| /* 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 <linux/circ_buf.h> |
| #include <linux/hashtable.h> |
| #include <linux/rhashtable.h> |
| #include <linux/time64.h> |
| #include <linux/types.h> |
| #include <net/pkt_cls.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 FIELD_SIZEOF(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_FL_META_FLAG_MANAGE_MASK BIT(7) |
| |
| #define NFP_FL_MASK_REUSE_TIME_NS 40000 |
| #define NFP_FL_MASK_ID_LOCATION 1 |
| |
| #define NFP_FL_VXLAN_PORT 4789 |
| #define NFP_FL_GENEVE_PORT 6081 |
| |
| /* 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_LAG BIT(31) |
| |
| 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 |
| * @neigh_off_list: List of neighbour offloads |
| * @ipv4_off_lock: Lock for the IPv4 address list |
| * @neigh_off_lock: Lock for the neighbour 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 neigh_off_list; |
| struct mutex ipv4_off_lock; |
| spinlock_t neigh_off_lock; |
| struct ida mac_off_ids; |
| struct notifier_block neigh_nb; |
| }; |
| |
| /** |
| * 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_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 |
| * @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 |
| * @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 |
| */ |
| struct nfp_flower_priv { |
| struct nfp_app *app; |
| struct nfp_net *nn; |
| u32 mask_id_seed; |
| u64 flower_version; |
| u64 flower_ext_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 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_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 |
| * @mac_list: List entry of reprs that share the same offloaded MAC |
| */ |
| struct nfp_flower_repr_priv { |
| struct nfp_repr *nfp_repr; |
| unsigned long lag_port_flags; |
| bool mac_offloaded; |
| u8 offloaded_mac_addr[ETH_ALEN]; |
| struct list_head mac_list; |
| }; |
| |
| /** |
| * 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_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 net_device *ingress_dev; |
| char *unmasked_data; |
| char *mask_data; |
| char *action_data; |
| }; |
| |
| extern const struct rhashtable_params nfp_flower_table_params; |
| |
| struct nfp_fl_stats_frame { |
| __be32 stats_con_id; |
| __be32 pkt_count; |
| __be64 byte_count; |
| __be64 stats_cookie; |
| }; |
| |
| 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_compile_flow_match(struct nfp_app *app, |
| struct tc_cls_flower_offload *flow, |
| struct nfp_fl_key_ls *key_ls, |
| struct net_device *netdev, |
| struct nfp_fl_payload *nfp_flow, |
| enum nfp_flower_tun_type tun_type); |
| int nfp_flower_compile_action(struct nfp_app *app, |
| struct tc_cls_flower_offload *flow, |
| struct net_device *netdev, |
| struct nfp_fl_payload *nfp_flow); |
| int nfp_compile_flow_metadata(struct nfp_app *app, |
| struct tc_cls_flower_offload *flow, |
| struct nfp_fl_payload *nfp_flow, |
| struct net_device *netdev); |
| 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_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_request_route(struct nfp_app *app, struct sk_buff *skb); |
| void nfp_tunnel_keep_alive(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); |
| int nfp_flower_lag_get_output_id(struct nfp_app *app, |
| struct net_device *master); |
| int nfp_flower_reg_indir_block_handler(struct nfp_app *app, |
| struct net_device *netdev, |
| unsigned long event); |
| |
| 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); |
| #endif |