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, 214 insertions, 0 deletions

diff --git a/drivers/virt/vboxguest/vboxguest_core.h b/drivers/virt/vboxguest/vboxguest_core.h
new file mode 100644
index 000000000..ab4bf64e2
--- /dev/null
+++ b/drivers/virt/vboxguest/vboxguest_core.h
@@ -0,0 +1,214 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR CDDL-1.0) */
+/* Copyright (C) 2010-2016 Oracle Corporation */
+
+#ifndef __VBOXGUEST_CORE_H__
+#define __VBOXGUEST_CORE_H__
+
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/miscdevice.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/workqueue.h>
+#include <linux/vboxguest.h>
+#include "vmmdev.h"
+
+/*
+ * The mainline kernel version (this version) of the vboxguest module
+ * contained a bug where it defined VBGL_IOCTL_VMMDEV_REQUEST_BIG and
+ * VBGL_IOCTL_LOG using _IOC(_IOC_READ | _IOC_WRITE, 'V', ...) instead
+ * of _IO(V, ...) as the out of tree VirtualBox upstream version does.
+ *
+ * These _ALT definitions keep compatibility with the wrong defines the
+ * mainline kernel version used for a while.
+ * Note the VirtualBox userspace bits have always been built against
+ * VirtualBox upstream's headers, so this is likely not necessary. But
+ * we must never break our ABI so we keep these around to be 100% sure.
+ */
+#define VBG_IOCTL_VMMDEV_REQUEST_BIG_ALT _IOC(_IOC_READ | _IOC_WRITE, 'V', 3, 0)
+#define VBG_IOCTL_LOG_ALT(s)             _IOC(_IOC_READ | _IOC_WRITE, 'V', 9, s)
+
+struct vbg_session;
+
+/** VBox guest memory balloon. */
+struct vbg_mem_balloon {
+	/** Work handling VMMDEV_EVENT_BALLOON_CHANGE_REQUEST events */
+	struct work_struct work;
+	/** Pre-allocated vmmdev_memballoon_info req for query */
+	struct vmmdev_memballoon_info *get_req;
+	/** Pre-allocated vmmdev_memballoon_change req for inflate / deflate */
+	struct vmmdev_memballoon_change *change_req;
+	/** The current number of chunks in the balloon. */
+	u32 chunks;
+	/** The maximum number of chunks in the balloon. */
+	u32 max_chunks;
+	/**
+	 * Array of pointers to page arrays. A page * array is allocated for
+	 * each chunk when inflating, and freed when the deflating.
+	 */
+	struct page ***pages;
+};
+
+/**
+ * Per bit usage tracker for a u32 mask.
+ *
+ * Used for optimal handling of guest properties and event filter.
+ */
+struct vbg_bit_usage_tracker {
+	/** Per bit usage counters. */
+	u32 per_bit_usage[32];
+	/** The current mask according to per_bit_usage. */
+	u32 mask;
+};
+
+/** VBox guest device (data) extension. */
+struct vbg_dev {
+	struct device *dev;
+	/** The base of the adapter I/O ports. */
+	u16 io_port;
+	/** Pointer to the mapping of the VMMDev adapter memory. */
+	struct vmmdev_memory *mmio;
+	/** Host version */
+	char host_version[64];
+	/** Host features */
+	unsigned int host_features;
+	/**
+	 * Dummy page and vmap address for reserved kernel virtual-address
+	 * space for the guest mappings, only used on hosts lacking vtx.
+	 */
+	struct page *guest_mappings_dummy_page;
+	void *guest_mappings;
+	/** Spinlock protecting pending_events. */
+	spinlock_t event_spinlock;
+	/** Preallocated struct vmmdev_events for the IRQ handler. */
+	struct vmmdev_events *ack_events_req;
+	/** Wait-for-event list for threads waiting for multiple events. */
+	wait_queue_head_t event_wq;
+	/** Mask of pending events. */
+	u32 pending_events;
+	/** Wait-for-event list for threads waiting on HGCM async completion. */
+	wait_queue_head_t hgcm_wq;
+	/** Pre-allocated hgcm cancel2 req. for cancellation on timeout */
+	struct vmmdev_hgcm_cancel2 *cancel_req;
+	/** Mutex protecting cancel_req accesses */
+	struct mutex cancel_req_mutex;
+	/** Pre-allocated mouse-status request for the input-device handling. */
+	struct vmmdev_mouse_status *mouse_status_req;
+	/** Input device for reporting abs mouse coordinates to the guest. */
+	struct input_dev *input;
+
+	/** Memory balloon information. */
+	struct vbg_mem_balloon mem_balloon;
+
+	/** Lock for session related items in vbg_dev and vbg_session */
+	struct mutex session_mutex;
+	/** Events we won't permit anyone to filter out. */
+	u32 fixed_events;
+	/**
+	 * Usage counters for the host events (excludes fixed events),
+	 * Protected by session_mutex.
+	 */
+	struct vbg_bit_usage_tracker event_filter_tracker;
+	/**
+	 * The event filter last reported to the host (or UINT32_MAX).
+	 * Protected by session_mutex.
+	 */
+	u32 event_filter_host;
+
+	/**
+	 * Guest capabilities which have been switched to acquire_mode.
+	 */
+	u32 acquire_mode_guest_caps;
+	/**
+	 * Guest capabilities acquired by vbg_acquire_session_capabilities().
+	 * Only one session can acquire a capability at a time.
+	 */
+	u32 acquired_guest_caps;
+	/**
+	 * Usage counters for guest capabilities requested through
+	 * vbg_set_session_capabilities(). Indexed by capability bit
+	 * number, one count per session using a capability.
+	 * Protected by session_mutex.
+	 */
+	struct vbg_bit_usage_tracker set_guest_caps_tracker;
+	/**
+	 * The guest capabilities last reported to the host (or UINT32_MAX).
+	 * Protected by session_mutex.
+	 */
+	u32 guest_caps_host;
+
+	/**
+	 * Heartbeat timer which fires with interval
+	 * cNsHearbeatInterval and its handler sends
+	 * VMMDEVREQ_GUEST_HEARTBEAT to VMMDev.
+	 */
+	struct timer_list heartbeat_timer;
+	/** Heartbeat timer interval in ms. */
+	int heartbeat_interval_ms;
+	/** Preallocated VMMDEVREQ_GUEST_HEARTBEAT request. */
+	struct vmmdev_request_header *guest_heartbeat_req;
+
+	/** "vboxguest" char-device */
+	struct miscdevice misc_device;
+	/** "vboxuser" char-device */
+	struct miscdevice misc_device_user;
+};
+
+/** The VBoxGuest per session data. */
+struct vbg_session {
+	/** Pointer to the device extension. */
+	struct vbg_dev *gdev;
+
+	/**
+	 * Array containing HGCM client IDs associated with this session.
+	 * These will be automatically disconnected when the session is closed.
+	 * Protected by vbg_gdev.session_mutex.
+	 */
+	u32 hgcm_client_ids[64];
+	/**
+	 * Host events requested by the session.
+	 * An event type requested in any guest session will be added to the
+	 * host filter. Protected by vbg_gdev.session_mutex.
+	 */
+	u32 event_filter;
+	/**
+	 * Guest capabilities acquired by vbg_acquire_session_capabilities().
+	 * Only one session can acquire a capability at a time.
+	 */
+	u32 acquired_guest_caps;
+	/**
+	 * Guest capabilities set through vbg_set_session_capabilities().
+	 * A capability claimed by any guest session will be reported to the
+	 * host. Protected by vbg_gdev.session_mutex.
+	 */
+	u32 set_guest_caps;
+	/** VMMDEV_REQUESTOR_* flags */
+	u32 requestor;
+	/** Set on CANCEL_ALL_WAITEVENTS, protected by vbg_devevent_spinlock. */
+	bool cancel_waiters;
+};
+
+int  vbg_core_init(struct vbg_dev *gdev, u32 fixed_events);
+void vbg_core_exit(struct vbg_dev *gdev);
+struct vbg_session *vbg_core_open_session(struct vbg_dev *gdev, u32 requestor);
+void vbg_core_close_session(struct vbg_session *session);
+int  vbg_core_ioctl(struct vbg_session *session, unsigned int req, void *data);
+int  vbg_core_set_mouse_status(struct vbg_dev *gdev, u32 features);
+
+irqreturn_t vbg_core_isr(int irq, void *dev_id);
+
+void vbg_linux_mouse_event(struct vbg_dev *gdev);
+
+/* Private (non exported) functions form vboxguest_utils.c */
+void *vbg_req_alloc(size_t len, enum vmmdev_request_type req_type,
+		    u32 requestor);
+void vbg_req_free(void *req, size_t len);
+int vbg_req_perform(struct vbg_dev *gdev, void *req);
+int vbg_hgcm_call32(
+	struct vbg_dev *gdev, u32 requestor, u32 client_id, u32 function,
+	u32 timeout_ms, struct vmmdev_hgcm_function_parameter32 *parm32,
+	u32 parm_count, int *vbox_status);
+
+#endif