| .. SPDX-License-Identifier: GPL-2.0 |
| .. Copyright (C) 2023 Google LLC |
| |
| =========================================== |
| net_device struct fast path usage breakdown |
| =========================================== |
| |
| Type Name fastpath_tx_access fastpath_rx_access Comments |
| ..struct ..net_device |
| unsigned_long:32 priv_flags read_mostly - __dev_queue_xmit(tx) |
| unsigned_long:1 lltx read_mostly - HARD_TX_LOCK,HARD_TX_TRYLOCK,HARD_TX_UNLOCK(tx) |
| char name[16] - - |
| struct_netdev_name_node* name_node |
| struct_dev_ifalias* ifalias |
| unsigned_long mem_end |
| unsigned_long mem_start |
| unsigned_long base_addr |
| unsigned_long state read_mostly read_mostly netif_running(dev) |
| struct_list_head dev_list |
| struct_list_head napi_list |
| struct_list_head unreg_list |
| struct_list_head close_list |
| struct_list_head ptype_all read_mostly - dev_nit_active(tx) |
| struct_list_head ptype_specific read_mostly deliver_ptype_list_skb/__netif_receive_skb_core(rx) |
| struct adj_list |
| unsigned_int flags read_mostly read_mostly __dev_queue_xmit,__dev_xmit_skb,ip6_output,__ip6_finish_output(tx);ip6_rcv_core(rx) |
| xdp_features_t xdp_features |
| struct_net_device_ops* netdev_ops read_mostly - netdev_core_pick_tx,netdev_start_xmit(tx) |
| struct_xdp_metadata_ops* xdp_metadata_ops |
| int ifindex - read_mostly ip6_rcv_core |
| unsigned_short gflags |
| unsigned_short hard_header_len read_mostly read_mostly ip6_xmit(tx);gro_list_prepare(rx) |
| unsigned_int mtu read_mostly - ip_finish_output2 |
| unsigned_short needed_headroom read_mostly - LL_RESERVED_SPACE/ip_finish_output2 |
| unsigned_short needed_tailroom |
| netdev_features_t features read_mostly read_mostly HARD_TX_LOCK,netif_skb_features,sk_setup_caps(tx);netif_elide_gro(rx) |
| netdev_features_t hw_features |
| netdev_features_t wanted_features |
| netdev_features_t vlan_features |
| netdev_features_t hw_enc_features - - netif_skb_features |
| netdev_features_t mpls_features |
| netdev_features_t gso_partial_features read_mostly gso_features_check |
| unsigned_int min_mtu |
| unsigned_int max_mtu |
| unsigned_short type |
| unsigned_char min_header_len |
| unsigned_char name_assign_type |
| int group |
| struct_net_device_stats stats |
| struct_net_device_core_stats* core_stats |
| atomic_t carrier_up_count |
| atomic_t carrier_down_count |
| struct_iw_handler_def* wireless_handlers |
| struct_iw_public_data* wireless_data |
| struct_ethtool_ops* ethtool_ops |
| struct_l3mdev_ops* l3mdev_ops |
| struct_ndisc_ops* ndisc_ops |
| struct_xfrmdev_ops* xfrmdev_ops |
| struct_tlsdev_ops* tlsdev_ops |
| struct_header_ops* header_ops read_mostly - ip_finish_output2,ip6_finish_output2(tx) |
| unsigned_char operstate |
| unsigned_char link_mode |
| unsigned_char if_port |
| unsigned_char dma |
| unsigned_char perm_addr[32] |
| unsigned_char addr_assign_type |
| unsigned_char addr_len |
| unsigned_char upper_level |
| unsigned_char lower_level |
| unsigned_short neigh_priv_len |
| unsigned_short padded |
| unsigned_short dev_id |
| unsigned_short dev_port |
| spinlock_t addr_list_lock |
| int irq |
| struct_netdev_hw_addr_list uc |
| struct_netdev_hw_addr_list mc |
| struct_netdev_hw_addr_list dev_addrs |
| struct_kset* queues_kset |
| struct_list_head unlink_list |
| unsigned_int promiscuity |
| unsigned_int allmulti |
| bool uc_promisc |
| unsigned_char nested_level |
| struct_in_device* ip_ptr read_mostly read_mostly __in_dev_get |
| struct_inet6_dev* ip6_ptr read_mostly read_mostly __in6_dev_get |
| struct_vlan_info* vlan_info |
| struct_dsa_port* dsa_ptr |
| struct_tipc_bearer* tipc_ptr |
| void* atalk_ptr |
| void* ax25_ptr |
| struct_wireless_dev* ieee80211_ptr |
| struct_wpan_dev* ieee802154_ptr |
| struct_mpls_dev* mpls_ptr |
| struct_mctp_dev* mctp_ptr |
| unsigned_char* dev_addr |
| struct_netdev_queue* _rx read_mostly - netdev_get_rx_queue(rx) |
| unsigned_int num_rx_queues |
| unsigned_int real_num_rx_queues - read_mostly get_rps_cpu |
| struct_bpf_prog* xdp_prog - read_mostly netif_elide_gro() |
| unsigned_long gro_flush_timeout - read_mostly napi_complete_done |
| u32 napi_defer_hard_irqs - read_mostly napi_complete_done |
| unsigned_int gro_max_size - read_mostly skb_gro_receive |
| unsigned_int gro_ipv4_max_size - read_mostly skb_gro_receive |
| rx_handler_func_t* rx_handler read_mostly - __netif_receive_skb_core |
| void* rx_handler_data read_mostly - |
| struct_netdev_queue* ingress_queue read_mostly - |
| struct_bpf_mprog_entry tcx_ingress - read_mostly sch_handle_ingress |
| struct_nf_hook_entries* nf_hooks_ingress |
| unsigned_char broadcast[32] |
| struct_cpu_rmap* rx_cpu_rmap |
| struct_hlist_node index_hlist |
| struct_netdev_queue* _tx read_mostly - netdev_get_tx_queue(tx) |
| unsigned_int num_tx_queues - - |
| unsigned_int real_num_tx_queues read_mostly - skb_tx_hash,netdev_core_pick_tx(tx) |
| unsigned_int tx_queue_len |
| spinlock_t tx_global_lock |
| struct_xdp_dev_bulk_queue__percpu* xdp_bulkq |
| struct_xps_dev_maps* xps_maps[2] read_mostly - __netif_set_xps_queue |
| struct_bpf_mprog_entry tcx_egress read_mostly - sch_handle_egress |
| struct_nf_hook_entries* nf_hooks_egress read_mostly - |
| struct_hlist_head qdisc_hash[16] |
| struct_timer_list watchdog_timer |
| int watchdog_timeo |
| u32 proto_down_reason |
| struct_list_head todo_list |
| int__percpu* pcpu_refcnt |
| refcount_t dev_refcnt |
| struct_ref_tracker_dir refcnt_tracker |
| struct_list_head link_watch_list |
| enum:8 reg_state |
| bool dismantle |
| enum:16 rtnl_link_state |
| bool needs_free_netdev |
| void*priv_destructor struct_net_device |
| struct_netpoll_info* npinfo - read_mostly napi_poll/napi_poll_lock |
| possible_net_t nd_net - read_mostly (dev_net)napi_busy_loop,tcp_v(4/6)_rcv,ip(v6)_rcv,ip(6)_input,ip(6)_input_finish |
| void* ml_priv |
| enum_netdev_ml_priv_type ml_priv_type |
| struct_pcpu_lstats__percpu* lstats read_mostly dev_lstats_add() |
| struct_pcpu_sw_netstats__percpu* tstats read_mostly dev_sw_netstats_tx_add() |
| struct_pcpu_dstats__percpu* dstats |
| struct_garp_port* garp_port |
| struct_mrp_port* mrp_port |
| struct_dm_hw_stat_delta* dm_private |
| struct_device dev - - |
| struct_attribute_group* sysfs_groups[4] |
| struct_attribute_group* sysfs_rx_queue_group |
| struct_rtnl_link_ops* rtnl_link_ops |
| unsigned_int gso_max_size read_mostly - sk_dst_gso_max_size |
| unsigned_int tso_max_size |
| u16 gso_max_segs read_mostly - gso_max_segs |
| u16 tso_max_segs |
| unsigned_int gso_ipv4_max_size read_mostly - sk_dst_gso_max_size |
| struct_dcbnl_rtnl_ops* dcbnl_ops |
| s16 num_tc read_mostly - skb_tx_hash |
| struct_netdev_tc_txq tc_to_txq[16] read_mostly - skb_tx_hash |
| u8 prio_tc_map[16] |
| unsigned_int fcoe_ddp_xid |
| struct_netprio_map* priomap |
| struct_phy_device* phydev |
| struct_sfp_bus* sfp_bus |
| struct_lock_class_key* qdisc_tx_busylock |
| bool proto_down |
| unsigned:1 wol_enabled |
| unsigned:1 threaded - - napi_poll(napi_enable,dev_set_threaded) |
| unsigned_long:1 see_all_hwtstamp_requests |
| unsigned_long:1 change_proto_down |
| unsigned_long:1 netns_local |
| unsigned_long:1 fcoe_mtu |
| struct_list_head net_notifier_list |
| struct_macsec_ops* macsec_ops |
| struct_udp_tunnel_nic_info* udp_tunnel_nic_info |
| struct_udp_tunnel_nic* udp_tunnel_nic |
| unsigned_int xdp_zc_max_segs |
| struct_bpf_xdp_entity xdp_state[3] |
| u8 dev_addr_shadow[32] |
| netdevice_tracker linkwatch_dev_tracker |
| netdevice_tracker watchdog_dev_tracker |
| netdevice_tracker dev_registered_tracker |
| struct_rtnl_hw_stats64* offload_xstats_l3 |
| struct_devlink_port* devlink_port |
| struct_dpll_pin* dpll_pin |
| struct hlist_head page_pools |
| struct dim_irq_moder* irq_moder |
