/* 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__ … #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 … #define NFP_FL_STAT_ID_STAT … #define NFP_FL_STATS_ELEM_RS … #define NFP_FLOWER_MASK_ENTRY_RS … #define NFP_FLOWER_MASK_ELEMENT_RS … #define NFP_FLOWER_MASK_HASH_BITS … #define NFP_FLOWER_KEY_MAX_LW … #define NFP_FL_META_FLAG_MANAGE_MASK … #define NFP_FL_MASK_REUSE_TIME_NS … #define NFP_FL_MASK_ID_LOCATION … /* Extra features bitmap. */ #define NFP_FL_FEATS_GENEVE … #define NFP_FL_NBI_MTU_SETTING … #define NFP_FL_FEATS_GENEVE_OPT … #define NFP_FL_FEATS_VLAN_PCP … #define NFP_FL_FEATS_VF_RLIM … #define NFP_FL_FEATS_FLOW_MOD … #define NFP_FL_FEATS_PRE_TUN_RULES … #define NFP_FL_FEATS_IPV6_TUN … #define NFP_FL_FEATS_VLAN_QINQ … #define NFP_FL_FEATS_QOS_PPS … #define NFP_FL_FEATS_QOS_METER … #define NFP_FL_FEATS_DECAP_V2 … #define NFP_FL_FEATS_TUNNEL_NEIGH_LAG … #define NFP_FL_FEATS_HOST_ACK … #define NFP_FL_ENABLE_FLOW_MERGE … #define NFP_FL_ENABLE_LAG … #define NFP_FL_FEATS_HOST … struct nfp_fl_mask_id { … }; struct nfp_fl_stats_id { … }; /** * 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 nfp_tun_neigh_lag - lag info * @lag_version: lag version * @lag_instance: lag instance */ struct nfp_tun_neigh_lag { … }; /** * 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 { … }; /** * 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 { … }; /** * 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 { … }; /** * 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 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 { … }; /** * 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 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 { … }; /** * 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 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 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 * @nfp_fl_lock: Lock to protect the flow offload operation */ struct nfp_flower_priv { … }; /** * 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 { … }; /** * 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_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 nfp_fl_key_ls { … }; struct nfp_fl_rule_metadata { … }; struct nfp_fl_stats { … }; /** * 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 nfp_fl_payload { … }; struct nfp_fl_payload_link { … }; 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 { … }; struct nfp_fl_stats_frame { … }; struct nfp_meter_stats_entry { … }; struct nfp_meter_entry { … }; enum nfp_meter_op { … }; static inline bool nfp_flower_internal_port_can_offload(struct nfp_app *app, struct net_device *netdev) { … } /* 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) { … } static inline bool nfp_flower_is_supported_bridge(struct net_device *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
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