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, 730 insertions, 0 deletions

diff --git a/drivers/net/ethernet/netronome/nfp/flower/main.h b/drivers/net/ethernet/netronome/nfp/flower/main.h
new file mode 100644
index 000000000..403725451
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/flower/main.h
@@ -0,0 +1,730 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/* Copyright (C) 2017-2018 Netronome Systems, Inc. */
+
+#ifndef __NFP_FLOWER_H__
+#define __NFP_FLOWER_H__ 1
+
+#include "cmsg.h"
+#include "../nfp_net.h"
+
+#include <linux/circ_buf.h>
+#include <linux/hashtable.h>
+#include <linux/rhashtable.h>
+#include <linux/time64.h>
+#include <linux/types.h>
+#include <net/flow_offload.h>
+#include <net/pkt_cls.h>
+#include <net/pkt_sched.h>
+#include <net/tcp.h>
+#include <linux/workqueue.h>
+#include <linux/idr.h>
+
+struct nfp_fl_pre_lag;
+struct net_device;
+struct nfp_app;
+
+#define NFP_FL_STAT_ID_MU_NUM		GENMASK(31, 22)
+#define NFP_FL_STAT_ID_STAT		GENMASK(21, 0)
+
+#define NFP_FL_STATS_ELEM_RS		sizeof_field(struct nfp_fl_stats_id, \
+						     init_unalloc)
+#define NFP_FLOWER_MASK_ENTRY_RS	256
+#define NFP_FLOWER_MASK_ELEMENT_RS	1
+#define NFP_FLOWER_MASK_HASH_BITS	10
+
+#define NFP_FLOWER_KEY_MAX_LW		32
+
+#define NFP_FL_META_FLAG_MANAGE_MASK	BIT(7)
+
+#define NFP_FL_MASK_REUSE_TIME_NS	40000
+#define NFP_FL_MASK_ID_LOCATION		1
+
+/* Extra features bitmap. */
+#define NFP_FL_FEATS_GENEVE		BIT(0)
+#define NFP_FL_NBI_MTU_SETTING		BIT(1)
+#define NFP_FL_FEATS_GENEVE_OPT		BIT(2)
+#define NFP_FL_FEATS_VLAN_PCP		BIT(3)
+#define NFP_FL_FEATS_VF_RLIM		BIT(4)
+#define NFP_FL_FEATS_FLOW_MOD		BIT(5)
+#define NFP_FL_FEATS_PRE_TUN_RULES	BIT(6)
+#define NFP_FL_FEATS_IPV6_TUN		BIT(7)
+#define NFP_FL_FEATS_VLAN_QINQ		BIT(8)
+#define NFP_FL_FEATS_QOS_PPS		BIT(9)
+#define NFP_FL_FEATS_QOS_METER		BIT(10)
+#define NFP_FL_FEATS_DECAP_V2		BIT(11)
+#define NFP_FL_FEATS_TUNNEL_NEIGH_LAG	BIT(12)
+#define NFP_FL_FEATS_HOST_ACK		BIT(31)
+
+#define NFP_FL_ENABLE_FLOW_MERGE	BIT(0)
+#define NFP_FL_ENABLE_LAG		BIT(1)
+
+#define NFP_FL_FEATS_HOST \
+	(NFP_FL_FEATS_GENEVE | \
+	NFP_FL_NBI_MTU_SETTING | \
+	NFP_FL_FEATS_GENEVE_OPT | \
+	NFP_FL_FEATS_VLAN_PCP | \
+	NFP_FL_FEATS_VF_RLIM | \
+	NFP_FL_FEATS_FLOW_MOD | \
+	NFP_FL_FEATS_PRE_TUN_RULES | \
+	NFP_FL_FEATS_IPV6_TUN | \
+	NFP_FL_FEATS_VLAN_QINQ | \
+	NFP_FL_FEATS_QOS_PPS | \
+	NFP_FL_FEATS_QOS_METER | \
+	NFP_FL_FEATS_DECAP_V2 | \
+	NFP_FL_FEATS_TUNNEL_NEIGH_LAG)
+
+struct nfp_fl_mask_id {
+	struct circ_buf mask_id_free_list;
+	ktime_t *last_used;
+	u8 init_unallocated;
+};
+
+struct nfp_fl_stats_id {
+	struct circ_buf free_list;
+	u32 init_unalloc;
+	u8 repeated_em_count;
+};
+
+/**
+ * struct nfp_fl_tunnel_offloads - priv data for tunnel offloads
+ * @offloaded_macs:	Hashtable of the offloaded MAC addresses
+ * @ipv4_off_list:	List of IPv4 addresses to offload
+ * @ipv6_off_list:	List of IPv6 addresses to offload
+ * @ipv4_off_lock:	Lock for the IPv4 address list
+ * @ipv6_off_lock:	Lock for the IPv6 address list
+ * @mac_off_ids:	IDA to manage id assignment for offloaded MACs
+ * @neigh_nb:		Notifier to monitor neighbour state
+ */
+struct nfp_fl_tunnel_offloads {
+	struct rhashtable offloaded_macs;
+	struct list_head ipv4_off_list;
+	struct list_head ipv6_off_list;
+	struct mutex ipv4_off_lock;
+	struct mutex ipv6_off_lock;
+	struct ida mac_off_ids;
+	struct notifier_block neigh_nb;
+};
+
+/**
+ * struct nfp_tun_neigh_lag - lag info
+ * @lag_version:	lag version
+ * @lag_instance:	lag instance
+ */
+struct nfp_tun_neigh_lag {
+	u8 lag_version[3];
+	u8 lag_instance;
+};
+
+/**
+ * struct nfp_tun_neigh - basic neighbour data
+ * @dst_addr:	Destination MAC address
+ * @src_addr:	Source MAC address
+ * @port_id:	NFP port to output packet on - associated with source IPv4
+ */
+struct nfp_tun_neigh {
+	u8 dst_addr[ETH_ALEN];
+	u8 src_addr[ETH_ALEN];
+	__be32 port_id;
+};
+
+/**
+ * struct nfp_tun_neigh_ext - extended neighbour data
+ * @vlan_tpid:	VLAN_TPID match field
+ * @vlan_tci:	VLAN_TCI match field
+ * @host_ctx:	Host context ID to be saved here
+ */
+struct nfp_tun_neigh_ext {
+	__be16 vlan_tpid;
+	__be16 vlan_tci;
+	__be32 host_ctx;
+};
+
+/**
+ * struct nfp_tun_neigh_v4 - neighbour/route entry on the NFP for IPv4
+ * @dst_ipv4:	Destination IPv4 address
+ * @src_ipv4:	Source IPv4 address
+ * @common:	Neighbour/route common info
+ * @ext:	Neighbour/route extended info
+ * @lag:	lag port info
+ */
+struct nfp_tun_neigh_v4 {
+	__be32 dst_ipv4;
+	__be32 src_ipv4;
+	struct nfp_tun_neigh common;
+	struct nfp_tun_neigh_ext ext;
+	struct nfp_tun_neigh_lag lag;
+};
+
+/**
+ * struct nfp_tun_neigh_v6 - neighbour/route entry on the NFP for IPv6
+ * @dst_ipv6:	Destination IPv6 address
+ * @src_ipv6:	Source IPv6 address
+ * @common:	Neighbour/route common info
+ * @ext:	Neighbour/route extended info
+ * @lag:	lag port info
+ */
+struct nfp_tun_neigh_v6 {
+	struct in6_addr dst_ipv6;
+	struct in6_addr src_ipv6;
+	struct nfp_tun_neigh common;
+	struct nfp_tun_neigh_ext ext;
+	struct nfp_tun_neigh_lag lag;
+};
+
+/**
+ * struct nfp_neigh_entry
+ * @neigh_cookie:	Cookie for hashtable lookup
+ * @ht_node:		rhash_head entry for hashtable
+ * @list_head:		Needed as member of linked_nn_entries list
+ * @payload:		The neighbour info payload
+ * @flow:		Linked flow rule
+ * @is_ipv6:		Flag to indicate if payload is ipv6 or ipv4
+ */
+struct nfp_neigh_entry {
+	unsigned long neigh_cookie;
+	struct rhash_head ht_node;
+	struct list_head list_head;
+	char *payload;
+	struct nfp_predt_entry *flow;
+	bool is_ipv6;
+};
+
+/**
+ * struct nfp_predt_entry
+ * @list_head:		List head to attach to predt_list
+ * @flow_pay:		Direct link to flow_payload
+ * @nn_list:		List of linked nfp_neigh_entries
+ */
+struct nfp_predt_entry {
+	struct list_head list_head;
+	struct nfp_fl_payload *flow_pay;
+	struct list_head nn_list;
+};
+
+/**
+ * struct nfp_mtu_conf - manage MTU setting
+ * @portnum:		NFP port number of repr with requested MTU change
+ * @requested_val:	MTU value requested for repr
+ * @ack:		Received ack that MTU has been correctly set
+ * @wait_q:		Wait queue for MTU acknowledgements
+ * @lock:		Lock for setting/reading MTU variables
+ */
+struct nfp_mtu_conf {
+	u32 portnum;
+	unsigned int requested_val;
+	bool ack;
+	wait_queue_head_t wait_q;
+	spinlock_t lock;
+};
+
+/**
+ * struct nfp_fl_lag - Flower APP priv data for link aggregation
+ * @work:		Work queue for writing configs to the HW
+ * @lock:		Lock to protect lag_group_list
+ * @group_list:		List of all master/slave groups offloaded
+ * @ida_handle:		IDA to handle group ids
+ * @pkt_num:		Incremented for each config packet sent
+ * @batch_ver:		Incremented for each batch of config packets
+ * @global_inst:	Instance allocator for groups
+ * @rst_cfg:		Marker to reset HW LAG config
+ * @retrans_skbs:	Cmsgs that could not be processed by HW and require
+ *			retransmission
+ */
+struct nfp_fl_lag {
+	struct delayed_work work;
+	struct mutex lock;
+	struct list_head group_list;
+	struct ida ida_handle;
+	unsigned int pkt_num;
+	unsigned int batch_ver;
+	u8 global_inst;
+	bool rst_cfg;
+	struct sk_buff_head retrans_skbs;
+};
+
+/**
+ * struct nfp_fl_internal_ports - Flower APP priv data for additional ports
+ * @port_ids:	Assignment of ids to any additional ports
+ * @lock:	Lock for extra ports list
+ */
+struct nfp_fl_internal_ports {
+	struct idr port_ids;
+	spinlock_t lock;
+};
+
+/**
+ * struct nfp_flower_priv - Flower APP per-vNIC priv data
+ * @app:		Back pointer to app
+ * @nn:			Pointer to vNIC
+ * @mask_id_seed:	Seed used for mask hash table
+ * @flower_version:	HW version of flower
+ * @flower_ext_feats:	Bitmap of extra features the HW supports
+ * @flower_en_feats:	Bitmap of features enabled by HW
+ * @stats_ids:		List of free stats ids
+ * @mask_ids:		List of free mask ids
+ * @mask_table:		Hash table used to store masks
+ * @stats_ring_size:	Maximum number of allowed stats ids
+ * @flow_table:		Hash table used to store flower rules
+ * @stats:		Stored stats updates for flower rules
+ * @stats_lock:		Lock for flower rule stats updates
+ * @stats_ctx_table:	Hash table to map stats contexts to its flow rule
+ * @cmsg_work:		Workqueue for control messages processing
+ * @cmsg_skbs_high:	List of higher priority skbs for control message
+ *			processing
+ * @cmsg_skbs_low:	List of lower priority skbs for control message
+ *			processing
+ * @tun:		Tunnel offload data
+ * @reify_replies:	atomically stores the number of replies received
+ *			from firmware for repr reify
+ * @reify_wait_queue:	wait queue for repr reify response counting
+ * @mtu_conf:		Configuration of repr MTU value
+ * @nfp_lag:		Link aggregation data block
+ * @indr_block_cb_priv:	List of priv data passed to indirect block cbs
+ * @non_repr_priv:	List of offloaded non-repr ports and their priv data
+ * @active_mem_unit:	Current active memory unit for flower rules
+ * @total_mem_units:	Total number of available memory units for flower rules
+ * @internal_ports:	Internal port ids used in offloaded rules
+ * @qos_stats_work:	Workqueue for qos stats processing
+ * @qos_rate_limiters:	Current active qos rate limiters
+ * @qos_stats_lock:	Lock on qos stats updates
+ * @meter_stats_lock:   Lock on meter stats updates
+ * @meter_table:	Hash table used to store the meter table
+ * @pre_tun_rule_cnt:	Number of pre-tunnel rules offloaded
+ * @merge_table:	Hash table to store merged flows
+ * @ct_zone_table:	Hash table used to store the different zones
+ * @ct_zone_wc:		Special zone entry for wildcarded zone matches
+ * @ct_map_table:	Hash table used to referennce ct flows
+ * @predt_list:		List to keep track of decap pretun flows
+ * @neigh_table:	Table to keep track of neighbor entries
+ * @predt_lock:		Lock to serialise predt/neigh table updates
+ */
+struct nfp_flower_priv {
+	struct nfp_app *app;
+	struct nfp_net *nn;
+	u32 mask_id_seed;
+	u64 flower_version;
+	u64 flower_ext_feats;
+	u8 flower_en_feats;
+	struct nfp_fl_stats_id stats_ids;
+	struct nfp_fl_mask_id mask_ids;
+	DECLARE_HASHTABLE(mask_table, NFP_FLOWER_MASK_HASH_BITS);
+	u32 stats_ring_size;
+	struct rhashtable flow_table;
+	struct nfp_fl_stats *stats;
+	spinlock_t stats_lock; /* lock stats */
+	struct rhashtable stats_ctx_table;
+	struct work_struct cmsg_work;
+	struct sk_buff_head cmsg_skbs_high;
+	struct sk_buff_head cmsg_skbs_low;
+	struct nfp_fl_tunnel_offloads tun;
+	atomic_t reify_replies;
+	wait_queue_head_t reify_wait_queue;
+	struct nfp_mtu_conf mtu_conf;
+	struct nfp_fl_lag nfp_lag;
+	struct list_head indr_block_cb_priv;
+	struct list_head non_repr_priv;
+	unsigned int active_mem_unit;
+	unsigned int total_mem_units;
+	struct nfp_fl_internal_ports internal_ports;
+	struct delayed_work qos_stats_work;
+	unsigned int qos_rate_limiters;
+	spinlock_t qos_stats_lock; /* Protect the qos stats */
+	struct mutex meter_stats_lock; /* Protect the meter stats */
+	struct rhashtable meter_table;
+	int pre_tun_rule_cnt;
+	struct rhashtable merge_table;
+	struct rhashtable ct_zone_table;
+	struct nfp_fl_ct_zone_entry *ct_zone_wc;
+	struct rhashtable ct_map_table;
+	struct list_head predt_list;
+	struct rhashtable neigh_table;
+	spinlock_t predt_lock; /* Lock to serialise predt/neigh table updates */
+};
+
+/**
+ * struct nfp_fl_qos - Flower APP priv data for quality of service
+ * @netdev_port_id:	NFP port number of repr with qos info
+ * @curr_stats:		Currently stored stats updates for qos info
+ * @prev_stats:		Previously stored updates for qos info
+ * @last_update:	Stored time when last stats were updated
+ */
+struct nfp_fl_qos {
+	u32 netdev_port_id;
+	struct nfp_stat_pair curr_stats;
+	struct nfp_stat_pair prev_stats;
+	u64 last_update;
+};
+
+/**
+ * struct nfp_flower_repr_priv - Flower APP per-repr priv data
+ * @nfp_repr:		Back pointer to nfp_repr
+ * @lag_port_flags:	Extended port flags to record lag state of repr
+ * @mac_offloaded:	Flag indicating a MAC address is offloaded for repr
+ * @offloaded_mac_addr:	MAC address that has been offloaded for repr
+ * @block_shared:	Flag indicating if offload applies to shared blocks
+ * @mac_list:		List entry of reprs that share the same offloaded MAC
+ * @qos_table:		Stored info on filters implementing qos
+ * @on_bridge:		Indicates if the repr is attached to a bridge
+ */
+struct nfp_flower_repr_priv {
+	struct nfp_repr *nfp_repr;
+	unsigned long lag_port_flags;
+	bool mac_offloaded;
+	u8 offloaded_mac_addr[ETH_ALEN];
+	bool block_shared;
+	struct list_head mac_list;
+	struct nfp_fl_qos qos_table;
+	bool on_bridge;
+};
+
+/**
+ * struct nfp_flower_non_repr_priv - Priv data for non-repr offloaded ports
+ * @list:		List entry of offloaded reprs
+ * @netdev:		Pointer to non-repr net_device
+ * @ref_count:		Number of references held for this priv data
+ * @mac_offloaded:	Flag indicating a MAC address is offloaded for device
+ * @offloaded_mac_addr:	MAC address that has been offloaded for dev
+ */
+struct nfp_flower_non_repr_priv {
+	struct list_head list;
+	struct net_device *netdev;
+	int ref_count;
+	bool mac_offloaded;
+	u8 offloaded_mac_addr[ETH_ALEN];
+};
+
+struct nfp_fl_key_ls {
+	u32 key_layer_two;
+	u8 key_layer;
+	int key_size;
+};
+
+struct nfp_fl_rule_metadata {
+	u8 key_len;
+	u8 mask_len;
+	u8 act_len;
+	u8 flags;
+	__be32 host_ctx_id;
+	__be64 host_cookie __packed;
+	__be64 flow_version __packed;
+	__be32 shortcut;
+};
+
+struct nfp_fl_stats {
+	u64 pkts;
+	u64 bytes;
+	u64 used;
+};
+
+/**
+ * struct nfp_ipv6_addr_entry - cached IPv6 addresses
+ * @ipv6_addr:	IP address
+ * @ref_count:	number of rules currently using this IP
+ * @list:	list pointer
+ */
+struct nfp_ipv6_addr_entry {
+	struct in6_addr ipv6_addr;
+	int ref_count;
+	struct list_head list;
+};
+
+struct nfp_fl_payload {
+	struct nfp_fl_rule_metadata meta;
+	unsigned long tc_flower_cookie;
+	struct rhash_head fl_node;
+	struct rcu_head rcu;
+	__be32 nfp_tun_ipv4_addr;
+	struct nfp_ipv6_addr_entry *nfp_tun_ipv6;
+	struct net_device *ingress_dev;
+	char *unmasked_data;
+	char *mask_data;
+	char *action_data;
+	struct list_head linked_flows;
+	bool in_hw;
+	struct {
+		struct nfp_predt_entry *predt;
+		struct net_device *dev;
+		__be16 vlan_tpid;
+		__be16 vlan_tci;
+		__be16 port_idx;
+		u8 loc_mac[ETH_ALEN];
+		u8 rem_mac[ETH_ALEN];
+		bool is_ipv6;
+	} pre_tun_rule;
+};
+
+struct nfp_fl_payload_link {
+	/* A link contains a pointer to a merge flow and an associated sub_flow.
+	 * Each merge flow will feature in 2 links to its underlying sub_flows.
+	 * A sub_flow will have at least 1 link to a merge flow or more if it
+	 * has been used to create multiple merge flows.
+	 *
+	 * For a merge flow, 'linked_flows' in its nfp_fl_payload struct lists
+	 * all links to sub_flows (sub_flow.flow) via merge.list.
+	 * For a sub_flow, 'linked_flows' gives all links to merge flows it has
+	 * formed (merge_flow.flow) via sub_flow.list.
+	 */
+	struct {
+		struct list_head list;
+		struct nfp_fl_payload *flow;
+	} merge_flow, sub_flow;
+};
+
+extern const struct rhashtable_params nfp_flower_table_params;
+extern const struct rhashtable_params merge_table_params;
+extern const struct rhashtable_params neigh_table_params;
+
+struct nfp_merge_info {
+	u64 parent_ctx;
+	struct rhash_head ht_node;
+};
+
+struct nfp_fl_stats_frame {
+	__be32 stats_con_id;
+	__be32 pkt_count;
+	__be64 byte_count;
+	__be64 stats_cookie;
+};
+
+struct nfp_meter_stats_entry {
+	u64 pkts;
+	u64 bytes;
+	u64 drops;
+};
+
+struct nfp_meter_entry {
+	struct rhash_head ht_node;
+	u32 meter_id;
+	bool bps;
+	u32 rate;
+	u32 burst;
+	u64 used;
+	struct nfp_meter_stats {
+		u64 update;
+		struct nfp_meter_stats_entry curr;
+		struct nfp_meter_stats_entry prev;
+	} stats;
+};
+
+enum nfp_meter_op {
+	NFP_METER_ADD,
+	NFP_METER_DEL,
+};
+
+static inline bool
+nfp_flower_internal_port_can_offload(struct nfp_app *app,
+				     struct net_device *netdev)
+{
+	struct nfp_flower_priv *app_priv = app->priv;
+
+	if (!(app_priv->flower_en_feats & NFP_FL_ENABLE_FLOW_MERGE))
+		return false;
+	if (!netdev->rtnl_link_ops)
+		return false;
+	if (!strcmp(netdev->rtnl_link_ops->kind, "openvswitch"))
+		return true;
+
+	return false;
+}
+
+/* The address of the merged flow acts as its cookie.
+ * Cookies supplied to us by TC flower are also addresses to allocated
+ * memory and thus this scheme should not generate any collisions.
+ */
+static inline bool nfp_flower_is_merge_flow(struct nfp_fl_payload *flow_pay)
+{
+	return flow_pay->tc_flower_cookie == (unsigned long)flow_pay;
+}
+
+static inline bool nfp_flower_is_supported_bridge(struct net_device *netdev)
+{
+	return netif_is_ovs_master(netdev);
+}
+
+int nfp_flower_metadata_init(struct nfp_app *app, u64 host_ctx_count,
+			     unsigned int host_ctx_split);
+void nfp_flower_metadata_cleanup(struct nfp_app *app);
+
+int nfp_flower_setup_tc(struct nfp_app *app, struct net_device *netdev,
+			enum tc_setup_type type, void *type_data);
+int nfp_flower_merge_offloaded_flows(struct nfp_app *app,
+				     struct nfp_fl_payload *sub_flow1,
+				     struct nfp_fl_payload *sub_flow2);
+void
+nfp_flower_compile_meta(struct nfp_flower_meta_tci *ext,
+			struct nfp_flower_meta_tci *msk, u8 key_type);
+void
+nfp_flower_compile_tci(struct nfp_flower_meta_tci *ext,
+		       struct nfp_flower_meta_tci *msk,
+		       struct flow_rule *rule);
+void
+nfp_flower_compile_ext_meta(struct nfp_flower_ext_meta *frame, u32 key_ext);
+int
+nfp_flower_compile_port(struct nfp_flower_in_port *frame, u32 cmsg_port,
+			bool mask_version, enum nfp_flower_tun_type tun_type,
+			struct netlink_ext_ack *extack);
+void
+nfp_flower_compile_mac(struct nfp_flower_mac_mpls *ext,
+		       struct nfp_flower_mac_mpls *msk,
+		       struct flow_rule *rule);
+int
+nfp_flower_compile_mpls(struct nfp_flower_mac_mpls *ext,
+			struct nfp_flower_mac_mpls *msk,
+			struct flow_rule *rule,
+			struct netlink_ext_ack *extack);
+void
+nfp_flower_compile_tport(struct nfp_flower_tp_ports *ext,
+			 struct nfp_flower_tp_ports *msk,
+			 struct flow_rule *rule);
+void
+nfp_flower_compile_vlan(struct nfp_flower_vlan *ext,
+			struct nfp_flower_vlan *msk,
+			struct flow_rule *rule);
+void
+nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *ext,
+			struct nfp_flower_ipv4 *msk, struct flow_rule *rule);
+void
+nfp_flower_compile_ipv6(struct nfp_flower_ipv6 *ext,
+			struct nfp_flower_ipv6 *msk, struct flow_rule *rule);
+void
+nfp_flower_compile_geneve_opt(u8 *ext, u8 *msk, struct flow_rule *rule);
+void
+nfp_flower_compile_ipv4_gre_tun(struct nfp_flower_ipv4_gre_tun *ext,
+				struct nfp_flower_ipv4_gre_tun *msk,
+				struct flow_rule *rule);
+void
+nfp_flower_compile_ipv4_udp_tun(struct nfp_flower_ipv4_udp_tun *ext,
+				struct nfp_flower_ipv4_udp_tun *msk,
+				struct flow_rule *rule);
+void
+nfp_flower_compile_ipv6_udp_tun(struct nfp_flower_ipv6_udp_tun *ext,
+				struct nfp_flower_ipv6_udp_tun *msk,
+				struct flow_rule *rule);
+void
+nfp_flower_compile_ipv6_gre_tun(struct nfp_flower_ipv6_gre_tun *ext,
+				struct nfp_flower_ipv6_gre_tun *msk,
+				struct flow_rule *rule);
+int nfp_flower_compile_flow_match(struct nfp_app *app,
+				  struct flow_rule *rule,
+				  struct nfp_fl_key_ls *key_ls,
+				  struct net_device *netdev,
+				  struct nfp_fl_payload *nfp_flow,
+				  enum nfp_flower_tun_type tun_type,
+				  struct netlink_ext_ack *extack);
+int nfp_flower_compile_action(struct nfp_app *app,
+			      struct flow_rule *rule,
+			      struct net_device *netdev,
+			      struct nfp_fl_payload *nfp_flow,
+			      struct netlink_ext_ack *extack);
+int nfp_compile_flow_metadata(struct nfp_app *app, u32 cookie,
+			      struct nfp_fl_payload *nfp_flow,
+			      struct net_device *netdev,
+			      struct netlink_ext_ack *extack);
+void __nfp_modify_flow_metadata(struct nfp_flower_priv *priv,
+				struct nfp_fl_payload *nfp_flow);
+int nfp_modify_flow_metadata(struct nfp_app *app,
+			     struct nfp_fl_payload *nfp_flow);
+
+struct nfp_fl_payload *
+nfp_flower_search_fl_table(struct nfp_app *app, unsigned long tc_flower_cookie,
+			   struct net_device *netdev);
+struct nfp_fl_payload *
+nfp_flower_get_fl_payload_from_ctx(struct nfp_app *app, u32 ctx_id);
+struct nfp_fl_payload *
+nfp_flower_remove_fl_table(struct nfp_app *app, unsigned long tc_flower_cookie);
+
+void nfp_flower_rx_flow_stats(struct nfp_app *app, struct sk_buff *skb);
+
+int nfp_tunnel_config_start(struct nfp_app *app);
+void nfp_tunnel_config_stop(struct nfp_app *app);
+int nfp_tunnel_mac_event_handler(struct nfp_app *app,
+				 struct net_device *netdev,
+				 unsigned long event, void *ptr);
+void nfp_tunnel_del_ipv4_off(struct nfp_app *app, __be32 ipv4);
+void nfp_tunnel_add_ipv4_off(struct nfp_app *app, __be32 ipv4);
+void
+nfp_tunnel_put_ipv6_off(struct nfp_app *app, struct nfp_ipv6_addr_entry *entry);
+struct nfp_ipv6_addr_entry *
+nfp_tunnel_add_ipv6_off(struct nfp_app *app, struct in6_addr *ipv6);
+void nfp_tunnel_request_route_v4(struct nfp_app *app, struct sk_buff *skb);
+void nfp_tunnel_request_route_v6(struct nfp_app *app, struct sk_buff *skb);
+void nfp_tunnel_keep_alive(struct nfp_app *app, struct sk_buff *skb);
+void nfp_tunnel_keep_alive_v6(struct nfp_app *app, struct sk_buff *skb);
+void nfp_flower_lag_init(struct nfp_fl_lag *lag);
+void nfp_flower_lag_cleanup(struct nfp_fl_lag *lag);
+int nfp_flower_lag_reset(struct nfp_fl_lag *lag);
+int nfp_flower_lag_netdev_event(struct nfp_flower_priv *priv,
+				struct net_device *netdev,
+				unsigned long event, void *ptr);
+bool nfp_flower_lag_unprocessed_msg(struct nfp_app *app, struct sk_buff *skb);
+int nfp_flower_lag_populate_pre_action(struct nfp_app *app,
+				       struct net_device *master,
+				       struct nfp_fl_pre_lag *pre_act,
+				       struct netlink_ext_ack *extack);
+int nfp_flower_lag_get_output_id(struct nfp_app *app,
+				 struct net_device *master);
+void nfp_flower_lag_get_info_from_netdev(struct nfp_app *app,
+					 struct net_device *netdev,
+					 struct nfp_tun_neigh_lag *lag);
+void nfp_flower_qos_init(struct nfp_app *app);
+void nfp_flower_qos_cleanup(struct nfp_app *app);
+int nfp_flower_setup_qos_offload(struct nfp_app *app, struct net_device *netdev,
+				 struct tc_cls_matchall_offload *flow);
+void nfp_flower_stats_rlim_reply(struct nfp_app *app, struct sk_buff *skb);
+int nfp_flower_indr_setup_tc_cb(struct net_device *netdev, struct Qdisc *sch, void *cb_priv,
+				enum tc_setup_type type, void *type_data,
+				void *data,
+				void (*cleanup)(struct flow_block_cb *block_cb));
+void nfp_flower_setup_indr_tc_release(void *cb_priv);
+
+void
+__nfp_flower_non_repr_priv_get(struct nfp_flower_non_repr_priv *non_repr_priv);
+struct nfp_flower_non_repr_priv *
+nfp_flower_non_repr_priv_get(struct nfp_app *app, struct net_device *netdev);
+void
+__nfp_flower_non_repr_priv_put(struct nfp_flower_non_repr_priv *non_repr_priv);
+void
+nfp_flower_non_repr_priv_put(struct nfp_app *app, struct net_device *netdev);
+u32 nfp_flower_get_port_id_from_netdev(struct nfp_app *app,
+				       struct net_device *netdev);
+void nfp_tun_link_and_update_nn_entries(struct nfp_app *app,
+					struct nfp_predt_entry *predt);
+void nfp_tun_unlink_and_update_nn_entries(struct nfp_app *app,
+					  struct nfp_predt_entry *predt);
+int nfp_flower_xmit_pre_tun_flow(struct nfp_app *app,
+				 struct nfp_fl_payload *flow);
+int nfp_flower_xmit_pre_tun_del_flow(struct nfp_app *app,
+				     struct nfp_fl_payload *flow);
+
+struct nfp_fl_payload *
+nfp_flower_allocate_new(struct nfp_fl_key_ls *key_layer);
+int nfp_flower_calculate_key_layers(struct nfp_app *app,
+				    struct net_device *netdev,
+				    struct nfp_fl_key_ls *ret_key_ls,
+				    struct flow_rule *flow,
+				    enum nfp_flower_tun_type *tun_type,
+				    struct netlink_ext_ack *extack);
+void
+nfp_flower_del_linked_merge_flows(struct nfp_app *app,
+				  struct nfp_fl_payload *sub_flow);
+int
+nfp_flower_xmit_flow(struct nfp_app *app, struct nfp_fl_payload *nfp_flow,
+		     u8 mtype);
+void
+nfp_flower_update_merge_stats(struct nfp_app *app,
+			      struct nfp_fl_payload *sub_flow);
+
+int nfp_setup_tc_act_offload(struct nfp_app *app,
+			     struct flow_offload_action *fl_act);
+int nfp_init_meter_table(struct nfp_app *app);
+void nfp_flower_stats_meter_request_all(struct nfp_flower_priv *fl_priv);
+void nfp_act_stats_reply(struct nfp_app *app, void *pmsg);
+int nfp_flower_offload_one_police(struct nfp_app *app, bool ingress,
+				  bool pps, u32 id, u32 rate, u32 burst);
+int nfp_flower_setup_meter_entry(struct nfp_app *app,
+				 const struct flow_action_entry *action,
+				 enum nfp_meter_op op,
+				 u32 meter_id);
+struct nfp_meter_entry *
+nfp_flower_search_meter_entry(struct nfp_app *app, u32 meter_id);
+#endif