	usb_unpoison_urb(ir->urb);
+	usb_free_urb(ir->urb);
+	kfree(ir->buf_in);
+}
+
+static const struct usb_device_id igorplugusb_table[] = {
+	/* Igor Plug USB (Atmel's Manufact. ID) */
+	{ USB_DEVICE(0x03eb, 0x0002) },
+	/* Fit PC2 Infrared Adapter */
+	{ USB_DEVICE(0x03eb, 0x21fe) },
+	/* Terminating entry */
+	{ }
+};
+
+static struct usb_driver igorplugusb_driver = {
+	.name =	DRIVER_NAME,
+	.probe = igorplugusb_probe,
+	.disconnect = igorplugusb_disconnect,
+	.id_table = igorplugusb_table
+};
+
+module_usb_driver(igorplugusb_driver);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Sean Young <sean@mess.org>");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(usb, igorplugusb_table);