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, 334 insertions, 0 deletions

diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c
new file mode 100644
index 000000000..533baa850
--- /dev/null
+++ b/drivers/usb/core/usb-acpi.c
@@ -0,0 +1,334 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * USB-ACPI glue code
+ *
+ * Copyright 2012 Red Hat <mjg@redhat.com>
+ */
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/acpi.h>
+#include <linux/pci.h>
+#include <linux/usb/hcd.h>
+
+#include "hub.h"
+
+/**
+ * usb_acpi_power_manageable - check whether usb port has
+ * acpi power resource.
+ * @hdev: USB device belonging to the usb hub
+ * @index: port index based zero
+ *
+ * Return true if the port has acpi power resource and false if no.
+ */
+bool usb_acpi_power_manageable(struct usb_device *hdev, int index)
+{
+	acpi_handle port_handle;
+	int port1 = index + 1;
+
+	port_handle = usb_get_hub_port_acpi_handle(hdev,
+		port1);
+	if (port_handle)
+		return acpi_bus_power_manageable(port_handle);
+	else
+		return false;
+}
+EXPORT_SYMBOL_GPL(usb_acpi_power_manageable);
+
+#define UUID_USB_CONTROLLER_DSM "ce2ee385-00e6-48cb-9f05-2edb927c4899"
+#define USB_DSM_DISABLE_U1_U2_FOR_PORT	5
+
+/**
+ * usb_acpi_port_lpm_incapable - check if lpm should be disabled for a port.
+ * @hdev: USB device belonging to the usb hub
+ * @index: zero based port index
+ *
+ * Some USB3 ports may not support USB3 link power management U1/U2 states
+ * due to different retimer setup. ACPI provides _DSM method which returns 0x01
+ * if U1 and U2 states should be disabled. Evaluate _DSM with:
+ * Arg0: UUID = ce2ee385-00e6-48cb-9f05-2edb927c4899
+ * Arg1: Revision ID = 0
+ * Arg2: Function Index = 5
+ * Arg3: (empty)
+ *
+ * Return 1 if USB3 port is LPM incapable, negative on error, otherwise 0
+ */
+
+int usb_acpi_port_lpm_incapable(struct usb_device *hdev, int index)
+{
+	union acpi_object *obj;
+	acpi_handle port_handle;
+	int port1 = index + 1;
+	guid_t guid;
+	int ret;
+
+	ret = guid_parse(UUID_USB_CONTROLLER_DSM, &guid);
+	if (ret)
+		return ret;
+
+	port_handle = usb_get_hub_port_acpi_handle(hdev, port1);
+	if (!port_handle) {
+		dev_dbg(&hdev->dev, "port-%d no acpi handle\n", port1);
+		return -ENODEV;
+	}
+
+	if (!acpi_check_dsm(port_handle, &guid, 0,
+			    BIT(USB_DSM_DISABLE_U1_U2_FOR_PORT))) {
+		dev_dbg(&hdev->dev, "port-%d no _DSM function %d\n",
+			port1, USB_DSM_DISABLE_U1_U2_FOR_PORT);
+		return -ENODEV;
+	}
+
+	obj = acpi_evaluate_dsm(port_handle, &guid, 0,
+				USB_DSM_DISABLE_U1_U2_FOR_PORT, NULL);
+
+	if (!obj)
+		return -ENODEV;
+
+	if (obj->type != ACPI_TYPE_INTEGER) {
+		dev_dbg(&hdev->dev, "evaluate port-%d _DSM failed\n", port1);
+		ACPI_FREE(obj);
+		return -EINVAL;
+	}
+
+	if (obj->integer.value == 0x01)
+		ret = 1;
+
+	ACPI_FREE(obj);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(usb_acpi_port_lpm_incapable);
+
+/**
+ * usb_acpi_set_power_state - control usb port's power via acpi power
+ * resource
+ * @hdev: USB device belonging to the usb hub
+ * @index: port index based zero
+ * @enable: power state expected to be set
+ *
+ * Notice to use usb_acpi_power_manageable() to check whether the usb port
+ * has acpi power resource before invoking this function.
+ *
+ * Returns 0 on success, else negative errno.
+ */
+int usb_acpi_set_power_state(struct usb_device *hdev, int index, bool enable)
+{
+	struct usb_hub *hub = usb_hub_to_struct_hub(hdev);
+	struct usb_port *port_dev;
+	acpi_handle port_handle;
+	unsigned char state;
+	int port1 = index + 1;
+	int error = -EINVAL;
+
+	if (!hub)
+		return -ENODEV;
+	port_dev = hub->ports[port1 - 1];
+
+	port_handle = (acpi_handle) usb_get_hub_port_acpi_handle(hdev, port1);
+	if (!port_handle)
+		return error;
+
+	if (enable)
+		state = ACPI_STATE_D0;
+	else
+		state = ACPI_STATE_D3_COLD;
+
+	error = acpi_bus_set_power(port_handle, state);
+	if (!error)
+		dev_dbg(&port_dev->dev, "acpi: power was set to %d\n", enable);
+	else
+		dev_dbg(&port_dev->dev, "acpi: power failed to be set\n");
+
+	return error;
+}
+EXPORT_SYMBOL_GPL(usb_acpi_set_power_state);
+
+static enum usb_port_connect_type usb_acpi_get_connect_type(acpi_handle handle,
+		struct acpi_pld_info *pld)
+{
+	enum usb_port_connect_type connect_type = USB_PORT_CONNECT_TYPE_UNKNOWN;
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object *upc = NULL;
+	acpi_status status;
+
+	/*
+	 * According to 9.14 in ACPI Spec 6.2. _PLD indicates whether usb port
+	 * is user visible and _UPC indicates whether it is connectable. If
+	 * the port was visible and connectable, it could be freely connected
+	 * and disconnected with USB devices. If no visible and connectable,
+	 * a usb device is directly hard-wired to the port. If no visible and
+	 * no connectable, the port would be not used.
+	 */
+	status = acpi_evaluate_object(handle, "_UPC", NULL, &buffer);
+	if (ACPI_FAILURE(status))
+		goto out;
+
+	upc = buffer.pointer;
+	if (!upc || (upc->type != ACPI_TYPE_PACKAGE) || upc->package.count != 4)
+		goto out;
+
+	if (upc->package.elements[0].integer.value)
+		if (pld->user_visible)
+			connect_type = USB_PORT_CONNECT_TYPE_HOT_PLUG;
+		else
+			connect_type = USB_PORT_CONNECT_TYPE_HARD_WIRED;
+	else if (!pld->user_visible)
+		connect_type = USB_PORT_NOT_USED;
+out:
+	kfree(upc);
+	return connect_type;
+}
+
+
+/*
+ * Private to usb-acpi, all the core needs to know is that
+ * port_dev->location is non-zero when it has been set by the firmware.
+ */
+#define USB_ACPI_LOCATION_VALID (1 << 31)
+
+static struct acpi_device *
+usb_acpi_get_companion_for_port(struct usb_port *port_dev)
+{
+	struct usb_device *udev;
+	struct acpi_device *adev;
+	acpi_handle *parent_handle;
+	int port1;
+
+	/* Get the struct usb_device point of port's hub */
+	udev = to_usb_device(port_dev->dev.parent->parent);
+
+	/*
+	 * The root hub ports' parent is the root hub. The non-root-hub
+	 * ports' parent is the parent hub port which the hub is
+	 * connected to.
+	 */
+	if (!udev->parent) {
+		adev = ACPI_COMPANION(&udev->dev);
+		port1 = usb_hcd_find_raw_port_number(bus_to_hcd(udev->bus),
+						     port_dev->portnum);
+	} else {
+		parent_handle = usb_get_hub_port_acpi_handle(udev->parent,
+							     udev->portnum);
+		if (!parent_handle)
+			return NULL;
+
+		adev = acpi_fetch_acpi_dev(parent_handle);
+		port1 = port_dev->portnum;
+	}
+
+	return acpi_find_child_by_adr(adev, port1);
+}
+
+static struct acpi_device *
+usb_acpi_find_companion_for_port(struct usb_port *port_dev)
+{
+	struct acpi_device *adev;
+	struct acpi_pld_info *pld;
+	acpi_handle *handle;
+	acpi_status status;
+
+	adev = usb_acpi_get_companion_for_port(port_dev);
+	if (!adev)
+		return NULL;
+
+	handle = adev->handle;
+	status = acpi_get_physical_device_location(handle, &pld);
+	if (ACPI_SUCCESS(status) && pld) {
+		port_dev->location = USB_ACPI_LOCATION_VALID
+			| pld->group_token << 8 | pld->group_position;
+		port_dev->connect_type = usb_acpi_get_connect_type(handle, pld);
+		ACPI_FREE(pld);
+	}
+
+	return adev;
+}
+
+static struct acpi_device *
+usb_acpi_find_companion_for_device(struct usb_device *udev)
+{
+	struct acpi_device *adev;
+	struct usb_port *port_dev;
+	struct usb_hub *hub;
+
+	if (!udev->parent) {
+		/*
+		 * root hub is only child (_ADR=0) under its parent, the HC.
+		 * sysdev pointer is the HC as seen from firmware.
+		 */
+		adev = ACPI_COMPANION(udev->bus->sysdev);
+		return acpi_find_child_device(adev, 0, false);
+	}
+
+	hub = usb_hub_to_struct_hub(udev->parent);
+	if (!hub)
+		return NULL;
+
+	/*
+	 * This is an embedded USB device connected to a port and such
+	 * devices share port's ACPI companion.
+	 */
+	port_dev = hub->ports[udev->portnum - 1];
+	return usb_acpi_get_companion_for_port(port_dev);
+}
+
+static struct acpi_device *usb_acpi_find_companion(struct device *dev)
+{
+	/*
+	 * The USB hierarchy like following:
+	 *
+	 * Device (EHC1)
+	 *	Device (HUBN)
+	 *		Device (PR01)
+	 *			Device (PR11)
+	 *			Device (PR12)
+	 *				Device (FN12)
+	 *				Device (FN13)
+	 *			Device (PR13)
+	 *			...
+	 * where HUBN is root hub, and PRNN are USB ports and devices
+	 * connected to them, and FNNN are individualk functions for
+	 * connected composite USB devices. PRNN and FNNN may contain
+	 * _CRS and other methods describing sideband resources for
+	 * the connected device.
+	 *
+	 * On the kernel side both root hub and embedded USB devices are
+	 * represented as instances of usb_device structure, and ports
+	 * are represented as usb_port structures, so the whole process
+	 * is split into 2 parts: finding companions for devices and
+	 * finding companions for ports.
+	 *
+	 * Note that we do not handle individual functions of composite
+	 * devices yet, for that we would need to assign companions to
+	 * devices corresponding to USB interfaces.
+	 */
+	if (is_usb_device(dev))
+		return usb_acpi_find_companion_for_device(to_usb_device(dev));
+	else if (is_usb_port(dev))
+		return usb_acpi_find_companion_for_port(to_usb_port(dev));
+
+	return NULL;
+}
+
+static bool usb_acpi_bus_match(struct device *dev)
+{
+	return is_usb_device(dev) || is_usb_port(dev);
+}
+
+static struct acpi_bus_type usb_acpi_bus = {
+	.name = "USB",
+	.match = usb_acpi_bus_match,
+	.find_companion = usb_acpi_find_companion,
+};
+
+int usb_acpi_register(void)
+{
+	return register_acpi_bus_type(&usb_acpi_bus);
+}
+
+void usb_acpi_unregister(void)
+{
+	unregister_acpi_bus_type(&usb_acpi_bus);
+}