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, 278 insertions, 0 deletions

diff --git a/drivers/platform/x86/dell/dell-smbios-wmi.c b/drivers/platform/x86/dell/dell-smbios-wmi.c
new file mode 100644
index 000000000..931cc5013
--- /dev/null
+++ b/drivers/platform/x86/dell/dell-smbios-wmi.c
@@ -0,0 +1,278 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  WMI methods for use with dell-smbios
+ *
+ *  Copyright (c) 2017 Dell Inc.
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/dmi.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/uaccess.h>
+#include <linux/wmi.h>
+#include "dell-smbios.h"
+#include "dell-wmi-descriptor.h"
+
+static DEFINE_MUTEX(call_mutex);
+static DEFINE_MUTEX(list_mutex);
+static int wmi_supported;
+
+struct misc_bios_flags_structure {
+	struct dmi_header header;
+	u16 flags0;
+} __packed;
+#define FLAG_HAS_ACPI_WMI 0x02
+
+#define DELL_WMI_SMBIOS_GUID "A80593CE-A997-11DA-B012-B622A1EF5492"
+
+struct wmi_smbios_priv {
+	struct dell_wmi_smbios_buffer *buf;
+	struct list_head list;
+	struct wmi_device *wdev;
+	struct device *child;
+	u32 req_buf_size;
+};
+static LIST_HEAD(wmi_list);
+
+static inline struct wmi_smbios_priv *get_first_smbios_priv(void)
+{
+	return list_first_entry_or_null(&wmi_list,
+					struct wmi_smbios_priv,
+					list);
+}
+
+static int run_smbios_call(struct wmi_device *wdev)
+{
+	struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
+	struct wmi_smbios_priv *priv;
+	struct acpi_buffer input;
+	union acpi_object *obj;
+	acpi_status status;
+
+	priv = dev_get_drvdata(&wdev->dev);
+	input.length = priv->req_buf_size - sizeof(u64);
+	input.pointer = &priv->buf->std;
+
+	dev_dbg(&wdev->dev, "evaluating: %u/%u [%x,%x,%x,%x]\n",
+		priv->buf->std.cmd_class, priv->buf->std.cmd_select,
+		priv->buf->std.input[0], priv->buf->std.input[1],
+		priv->buf->std.input[2], priv->buf->std.input[3]);
+
+	status = wmidev_evaluate_method(wdev, 0, 1, &input, &output);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+	obj = (union acpi_object *)output.pointer;
+	if (obj->type != ACPI_TYPE_BUFFER) {
+		dev_dbg(&wdev->dev, "received type: %d\n", obj->type);
+		if (obj->type == ACPI_TYPE_INTEGER)
+			dev_dbg(&wdev->dev, "SMBIOS call failed: %llu\n",
+				obj->integer.value);
+		kfree(output.pointer);
+		return -EIO;
+	}
+	memcpy(input.pointer, obj->buffer.pointer, obj->buffer.length);
+	dev_dbg(&wdev->dev, "result: [%08x,%08x,%08x,%08x]\n",
+		priv->buf->std.output[0], priv->buf->std.output[1],
+		priv->buf->std.output[2], priv->buf->std.output[3]);
+	kfree(output.pointer);
+
+	return 0;
+}
+
+static int dell_smbios_wmi_call(struct calling_interface_buffer *buffer)
+{
+	struct wmi_smbios_priv *priv;
+	size_t difference;
+	size_t size;
+	int ret;
+
+	mutex_lock(&call_mutex);
+	priv = get_first_smbios_priv();
+	if (!priv) {
+		ret = -ENODEV;
+		goto out_wmi_call;
+	}
+
+	size = sizeof(struct calling_interface_buffer);
+	difference = priv->req_buf_size - sizeof(u64) - size;
+
+	memset(&priv->buf->ext, 0, difference);
+	memcpy(&priv->buf->std, buffer, size);
+	ret = run_smbios_call(priv->wdev);
+	memcpy(buffer, &priv->buf->std, size);
+out_wmi_call:
+	mutex_unlock(&call_mutex);
+
+	return ret;
+}
+
+static long dell_smbios_wmi_filter(struct wmi_device *wdev, unsigned int cmd,
+				   struct wmi_ioctl_buffer *arg)
+{
+	struct wmi_smbios_priv *priv;
+	int ret = 0;
+
+	switch (cmd) {
+	case DELL_WMI_SMBIOS_CMD:
+		mutex_lock(&call_mutex);
+		priv = dev_get_drvdata(&wdev->dev);
+		if (!priv) {
+			ret = -ENODEV;
+			goto fail_smbios_cmd;
+		}
+		memcpy(priv->buf, arg, priv->req_buf_size);
+		if (dell_smbios_call_filter(&wdev->dev, &priv->buf->std)) {
+			dev_err(&wdev->dev, "Invalid call %d/%d:%8x\n",
+				priv->buf->std.cmd_class,
+				priv->buf->std.cmd_select,
+				priv->buf->std.input[0]);
+			ret = -EFAULT;
+			goto fail_smbios_cmd;
+		}
+		ret = run_smbios_call(priv->wdev);
+		if (ret)
+			goto fail_smbios_cmd;
+		memcpy(arg, priv->buf, priv->req_buf_size);
+fail_smbios_cmd:
+		mutex_unlock(&call_mutex);
+		break;
+	default:
+		ret = -ENOIOCTLCMD;
+	}
+	return ret;
+}
+
+static int dell_smbios_wmi_probe(struct wmi_device *wdev, const void *context)
+{
+	struct wmi_driver *wdriver =
+		container_of(wdev->dev.driver, struct wmi_driver, driver);
+	struct wmi_smbios_priv *priv;
+	u32 hotfix;
+	int count;
+	int ret;
+
+	ret = dell_wmi_get_descriptor_valid();
+	if (ret)
+		return ret;
+
+	priv = devm_kzalloc(&wdev->dev, sizeof(struct wmi_smbios_priv),
+			    GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	/* WMI buffer size will be either 4k or 32k depending on machine */
+	if (!dell_wmi_get_size(&priv->req_buf_size))
+		return -EPROBE_DEFER;
+
+	/* some SMBIOS calls fail unless BIOS contains hotfix */
+	if (!dell_wmi_get_hotfix(&hotfix))
+		return -EPROBE_DEFER;
+	if (!hotfix) {
+		dev_warn(&wdev->dev,
+			"WMI SMBIOS userspace interface not supported(%u), try upgrading to a newer BIOS\n",
+			hotfix);
+		wdriver->filter_callback = NULL;
+	}
+
+	/* add in the length object we will use internally with ioctl */
+	priv->req_buf_size += sizeof(u64);
+	ret = set_required_buffer_size(wdev, priv->req_buf_size);
+	if (ret)
+		return ret;
+
+	count = get_order(priv->req_buf_size);
+	priv->buf = (void *)__get_free_pages(GFP_KERNEL, count);
+	if (!priv->buf)
+		return -ENOMEM;
+
+	/* ID is used by dell-smbios to set priority of drivers */
+	wdev->dev.id = 1;
+	ret = dell_smbios_register_device(&wdev->dev, &dell_smbios_wmi_call);
+	if (ret)
+		goto fail_register;
+
+	priv->wdev = wdev;
+	dev_set_drvdata(&wdev->dev, priv);
+	mutex_lock(&list_mutex);
+	list_add_tail(&priv->list, &wmi_list);
+	mutex_unlock(&list_mutex);
+
+	return 0;
+
+fail_register:
+	free_pages((unsigned long)priv->buf, count);
+	return ret;
+}
+
+static void dell_smbios_wmi_remove(struct wmi_device *wdev)
+{
+	struct wmi_smbios_priv *priv = dev_get_drvdata(&wdev->dev);
+	int count;
+
+	mutex_lock(&call_mutex);
+	mutex_lock(&list_mutex);
+	list_del(&priv->list);
+	mutex_unlock(&list_mutex);
+	dell_smbios_unregister_device(&wdev->dev);
+	count = get_order(priv->req_buf_size);
+	free_pages((unsigned long)priv->buf, count);
+	mutex_unlock(&call_mutex);
+}
+
+static const struct wmi_device_id dell_smbios_wmi_id_table[] = {
+	{ .guid_string = DELL_WMI_SMBIOS_GUID },
+	{ },
+};
+
+static void parse_b1_table(const struct dmi_header *dm)
+{
+	struct misc_bios_flags_structure *flags =
+	container_of(dm, struct misc_bios_flags_structure, header);
+
+	/* 4 bytes header, 8 bytes flags */
+	if (dm->length < 12)
+		return;
+	if (dm->handle != 0xb100)
+		return;
+	if ((flags->flags0 & FLAG_HAS_ACPI_WMI))
+		wmi_supported = 1;
+}
+
+static void find_b1(const struct dmi_header *dm, void *dummy)
+{
+	switch (dm->type) {
+	case 0xb1: /* misc bios flags */
+		parse_b1_table(dm);
+		break;
+	}
+}
+
+static struct wmi_driver dell_smbios_wmi_driver = {
+	.driver = {
+		.name = "dell-smbios",
+	},
+	.probe = dell_smbios_wmi_probe,
+	.remove = dell_smbios_wmi_remove,
+	.id_table = dell_smbios_wmi_id_table,
+	.filter_callback = dell_smbios_wmi_filter,
+};
+
+int init_dell_smbios_wmi(void)
+{
+	dmi_walk(find_b1, NULL);
+
+	if (!wmi_supported)
+		return -ENODEV;
+
+	return wmi_driver_register(&dell_smbios_wmi_driver);
+}
+
+void exit_dell_smbios_wmi(void)
+{
+	if (wmi_supported)
+		wmi_driver_unregister(&dell_smbios_wmi_driver);
+}
+
+MODULE_DEVICE_TABLE(wmi, dell_smbios_wmi_id_table);