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, 651 insertions, 0 deletions

diff --git a/drivers/thunderbolt/tb_msgs.h b/drivers/thunderbolt/tb_msgs.h
new file mode 100644
index 000000000..33c4c7aed
--- /dev/null
+++ b/drivers/thunderbolt/tb_msgs.h
@@ -0,0 +1,651 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Thunderbolt control channel messages
+ *
+ * Copyright (C) 2014 Andreas Noever <andreas.noever@gmail.com>
+ * Copyright (C) 2017, Intel Corporation
+ */
+
+#ifndef _TB_MSGS
+#define _TB_MSGS
+
+#include <linux/types.h>
+#include <linux/uuid.h>
+
+enum tb_cfg_space {
+	TB_CFG_HOPS = 0,
+	TB_CFG_PORT = 1,
+	TB_CFG_SWITCH = 2,
+	TB_CFG_COUNTERS = 3,
+};
+
+enum tb_cfg_error {
+	TB_CFG_ERROR_PORT_NOT_CONNECTED = 0,
+	TB_CFG_ERROR_LINK_ERROR = 1,
+	TB_CFG_ERROR_INVALID_CONFIG_SPACE = 2,
+	TB_CFG_ERROR_NO_SUCH_PORT = 4,
+	TB_CFG_ERROR_ACK_PLUG_EVENT = 7, /* send as reply to TB_CFG_PKG_EVENT */
+	TB_CFG_ERROR_LOOP = 8,
+	TB_CFG_ERROR_HEC_ERROR_DETECTED = 12,
+	TB_CFG_ERROR_FLOW_CONTROL_ERROR = 13,
+	TB_CFG_ERROR_LOCK = 15,
+};
+
+/* common header */
+struct tb_cfg_header {
+	u32 route_hi:22;
+	u32 unknown:10; /* highest order bit is set on replies */
+	u32 route_lo;
+} __packed;
+
+/* additional header for read/write packets */
+struct tb_cfg_address {
+	u32 offset:13; /* in dwords */
+	u32 length:6; /* in dwords */
+	u32 port:6;
+	enum tb_cfg_space space:2;
+	u32 seq:2; /* sequence number  */
+	u32 zero:3;
+} __packed;
+
+/* TB_CFG_PKG_READ, response for TB_CFG_PKG_WRITE */
+struct cfg_read_pkg {
+	struct tb_cfg_header header;
+	struct tb_cfg_address addr;
+} __packed;
+
+/* TB_CFG_PKG_WRITE, response for TB_CFG_PKG_READ */
+struct cfg_write_pkg {
+	struct tb_cfg_header header;
+	struct tb_cfg_address addr;
+	u32 data[64]; /* maximum size, tb_cfg_address.length has 6 bits */
+} __packed;
+
+/* TB_CFG_PKG_ERROR */
+struct cfg_error_pkg {
+	struct tb_cfg_header header;
+	enum tb_cfg_error error:4;
+	u32 zero1:4;
+	u32 port:6;
+	u32 zero2:2; /* Both should be zero, still they are different fields. */
+	u32 zero3:14;
+	u32 pg:2;
+} __packed;
+
+#define TB_CFG_ERROR_PG_HOT_PLUG	0x2
+#define TB_CFG_ERROR_PG_HOT_UNPLUG	0x3
+
+/* TB_CFG_PKG_EVENT */
+struct cfg_event_pkg {
+	struct tb_cfg_header header;
+	u32 port:6;
+	u32 zero:25;
+	bool unplug:1;
+} __packed;
+
+/* TB_CFG_PKG_RESET */
+struct cfg_reset_pkg {
+	struct tb_cfg_header header;
+} __packed;
+
+/* TB_CFG_PKG_PREPARE_TO_SLEEP */
+struct cfg_pts_pkg {
+	struct tb_cfg_header header;
+	u32 data;
+} __packed;
+
+/* ICM messages */
+
+enum icm_pkg_code {
+	ICM_GET_TOPOLOGY = 0x1,
+	ICM_DRIVER_READY = 0x3,
+	ICM_APPROVE_DEVICE = 0x4,
+	ICM_CHALLENGE_DEVICE = 0x5,
+	ICM_ADD_DEVICE_KEY = 0x6,
+	ICM_GET_ROUTE = 0xa,
+	ICM_APPROVE_XDOMAIN = 0x10,
+	ICM_DISCONNECT_XDOMAIN = 0x11,
+	ICM_PREBOOT_ACL = 0x18,
+	ICM_USB4_SWITCH_OP = 0x20,
+};
+
+enum icm_event_code {
+	ICM_EVENT_DEVICE_CONNECTED = 0x3,
+	ICM_EVENT_DEVICE_DISCONNECTED = 0x4,
+	ICM_EVENT_XDOMAIN_CONNECTED = 0x6,
+	ICM_EVENT_XDOMAIN_DISCONNECTED = 0x7,
+	ICM_EVENT_RTD3_VETO = 0xa,
+};
+
+struct icm_pkg_header {
+	u8 code;
+	u8 flags;
+	u8 packet_id;
+	u8 total_packets;
+};
+
+#define ICM_FLAGS_ERROR			BIT(0)
+#define ICM_FLAGS_NO_KEY		BIT(1)
+#define ICM_FLAGS_SLEVEL_SHIFT		3
+#define ICM_FLAGS_SLEVEL_MASK		GENMASK(4, 3)
+#define ICM_FLAGS_DUAL_LANE		BIT(5)
+#define ICM_FLAGS_SPEED_GEN3		BIT(7)
+#define ICM_FLAGS_WRITE			BIT(7)
+
+struct icm_pkg_driver_ready {
+	struct icm_pkg_header hdr;
+};
+
+/* Falcon Ridge only messages */
+
+struct icm_fr_pkg_driver_ready_response {
+	struct icm_pkg_header hdr;
+	u8 romver;
+	u8 ramver;
+	u16 security_level;
+};
+
+#define ICM_FR_SLEVEL_MASK		0xf
+
+/* Falcon Ridge & Alpine Ridge common messages */
+
+struct icm_fr_pkg_get_topology {
+	struct icm_pkg_header hdr;
+};
+
+#define ICM_GET_TOPOLOGY_PACKETS	14
+
+struct icm_fr_pkg_get_topology_response {
+	struct icm_pkg_header hdr;
+	u32 route_lo;
+	u32 route_hi;
+	u8 first_data;
+	u8 second_data;
+	u8 drom_i2c_address_index;
+	u8 switch_index;
+	u32 reserved[2];
+	u32 ports[16];
+	u32 port_hop_info[16];
+};
+
+#define ICM_SWITCH_USED			BIT(0)
+#define ICM_SWITCH_UPSTREAM_PORT_MASK	GENMASK(7, 1)
+#define ICM_SWITCH_UPSTREAM_PORT_SHIFT	1
+
+#define ICM_PORT_TYPE_MASK		GENMASK(23, 0)
+#define ICM_PORT_INDEX_SHIFT		24
+#define ICM_PORT_INDEX_MASK		GENMASK(31, 24)
+
+struct icm_fr_event_device_connected {
+	struct icm_pkg_header hdr;
+	uuid_t ep_uuid;
+	u8 connection_key;
+	u8 connection_id;
+	u16 link_info;
+	u32 ep_name[55];
+};
+
+#define ICM_LINK_INFO_LINK_MASK		0x7
+#define ICM_LINK_INFO_DEPTH_SHIFT	4
+#define ICM_LINK_INFO_DEPTH_MASK	GENMASK(7, 4)
+#define ICM_LINK_INFO_APPROVED		BIT(8)
+#define ICM_LINK_INFO_REJECTED		BIT(9)
+#define ICM_LINK_INFO_BOOT		BIT(10)
+
+struct icm_fr_pkg_approve_device {
+	struct icm_pkg_header hdr;
+	uuid_t ep_uuid;
+	u8 connection_key;
+	u8 connection_id;
+	u16 reserved;
+};
+
+struct icm_fr_event_device_disconnected {
+	struct icm_pkg_header hdr;
+	u16 reserved;
+	u16 link_info;
+};
+
+struct icm_fr_event_xdomain_connected {
+	struct icm_pkg_header hdr;
+	u16 reserved;
+	u16 link_info;
+	uuid_t remote_uuid;
+	uuid_t local_uuid;
+	u32 local_route_hi;
+	u32 local_route_lo;
+	u32 remote_route_hi;
+	u32 remote_route_lo;
+};
+
+struct icm_fr_event_xdomain_disconnected {
+	struct icm_pkg_header hdr;
+	u16 reserved;
+	u16 link_info;
+	uuid_t remote_uuid;
+};
+
+struct icm_fr_pkg_add_device_key {
+	struct icm_pkg_header hdr;
+	uuid_t ep_uuid;
+	u8 connection_key;
+	u8 connection_id;
+	u16 reserved;
+	u32 key[8];
+};
+
+struct icm_fr_pkg_add_device_key_response {
+	struct icm_pkg_header hdr;
+	uuid_t ep_uuid;
+	u8 connection_key;
+	u8 connection_id;
+	u16 reserved;
+};
+
+struct icm_fr_pkg_challenge_device {
+	struct icm_pkg_header hdr;
+	uuid_t ep_uuid;
+	u8 connection_key;
+	u8 connection_id;
+	u16 reserved;
+	u32 challenge[8];
+};
+
+struct icm_fr_pkg_challenge_device_response {
+	struct icm_pkg_header hdr;
+	uuid_t ep_uuid;
+	u8 connection_key;
+	u8 connection_id;
+	u16 reserved;
+	u32 challenge[8];
+	u32 response[8];
+};
+
+struct icm_fr_pkg_approve_xdomain {
+	struct icm_pkg_header hdr;
+	u16 reserved;
+	u16 link_info;
+	uuid_t remote_uuid;
+	u16 transmit_path;
+	u16 transmit_ring;
+	u16 receive_path;
+	u16 receive_ring;
+};
+
+struct icm_fr_pkg_approve_xdomain_response {
+	struct icm_pkg_header hdr;
+	u16 reserved;
+	u16 link_info;
+	uuid_t remote_uuid;
+	u16 transmit_path;
+	u16 transmit_ring;
+	u16 receive_path;
+	u16 receive_ring;
+};
+
+/* Alpine Ridge only messages */
+
+struct icm_ar_pkg_driver_ready_response {
+	struct icm_pkg_header hdr;
+	u8 romver;
+	u8 ramver;
+	u16 info;
+};
+
+#define ICM_AR_FLAGS_RTD3		BIT(6)
+
+#define ICM_AR_INFO_SLEVEL_MASK		GENMASK(3, 0)
+#define ICM_AR_INFO_BOOT_ACL_SHIFT	7
+#define ICM_AR_INFO_BOOT_ACL_MASK	GENMASK(11, 7)
+#define ICM_AR_INFO_BOOT_ACL_SUPPORTED	BIT(13)
+
+struct icm_ar_pkg_get_route {
+	struct icm_pkg_header hdr;
+	u16 reserved;
+	u16 link_info;
+};
+
+struct icm_ar_pkg_get_route_response {
+	struct icm_pkg_header hdr;
+	u16 reserved;
+	u16 link_info;
+	u32 route_hi;
+	u32 route_lo;
+};
+
+struct icm_ar_boot_acl_entry {
+	u32 uuid_lo;
+	u32 uuid_hi;
+};
+
+#define ICM_AR_PREBOOT_ACL_ENTRIES	16
+
+struct icm_ar_pkg_preboot_acl {
+	struct icm_pkg_header hdr;
+	struct icm_ar_boot_acl_entry acl[ICM_AR_PREBOOT_ACL_ENTRIES];
+};
+
+struct icm_ar_pkg_preboot_acl_response {
+	struct icm_pkg_header hdr;
+	struct icm_ar_boot_acl_entry acl[ICM_AR_PREBOOT_ACL_ENTRIES];
+};
+
+/* Titan Ridge messages */
+
+struct icm_tr_pkg_driver_ready_response {
+	struct icm_pkg_header hdr;
+	u16 reserved1;
+	u16 info;
+	u32 nvm_version;
+	u16 device_id;
+	u16 reserved2;
+};
+
+#define ICM_TR_FLAGS_RTD3		BIT(6)
+
+#define ICM_TR_INFO_SLEVEL_MASK		GENMASK(2, 0)
+#define ICM_TR_INFO_PROTO_VERSION_MASK	GENMASK(6, 4)
+#define ICM_TR_INFO_PROTO_VERSION_SHIFT	4
+#define ICM_TR_INFO_BOOT_ACL_SHIFT	7
+#define ICM_TR_INFO_BOOT_ACL_MASK	GENMASK(12, 7)
+
+struct icm_tr_event_device_connected {
+	struct icm_pkg_header hdr;
+	uuid_t ep_uuid;
+	u32 route_hi;
+	u32 route_lo;
+	u8 connection_id;
+	u8 reserved;
+	u16 link_info;
+	u32 ep_name[55];
+};
+
+struct icm_tr_event_device_disconnected {
+	struct icm_pkg_header hdr;
+	u32 route_hi;
+	u32 route_lo;
+};
+
+struct icm_tr_event_xdomain_connected {
+	struct icm_pkg_header hdr;
+	u16 reserved;
+	u16 link_info;
+	uuid_t remote_uuid;
+	uuid_t local_uuid;
+	u32 local_route_hi;
+	u32 local_route_lo;
+	u32 remote_route_hi;
+	u32 remote_route_lo;
+};
+
+struct icm_tr_event_xdomain_disconnected {
+	struct icm_pkg_header hdr;
+	u32 route_hi;
+	u32 route_lo;
+	uuid_t remote_uuid;
+};
+
+struct icm_tr_pkg_approve_device {
+	struct icm_pkg_header hdr;
+	uuid_t ep_uuid;
+	u32 route_hi;
+	u32 route_lo;
+	u8 connection_id;
+	u8 reserved1[3];
+};
+
+struct icm_tr_pkg_add_device_key {
+	struct icm_pkg_header hdr;
+	uuid_t ep_uuid;
+	u32 route_hi;
+	u32 route_lo;
+	u8 connection_id;
+	u8 reserved[3];
+	u32 key[8];
+};
+
+struct icm_tr_pkg_challenge_device {
+	struct icm_pkg_header hdr;
+	uuid_t ep_uuid;
+	u32 route_hi;
+	u32 route_lo;
+	u8 connection_id;
+	u8 reserved[3];
+	u32 challenge[8];
+};
+
+struct icm_tr_pkg_approve_xdomain {
+	struct icm_pkg_header hdr;
+	u32 route_hi;
+	u32 route_lo;
+	uuid_t remote_uuid;
+	u16 transmit_path;
+	u16 transmit_ring;
+	u16 receive_path;
+	u16 receive_ring;
+};
+
+struct icm_tr_pkg_disconnect_xdomain {
+	struct icm_pkg_header hdr;
+	u8 stage;
+	u8 reserved[3];
+	u32 route_hi;
+	u32 route_lo;
+	uuid_t remote_uuid;
+};
+
+struct icm_tr_pkg_challenge_device_response {
+	struct icm_pkg_header hdr;
+	uuid_t ep_uuid;
+	u32 route_hi;
+	u32 route_lo;
+	u8 connection_id;
+	u8 reserved[3];
+	u32 challenge[8];
+	u32 response[8];
+};
+
+struct icm_tr_pkg_add_device_key_response {
+	struct icm_pkg_header hdr;
+	uuid_t ep_uuid;
+	u32 route_hi;
+	u32 route_lo;
+	u8 connection_id;
+	u8 reserved[3];
+};
+
+struct icm_tr_pkg_approve_xdomain_response {
+	struct icm_pkg_header hdr;
+	u32 route_hi;
+	u32 route_lo;
+	uuid_t remote_uuid;
+	u16 transmit_path;
+	u16 transmit_ring;
+	u16 receive_path;
+	u16 receive_ring;
+};
+
+struct icm_tr_pkg_disconnect_xdomain_response {
+	struct icm_pkg_header hdr;
+	u8 stage;
+	u8 reserved[3];
+	u32 route_hi;
+	u32 route_lo;
+	uuid_t remote_uuid;
+};
+
+/* Ice Lake messages */
+
+struct icm_icl_event_rtd3_veto {
+	struct icm_pkg_header hdr;
+	u32 veto_reason;
+};
+
+/* USB4 ICM messages */
+
+struct icm_usb4_switch_op {
+	struct icm_pkg_header hdr;
+	u32 route_hi;
+	u32 route_lo;
+	u32 metadata;
+	u16 opcode;
+	u16 data_len_valid;
+	u32 data[16];
+};
+
+#define ICM_USB4_SWITCH_DATA_LEN_MASK	GENMASK(3, 0)
+#define ICM_USB4_SWITCH_DATA_VALID	BIT(4)
+
+struct icm_usb4_switch_op_response {
+	struct icm_pkg_header hdr;
+	u32 route_hi;
+	u32 route_lo;
+	u32 metadata;
+	u16 opcode;
+	u16 status;
+	u32 data[16];
+};
+
+/* XDomain messages */
+
+struct tb_xdomain_header {
+	u32 route_hi;
+	u32 route_lo;
+	u32 length_sn;
+};
+
+#define TB_XDOMAIN_LENGTH_MASK	GENMASK(5, 0)
+#define TB_XDOMAIN_SN_MASK	GENMASK(28, 27)
+#define TB_XDOMAIN_SN_SHIFT	27
+
+enum tb_xdp_type {
+	UUID_REQUEST_OLD = 1,
+	UUID_RESPONSE = 2,
+	PROPERTIES_REQUEST,
+	PROPERTIES_RESPONSE,
+	PROPERTIES_CHANGED_REQUEST,
+	PROPERTIES_CHANGED_RESPONSE,
+	ERROR_RESPONSE,
+	UUID_REQUEST = 12,
+	LINK_STATE_STATUS_REQUEST = 15,
+	LINK_STATE_STATUS_RESPONSE,
+	LINK_STATE_CHANGE_REQUEST,
+	LINK_STATE_CHANGE_RESPONSE,
+};
+
+struct tb_xdp_header {
+	struct tb_xdomain_header xd_hdr;
+	uuid_t uuid;
+	u32 type;
+};
+
+struct tb_xdp_error_response {
+	struct tb_xdp_header hdr;
+	u32 error;
+};
+
+struct tb_xdp_link_state_status {
+	struct tb_xdp_header hdr;
+};
+
+struct tb_xdp_link_state_status_response {
+	union {
+		struct tb_xdp_error_response err;
+		struct {
+			struct tb_xdp_header hdr;
+			u32 status;
+			u8 slw;
+			u8 tlw;
+			u8 sls;
+			u8 tls;
+		};
+	};
+};
+
+struct tb_xdp_link_state_change {
+	struct tb_xdp_header hdr;
+	u8 tlw;
+	u8 tls;
+	u16 reserved;
+};
+
+struct tb_xdp_link_state_change_response {
+	union {
+		struct tb_xdp_error_response err;
+		struct {
+			struct tb_xdp_header hdr;
+			u32 status;
+		};
+	};
+};
+
+struct tb_xdp_uuid {
+	struct tb_xdp_header hdr;
+};
+
+struct tb_xdp_uuid_response {
+	union {
+		struct tb_xdp_error_response err;
+		struct {
+			struct tb_xdp_header hdr;
+			uuid_t src_uuid;
+			u32 src_route_hi;
+			u32 src_route_lo;
+		};
+	};
+};
+
+struct tb_xdp_properties {
+	struct tb_xdp_header hdr;
+	uuid_t src_uuid;
+	uuid_t dst_uuid;
+	u16 offset;
+	u16 reserved;
+};
+
+struct tb_xdp_properties_response {
+	union {
+		struct tb_xdp_error_response err;
+		struct {
+			struct tb_xdp_header hdr;
+			uuid_t src_uuid;
+			uuid_t dst_uuid;
+			u16 offset;
+			u16 data_length;
+			u32 generation;
+			u32 data[];
+		};
+	};
+};
+
+/*
+ * Max length of data array single XDomain property response is allowed
+ * to carry.
+ */
+#define TB_XDP_PROPERTIES_MAX_DATA_LENGTH	\
+	(((256 - 4 - sizeof(struct tb_xdp_properties_response))) / 4)
+
+/* Maximum size of the total property block in dwords we allow */
+#define TB_XDP_PROPERTIES_MAX_LENGTH		500
+
+struct tb_xdp_properties_changed {
+	struct tb_xdp_header hdr;
+	uuid_t src_uuid;
+};
+
+struct tb_xdp_properties_changed_response {
+	union {
+		struct tb_xdp_error_response err;
+		struct tb_xdp_header hdr;
+	};
+};
+
+enum tb_xdp_error {
+	ERROR_SUCCESS,
+	ERROR_UNKNOWN_PACKET,
+	ERROR_UNKNOWN_DOMAIN,
+	ERROR_NOT_SUPPORTED,
+	ERROR_NOT_READY,
+};
+
+#endif