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.. 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
=================================== =========================== =================== =================== ===================================================================================
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 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 hlist_head fib_nh_head
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
u64 max_pacing_offload_horizon
struct_napi_config* napi_config
unsigned_long gro_flush_timeout
u32 napi_defer_hard_irqs
struct hlist_head neighbours[2]
=================================== =========================== =================== =================== ===================================================================================
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