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, 287 insertions, 0 deletions

diff --git a/drivers/platform/surface/surface3-wmi.c b/drivers/platform/surface/surface3-wmi.c
new file mode 100644
index 000000000..ca4602bcc
--- /dev/null
+++ b/drivers/platform/surface/surface3-wmi.c
@@ -0,0 +1,287 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Driver for the LID cover switch of the Surface 3
+ *
+ *  Copyright (c) 2016 Red Hat Inc.
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+#include <linux/input.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+
+MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@redhat.com>");
+MODULE_DESCRIPTION("Surface 3 platform driver");
+MODULE_LICENSE("GPL");
+
+#define ACPI_BUTTON_HID_LID		"PNP0C0D"
+#define SPI_CTL_OBJ_NAME		"SPI"
+#define SPI_TS_OBJ_NAME			"NTRG"
+
+#define SURFACE3_LID_GUID "F7CC25EC-D20B-404C-8903-0ED4359C18AE"
+
+MODULE_ALIAS("wmi:" SURFACE3_LID_GUID);
+
+static const struct dmi_system_id surface3_dmi_table[] = {
+#if defined(CONFIG_X86)
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Surface 3"),
+		},
+	},
+#endif
+	{ }
+};
+
+struct surface3_wmi {
+	struct acpi_device *touchscreen_adev;
+	struct acpi_device *pnp0c0d_adev;
+	struct acpi_hotplug_context hp;
+	struct input_dev *input;
+};
+
+static struct platform_device *s3_wmi_pdev;
+
+static struct surface3_wmi s3_wmi;
+
+static DEFINE_MUTEX(s3_wmi_lock);
+
+static int s3_wmi_query_block(const char *guid, int instance, int *ret)
+{
+	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object *obj = NULL;
+	acpi_status status;
+	int error = 0;
+
+	mutex_lock(&s3_wmi_lock);
+	status = wmi_query_block(guid, instance, &output);
+	if (ACPI_FAILURE(status)) {
+		error = -EIO;
+		goto out_free_unlock;
+	}
+
+	obj = output.pointer;
+
+	if (!obj || obj->type != ACPI_TYPE_INTEGER) {
+		if (obj) {
+			pr_err("query block returned object type: %d - buffer length:%d\n",
+			       obj->type,
+			       obj->type == ACPI_TYPE_BUFFER ?
+						obj->buffer.length : 0);
+		}
+		error = -EINVAL;
+		goto out_free_unlock;
+	}
+	*ret = obj->integer.value;
+ out_free_unlock:
+	kfree(obj);
+	mutex_unlock(&s3_wmi_lock);
+	return error;
+}
+
+static inline int s3_wmi_query_lid(int *ret)
+{
+	return s3_wmi_query_block(SURFACE3_LID_GUID, 0, ret);
+}
+
+static int s3_wmi_send_lid_state(void)
+{
+	int ret, lid_sw;
+
+	ret = s3_wmi_query_lid(&lid_sw);
+	if (ret)
+		return ret;
+
+	input_report_switch(s3_wmi.input, SW_LID, lid_sw);
+	input_sync(s3_wmi.input);
+
+	return 0;
+}
+
+static int s3_wmi_hp_notify(struct acpi_device *adev, u32 value)
+{
+	return s3_wmi_send_lid_state();
+}
+
+static acpi_status s3_wmi_attach_spi_device(acpi_handle handle,
+					    u32 level,
+					    void *data,
+					    void **return_value)
+{
+	struct acpi_device *adev = acpi_fetch_acpi_dev(handle);
+	struct acpi_device **ts_adev = data;
+
+	if (!adev || strncmp(acpi_device_bid(adev), SPI_TS_OBJ_NAME,
+			     strlen(SPI_TS_OBJ_NAME)))
+		return AE_OK;
+
+	if (*ts_adev) {
+		pr_err("duplicate entry %s\n", SPI_TS_OBJ_NAME);
+		return AE_OK;
+	}
+
+	*ts_adev = adev;
+
+	return AE_OK;
+}
+
+static int s3_wmi_check_platform_device(struct device *dev, void *data)
+{
+	struct acpi_device *adev = ACPI_COMPANION(dev);
+	struct acpi_device *ts_adev = NULL;
+	acpi_status status;
+
+	/* ignore non ACPI devices */
+	if (!adev)
+		return 0;
+
+	/* check for LID ACPI switch */
+	if (!strcmp(ACPI_BUTTON_HID_LID, acpi_device_hid(adev))) {
+		s3_wmi.pnp0c0d_adev = adev;
+		return 0;
+	}
+
+	/* ignore non SPI controllers */
+	if (strncmp(acpi_device_bid(adev), SPI_CTL_OBJ_NAME,
+	    strlen(SPI_CTL_OBJ_NAME)))
+		return 0;
+
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, adev->handle, 1,
+				     s3_wmi_attach_spi_device, NULL,
+				     &ts_adev, NULL);
+	if (ACPI_FAILURE(status))
+		dev_warn(dev, "failed to enumerate SPI slaves\n");
+
+	if (!ts_adev)
+		return 0;
+
+	s3_wmi.touchscreen_adev = ts_adev;
+
+	return 0;
+}
+
+static int s3_wmi_create_and_register_input(struct platform_device *pdev)
+{
+	struct input_dev *input;
+	int error;
+
+	input = devm_input_allocate_device(&pdev->dev);
+	if (!input)
+		return -ENOMEM;
+
+	input->name = "Lid Switch";
+	input->phys = "button/input0";
+	input->id.bustype = BUS_HOST;
+	input->id.product = 0x0005;
+
+	input_set_capability(input, EV_SW, SW_LID);
+
+	error = input_register_device(input);
+	if (error)
+		return error;
+
+	s3_wmi.input = input;
+
+	return 0;
+}
+
+static int __init s3_wmi_probe(struct platform_device *pdev)
+{
+	int error;
+
+	if (!dmi_check_system(surface3_dmi_table))
+		return -ENODEV;
+
+	memset(&s3_wmi, 0, sizeof(s3_wmi));
+
+	bus_for_each_dev(&platform_bus_type, NULL, NULL,
+			 s3_wmi_check_platform_device);
+
+	if (!s3_wmi.touchscreen_adev)
+		return -ENODEV;
+
+	acpi_bus_trim(s3_wmi.pnp0c0d_adev);
+
+	error = s3_wmi_create_and_register_input(pdev);
+	if (error)
+		goto restore_acpi_lid;
+
+	acpi_initialize_hp_context(s3_wmi.touchscreen_adev, &s3_wmi.hp,
+				   s3_wmi_hp_notify, NULL);
+
+	s3_wmi_send_lid_state();
+
+	return 0;
+
+ restore_acpi_lid:
+	acpi_bus_scan(s3_wmi.pnp0c0d_adev->handle);
+	return error;
+}
+
+static int s3_wmi_remove(struct platform_device *device)
+{
+	/* remove the hotplug context from the acpi device */
+	s3_wmi.touchscreen_adev->hp = NULL;
+
+	/* reinstall the actual PNPC0C0D LID default handle */
+	acpi_bus_scan(s3_wmi.pnp0c0d_adev->handle);
+	return 0;
+}
+
+static int __maybe_unused s3_wmi_resume(struct device *dev)
+{
+	s3_wmi_send_lid_state();
+	return 0;
+}
+static SIMPLE_DEV_PM_OPS(s3_wmi_pm, NULL, s3_wmi_resume);
+
+static struct platform_driver s3_wmi_driver = {
+	.driver = {
+		.name = "surface3-wmi",
+		.pm = &s3_wmi_pm,
+	},
+	.remove = s3_wmi_remove,
+};
+
+static int __init s3_wmi_init(void)
+{
+	int error;
+
+	s3_wmi_pdev = platform_device_alloc("surface3-wmi", -1);
+	if (!s3_wmi_pdev)
+		return -ENOMEM;
+
+	error = platform_device_add(s3_wmi_pdev);
+	if (error)
+		goto err_device_put;
+
+	error = platform_driver_probe(&s3_wmi_driver, s3_wmi_probe);
+	if (error)
+		goto err_device_del;
+
+	pr_info("Surface 3 WMI Extras loaded\n");
+	return 0;
+
+ err_device_del:
+	platform_device_del(s3_wmi_pdev);
+ err_device_put:
+	platform_device_put(s3_wmi_pdev);
+	return error;
+}
+
+static void __exit s3_wmi_exit(void)
+{
+	platform_device_unregister(s3_wmi_pdev);
+	platform_driver_unregister(&s3_wmi_driver);
+}
+
+module_init(s3_wmi_init);
+module_exit(s3_wmi_exit);