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Bản gốc:

net_device struct fast path usage breakdown

Người dịch:

Google Translate (machine translation)

Phiên bản gốc:

8541d8f725c6

Cảnh báo

Tài liệu này được dịch tự động bằng máy và chưa được review bởi người dịch. Nội dung có thể không chính xác hoặc khó hiểu ở một số chỗ. Khi có sự khác biệt với bản gốc, bản gốc luôn là chuẩn. Bản dịch chất lượng cao (được review) được đặt trong thư mục vi_VN/.

phân tích sử dụng đường dẫn nhanh cấu trúc net_device

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)
unsigned long:1	netmem_tx:1;	read_mostly
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
u8	threaded			napi_poll(napi_enable,netif_set_threaded)
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
bool	rtnl_link_initilizing
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_long:1	see_all_hwtstamp_requests
unsigned_long:1	change_proto_down
unsigned_long:1	netns_immutable
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]