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, 274 insertions, 0 deletions

diff --git a/drivers/media/rc/rc-loopback.c b/drivers/media/rc/rc-loopback.c
new file mode 100644
index 000000000..b356041c5
--- /dev/null
+++ b/drivers/media/rc/rc-loopback.c
@@ -0,0 +1,274 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Loopback driver for rc-core,
+ *
+ * Copyright (c) 2010 David Härdeman <david@hardeman.nu>
+ *
+ * This driver receives TX data and passes it back as RX data,
+ * which is useful for (scripted) debugging of rc-core without
+ * having to use actual hardware.
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <media/rc-core.h>
+
+#define DRIVER_NAME		"rc-loopback"
+#define RXMASK_NARROWBAND	0x1
+#define RXMASK_WIDEBAND		0x2
+
+struct loopback_dev {
+	struct rc_dev *dev;
+	u32 txmask;
+	u32 txcarrier;
+	u32 txduty;
+	bool idle;
+	bool wideband;
+	bool carrierreport;
+	u32 rxcarriermin;
+	u32 rxcarriermax;
+};
+
+static struct loopback_dev loopdev;
+
+static int loop_set_tx_mask(struct rc_dev *dev, u32 mask)
+{
+	struct loopback_dev *lodev = dev->priv;
+
+	if ((mask & (RXMASK_NARROWBAND | RXMASK_WIDEBAND)) != mask) {
+		dev_dbg(&dev->dev, "invalid tx mask: %u\n", mask);
+		return 2;
+	}
+
+	dev_dbg(&dev->dev, "setting tx mask: %u\n", mask);
+	lodev->txmask = mask;
+	return 0;
+}
+
+static int loop_set_tx_carrier(struct rc_dev *dev, u32 carrier)
+{
+	struct loopback_dev *lodev = dev->priv;
+
+	dev_dbg(&dev->dev, "setting tx carrier: %u\n", carrier);
+	lodev->txcarrier = carrier;
+	return 0;
+}
+
+static int loop_set_tx_duty_cycle(struct rc_dev *dev, u32 duty_cycle)
+{
+	struct loopback_dev *lodev = dev->priv;
+
+	if (duty_cycle < 1 || duty_cycle > 99) {
+		dev_dbg(&dev->dev, "invalid duty cycle: %u\n", duty_cycle);
+		return -EINVAL;
+	}
+
+	dev_dbg(&dev->dev, "setting duty cycle: %u\n", duty_cycle);
+	lodev->txduty = duty_cycle;
+	return 0;
+}
+
+static int loop_set_rx_carrier_range(struct rc_dev *dev, u32 min, u32 max)
+{
+	struct loopback_dev *lodev = dev->priv;
+
+	if (min < 1 || min > max) {
+		dev_dbg(&dev->dev, "invalid rx carrier range %u to %u\n", min, max);
+		return -EINVAL;
+	}
+
+	dev_dbg(&dev->dev, "setting rx carrier range %u to %u\n", min, max);
+	lodev->rxcarriermin = min;
+	lodev->rxcarriermax = max;
+	return 0;
+}
+
+static int loop_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count)
+{
+	struct loopback_dev *lodev = dev->priv;
+	u32 rxmask;
+	unsigned i;
+	struct ir_raw_event rawir = {};
+
+	if (lodev->txcarrier < lodev->rxcarriermin ||
+	    lodev->txcarrier > lodev->rxcarriermax) {
+		dev_dbg(&dev->dev, "ignoring tx, carrier out of range\n");
+		goto out;
+	}
+
+	if (lodev->wideband)
+		rxmask = RXMASK_WIDEBAND;
+	else
+		rxmask = RXMASK_NARROWBAND;
+
+	if (!(rxmask & lodev->txmask)) {
+		dev_dbg(&dev->dev, "ignoring tx, rx mask mismatch\n");
+		goto out;
+	}
+
+	for (i = 0; i < count; i++) {
+		rawir.pulse = i % 2 ? false : true;
+		rawir.duration = txbuf[i];
+
+		/* simulate overflow if ridiculously long pulse was sent */
+		if (rawir.pulse && rawir.duration > MS_TO_US(50))
+			ir_raw_event_overflow(dev);
+		else
+			ir_raw_event_store_with_filter(dev, &rawir);
+	}
+
+	if (lodev->carrierreport) {
+		rawir.pulse = false;
+		rawir.carrier_report = true;
+		rawir.carrier = lodev->txcarrier;
+
+		ir_raw_event_store(dev, &rawir);
+	}
+
+	/* Fake a silence long enough to cause us to go idle */
+	rawir.pulse = false;
+	rawir.duration = dev->timeout;
+	ir_raw_event_store_with_filter(dev, &rawir);
+
+	ir_raw_event_handle(dev);
+
+out:
+	return count;
+}
+
+static void loop_set_idle(struct rc_dev *dev, bool enable)
+{
+	struct loopback_dev *lodev = dev->priv;
+
+	if (lodev->idle != enable) {
+		dev_dbg(&dev->dev, "%sing idle mode\n", enable ? "enter" : "exit");
+		lodev->idle = enable;
+	}
+}
+
+static int loop_set_wideband_receiver(struct rc_dev *dev, int enable)
+{
+	struct loopback_dev *lodev = dev->priv;
+
+	if (lodev->wideband != enable) {
+		dev_dbg(&dev->dev, "using %sband receiver\n", enable ? "wide" : "narrow");
+		lodev->wideband = !!enable;
+	}
+
+	return 0;
+}
+
+static int loop_set_carrier_report(struct rc_dev *dev, int enable)
+{
+	struct loopback_dev *lodev = dev->priv;
+
+	if (lodev->carrierreport != enable) {
+		dev_dbg(&dev->dev, "%sabling carrier reports\n", enable ? "en" : "dis");
+		lodev->carrierreport = !!enable;
+	}
+
+	return 0;
+}
+
+static int loop_set_wakeup_filter(struct rc_dev *dev,
+				  struct rc_scancode_filter *sc)
+{
+	static const unsigned int max = 512;
+	struct ir_raw_event *raw;
+	int ret;
+	int i;
+
+	/* fine to disable filter */
+	if (!sc->mask)
+		return 0;
+
+	/* encode the specified filter and loop it back */
+	raw = kmalloc_array(max, sizeof(*raw), GFP_KERNEL);
+	if (!raw)
+		return -ENOMEM;
+
+	ret = ir_raw_encode_scancode(dev->wakeup_protocol, sc->data, raw, max);
+	/* still loop back the partial raw IR even if it's incomplete */
+	if (ret == -ENOBUFS)
+		ret = max;
+	if (ret >= 0) {
+		/* do the loopback */
+		for (i = 0; i < ret; ++i)
+			ir_raw_event_store(dev, &raw[i]);
+		ir_raw_event_handle(dev);
+
+		ret = 0;
+	}
+
+	kfree(raw);
+
+	return ret;
+}
+
+static int __init loop_init(void)
+{
+	struct rc_dev *rc;
+	int ret;
+
+	rc = rc_allocate_device(RC_DRIVER_IR_RAW);
+	if (!rc)
+		return -ENOMEM;
+
+	rc->device_name		= "rc-core loopback device";
+	rc->input_phys		= "rc-core/virtual";
+	rc->input_id.bustype	= BUS_VIRTUAL;
+	rc->input_id.version	= 1;
+	rc->driver_name		= DRIVER_NAME;
+	rc->map_name		= RC_MAP_EMPTY;
+	rc->priv		= &loopdev;
+	rc->allowed_protocols	= RC_PROTO_BIT_ALL_IR_DECODER;
+	rc->allowed_wakeup_protocols = RC_PROTO_BIT_ALL_IR_ENCODER;
+	rc->encode_wakeup	= true;
+	rc->timeout		= IR_DEFAULT_TIMEOUT;
+	rc->min_timeout		= 1;
+	rc->max_timeout		= IR_MAX_TIMEOUT;
+	rc->rx_resolution	= 1;
+	rc->tx_resolution	= 1;
+	rc->s_tx_mask		= loop_set_tx_mask;
+	rc->s_tx_carrier	= loop_set_tx_carrier;
+	rc->s_tx_duty_cycle	= loop_set_tx_duty_cycle;
+	rc->s_rx_carrier_range	= loop_set_rx_carrier_range;
+	rc->tx_ir		= loop_tx_ir;
+	rc->s_idle		= loop_set_idle;
+	rc->s_wideband_receiver	= loop_set_wideband_receiver;
+	rc->s_carrier_report	= loop_set_carrier_report;
+	rc->s_wakeup_filter	= loop_set_wakeup_filter;
+
+	loopdev.txmask		= RXMASK_NARROWBAND;
+	loopdev.txcarrier	= 36000;
+	loopdev.txduty		= 50;
+	loopdev.rxcarriermin	= 1;
+	loopdev.rxcarriermax	= ~0;
+	loopdev.idle		= true;
+	loopdev.wideband	= false;
+	loopdev.carrierreport	= false;
+
+	ret = rc_register_device(rc);
+	if (ret < 0) {
+		dev_err(&rc->dev, "rc_dev registration failed\n");
+		rc_free_device(rc);
+		return ret;
+	}
+
+	loopdev.dev = rc;
+	return 0;
+}
+
+static void __exit loop_exit(void)
+{
+	rc_unregister_device(loopdev.dev);
+}
+
+module_init(loop_init);
+module_exit(loop_exit);
+
+MODULE_DESCRIPTION("Loopback device for rc-core debugging");
+MODULE_AUTHOR("David Härdeman <david@hardeman.nu>");
+MODULE_LICENSE("GPL");