요약·해설과 원문, 전문 번역을 서로 분리했습니다. API 이름, symbol, source path는 원문 표기를 사용합니다.
1. 요약·해설
원문의 핵심 논리와 kernel programming 관점의 보충 설명입니다. 아래의 전문 번역과는 별도로 작성했습니다.
2. 영어 원문 전체
번역 기준이 된 Linux v6.18.37 원문입니다. 줄 번호는 이 버전의 파일 좌표입니다.
원문 전체 펼치기
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.. SPDX-License-Identifier: GPL-2.0
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.. Copyright (C) 2023 Google LLC
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===========================================
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net_device struct fast path usage breakdown
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===========================================
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=================================== =========================== =================== =================== ===================================================================================
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Type Name fastpath_tx_access fastpath_rx_access Comments
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=================================== =========================== =================== =================== ===================================================================================
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unsigned_long:32 priv_flags read_mostly __dev_queue_xmit(tx)
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unsigned_long:1 lltx read_mostly HARD_TX_LOCK,HARD_TX_TRYLOCK,HARD_TX_UNLOCK(tx)
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unsigned long:1 netmem_tx:1; read_mostly
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char name[16]
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struct netdev_name_node* name_node
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struct dev_ifalias* ifalias
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unsigned_long mem_end
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unsigned_long mem_start
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unsigned_long base_addr
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unsigned_long state read_mostly read_mostly netif_running(dev)
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struct list_head dev_list
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struct list_head napi_list
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struct list_head unreg_list
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struct list_head close_list
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struct list_head ptype_all read_mostly dev_nit_active(tx)
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struct list_head ptype_specific read_mostly deliver_ptype_list_skb/__netif_receive_skb_core(rx)
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struct adj_list
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unsigned_int flags read_mostly read_mostly __dev_queue_xmit,__dev_xmit_skb,ip6_output,__ip6_finish_output(tx);ip6_rcv_core(rx)
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xdp_features_t xdp_features
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struct net_device_ops* netdev_ops read_mostly netdev_core_pick_tx,netdev_start_xmit(tx)
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struct xdp_metadata_ops* xdp_metadata_ops
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int ifindex read_mostly ip6_rcv_core
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unsigned_short gflags
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unsigned_short hard_header_len read_mostly read_mostly ip6_xmit(tx);gro_list_prepare(rx)
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unsigned_int mtu read_mostly ip_finish_output2
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unsigned_short needed_headroom read_mostly LL_RESERVED_SPACE/ip_finish_output2
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unsigned_short needed_tailroom
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netdev_features_t features read_mostly read_mostly HARD_TX_LOCK,netif_skb_features,sk_setup_caps(tx);netif_elide_gro(rx)
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netdev_features_t hw_features
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netdev_features_t wanted_features
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netdev_features_t vlan_features
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netdev_features_t hw_enc_features netif_skb_features
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netdev_features_t mpls_features
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netdev_features_t gso_partial_features read_mostly gso_features_check
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unsigned_int min_mtu
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unsigned_int max_mtu
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unsigned_short type
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unsigned_char min_header_len
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unsigned_char name_assign_type
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int group
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struct net_device_stats stats
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struct net_device_core_stats* core_stats
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atomic_t carrier_up_count
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atomic_t carrier_down_count
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struct iw_handler_def* wireless_handlers
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struct ethtool_ops* ethtool_ops
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struct l3mdev_ops* l3mdev_ops
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struct ndisc_ops* ndisc_ops
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struct xfrmdev_ops* xfrmdev_ops
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struct tlsdev_ops* tlsdev_ops
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struct header_ops* header_ops read_mostly ip_finish_output2,ip6_finish_output2(tx)
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unsigned_char operstate
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unsigned_char link_mode
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unsigned_char if_port
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unsigned_char dma
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unsigned_char perm_addr[32]
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unsigned_char addr_assign_type
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unsigned_char addr_len
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unsigned_char upper_level
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unsigned_char lower_level
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u8 threaded napi_poll(napi_enable,netif_set_threaded)
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unsigned_short neigh_priv_len
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unsigned_short padded
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unsigned_short dev_id
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unsigned_short dev_port
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spinlock_t addr_list_lock
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int irq
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struct netdev_hw_addr_list uc
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struct netdev_hw_addr_list mc
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struct netdev_hw_addr_list dev_addrs
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struct kset* queues_kset
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struct list_head unlink_list
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unsigned_int promiscuity
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unsigned_int allmulti
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bool uc_promisc
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unsigned_char nested_level
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struct in_device* ip_ptr read_mostly read_mostly __in_dev_get
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struct hlist_head fib_nh_head
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struct inet6_dev* ip6_ptr read_mostly read_mostly __in6_dev_get
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struct vlan_info* vlan_info
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struct dsa_port* dsa_ptr
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struct tipc_bearer* tipc_ptr
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void* atalk_ptr
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void* ax25_ptr
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struct wireless_dev* ieee80211_ptr
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struct wpan_dev* ieee802154_ptr
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struct mpls_dev* mpls_ptr
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struct mctp_dev* mctp_ptr
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unsigned_char* dev_addr
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struct netdev_queue* _rx read_mostly netdev_get_rx_queue(rx)
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unsigned_int num_rx_queues
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unsigned_int real_num_rx_queues read_mostly get_rps_cpu
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struct bpf_prog* xdp_prog read_mostly netif_elide_gro()
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unsigned_long gro_flush_timeout read_mostly napi_complete_done
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u32 napi_defer_hard_irqs read_mostly napi_complete_done
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unsigned_int gro_max_size read_mostly skb_gro_receive
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unsigned_int gro_ipv4_max_size read_mostly skb_gro_receive
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rx_handler_func_t* rx_handler read_mostly __netif_receive_skb_core
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void* rx_handler_data read_mostly
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struct netdev_queue* ingress_queue read_mostly
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struct bpf_mprog_entry tcx_ingress read_mostly sch_handle_ingress
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struct nf_hook_entries* nf_hooks_ingress
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unsigned_char broadcast[32]
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struct cpu_rmap* rx_cpu_rmap
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struct hlist_node index_hlist
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struct netdev_queue* _tx read_mostly netdev_get_tx_queue(tx)
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unsigned_int num_tx_queues
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unsigned_int real_num_tx_queues read_mostly skb_tx_hash,netdev_core_pick_tx(tx)
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unsigned_int tx_queue_len
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spinlock_t tx_global_lock
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struct xdp_dev_bulk_queue__percpu* xdp_bulkq
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struct xps_dev_maps* xps_maps[2] read_mostly __netif_set_xps_queue
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struct bpf_mprog_entry tcx_egress read_mostly sch_handle_egress
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struct nf_hook_entries* nf_hooks_egress read_mostly
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struct hlist_head qdisc_hash[16]
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struct timer_list watchdog_timer
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int watchdog_timeo
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u32 proto_down_reason
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struct list_head todo_list
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int__percpu* pcpu_refcnt
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refcount_t dev_refcnt
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struct ref_tracker_dir refcnt_tracker
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struct list_head link_watch_list
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enum:8 reg_state
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bool dismantle
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bool rtnl_link_initilizing
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bool needs_free_netdev
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void*priv_destructor struct net_device
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struct netpoll_info* npinfo read_mostly napi_poll/napi_poll_lock
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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
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void* ml_priv
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enum_netdev_ml_priv_type ml_priv_type
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struct pcpu_lstats__percpu* lstats read_mostly dev_lstats_add()
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struct pcpu_sw_netstats__percpu* tstats read_mostly dev_sw_netstats_tx_add()
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struct pcpu_dstats__percpu* dstats
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struct garp_port* garp_port
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struct mrp_port* mrp_port
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struct dm_hw_stat_delta* dm_private
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struct device dev
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struct attribute_group* sysfs_groups[4]
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struct attribute_group* sysfs_rx_queue_group
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struct rtnl_link_ops* rtnl_link_ops
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unsigned_int gso_max_size read_mostly sk_dst_gso_max_size
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unsigned_int tso_max_size
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u16 gso_max_segs read_mostly gso_max_segs
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u16 tso_max_segs
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unsigned_int gso_ipv4_max_size read_mostly sk_dst_gso_max_size
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struct dcbnl_rtnl_ops* dcbnl_ops
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s16 num_tc read_mostly skb_tx_hash
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struct netdev_tc_txq tc_to_txq[16] read_mostly skb_tx_hash
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u8 prio_tc_map[16]
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unsigned_int fcoe_ddp_xid
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struct netprio_map* priomap
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struct phy_device* phydev
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struct sfp_bus* sfp_bus
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struct lock_class_key* qdisc_tx_busylock
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bool proto_down
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unsigned:1 wol_enabled
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unsigned_long:1 see_all_hwtstamp_requests
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unsigned_long:1 change_proto_down
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unsigned_long:1 netns_immutable
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unsigned_long:1 fcoe_mtu
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struct list_head net_notifier_list
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struct macsec_ops* macsec_ops
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struct udp_tunnel_nic_info* udp_tunnel_nic_info
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struct udp_tunnel_nic* udp_tunnel_nic
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unsigned_int xdp_zc_max_segs
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struct bpf_xdp_entity xdp_state[3]
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u8 dev_addr_shadow[32]
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netdevice_tracker linkwatch_dev_tracker
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netdevice_tracker watchdog_dev_tracker
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netdevice_tracker dev_registered_tracker
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struct rtnl_hw_stats64* offload_xstats_l3
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struct devlink_port* devlink_port
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struct dpll_pin* dpll_pin
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struct hlist_head page_pools
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struct dim_irq_moder* irq_moder
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u64 max_pacing_offload_horizon
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struct_napi_config* napi_config
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unsigned_long gro_flush_timeout
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u32 napi_defer_hard_irqs
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struct hlist_head neighbours[2]
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=================================== =========================== =================== =================== ===================================================================================
3. 한국어 전문 번역
영어 원문의 문단 순서와 의미를 유지한 전체 번역입니다. 코드, 함수명, symbol과 URL은 원문 표기를 유지합니다.
Core identity·상태·feature field
1-70이 표는 `struct net_device` field를 type과 symbol별로 나누고 TX 및 RX fast path의 접근 성격과 대표 function을 기록합니다. `read_mostly`, `read_write`, `write_mostly` 원문 분류는 보존하고 한국어 뜻을 덧붙였습니다. 빈 칸은 해당 access나 function 좌표가 원문에서 분류되지 않았다는 뜻입니다.
앞부분의 TX hot field는 `priv_flags`, `lltx`, `state`, packet type list, `flags`, `netdev_ops`, header 길이와 MTU, headroom, feature mask와 `header_ops`입니다. `state`, `flags`, `hard_header_len`, `features`는 RX도 자주 읽어 두 방향 fast path가 같은 cacheline data를 공유할 가능성이 큽니다.
Device 이름, memory와 base address, 통계·carrier count, wireless·ethtool·L3·NDISC·XFRM·TLS operation pointer와 permanent address 등 hotness가 표시되지 않은 field도 빠짐없이 표에 남깁니다.
TypeNameTX fast pathRX fast path참조 function·설명
unsigned_long:32priv_flagsread_mostly (주로 읽기)__dev_queue_xmit(tx)
unsigned_long:1lltxread_mostly (주로 읽기)HARD_TX_LOCK,HARD_TX_TRYLOCK,HARD_TX_UNLOCK(tx)
unsigned long:1netmem_tx:1;read_mostly (주로 읽기)
charname[16]
struct netdev_name_node*name_node
struct dev_ifalias*ifalias
unsigned_longmem_end
unsigned_longmem_start
unsigned_longbase_addr
unsigned_longstateread_mostly (주로 읽기)read_mostly (주로 읽기)netif_running(dev)
struct list_headdev_list
struct list_headnapi_list
struct list_headunreg_list
struct list_headclose_list
struct list_headptype_allread_mostly (주로 읽기)dev_nit_active(tx)
struct list_headptype_specificread_mostly (주로 읽기)deliver_ptype_list_skb/__netif_receive_skb_core(rx)
structadj_list
unsigned_intflagsread_mostly (주로 읽기)read_mostly (주로 읽기)__dev_queue_xmit,__dev_xmit_skb,ip6_output,__ip6_finish_output(tx);ip6_rcv_core(rx)
xdp_features_txdp_features
struct net_device_ops*netdev_opsread_mostly (주로 읽기)netdev_core_pick_tx,netdev_start_xmit(tx)
struct xdp_metadata_ops*xdp_metadata_ops
intifindexread_mostly (주로 읽기)ip6_rcv_core
unsigned_shortgflags
unsigned_shorthard_header_lenread_mostly (주로 읽기)read_mostly (주로 읽기)ip6_xmit(tx);gro_list_prepare(rx)
unsigned_intmturead_mostly (주로 읽기)ip_finish_output2
unsigned_shortneeded_headroomread_mostly (주로 읽기)LL_RESERVED_SPACE/ip_finish_output2
unsigned_shortneeded_tailroom
netdev_features_tfeaturesread_mostly (주로 읽기)read_mostly (주로 읽기)HARD_TX_LOCK,netif_skb_features,sk_setup_caps(tx);netif_elide_gro(rx)
netdev_features_thw_features
netdev_features_twanted_features
netdev_features_tvlan_features
netdev_features_thw_enc_featuresnetif_skb_features
netdev_features_tmpls_features
netdev_features_tgso_partial_featuresread_mostly (주로 읽기)gso_features_check
unsigned_intmin_mtu
unsigned_intmax_mtu
unsigned_shorttype
unsigned_charmin_header_len
unsigned_charname_assign_type
intgroup
struct net_device_statsstats
struct net_device_core_stats*core_stats
atomic_tcarrier_up_count
atomic_tcarrier_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_opsread_mostly (주로 읽기)ip_finish_output2,ip6_finish_output2(tx)
unsigned_charoperstate
unsigned_charlink_mode
unsigned_charif_port
unsigned_chardma
unsigned_charperm_addr[32]
unsigned_charaddr_assign_type
unsigned_charaddr_len
unsigned_charupper_level
unsigned_charlower_level
원문 11~70행을 구조화했습니다.
.. 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)
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_levelProtocol pointer와 RX·TX queue path
71-130중간 영역은 address list, IPv4·IPv6 protocol pointer, VLAN·DSA·TIPC·MPLS·MCTP 연결과 RX/TX queue를 담습니다. `ip_ptr`와 `ip6_ptr`는 두 fast path에서 주로 읽고 `_rx`, `real_num_rx_queues`, XDP program, GRO timeout·size, ingress handler와 TCX ingress가 receive path에 관여합니다.
송신 쪽에서는 `_tx`, `real_num_tx_queues`, XPS map, TCX와 netfilter egress가 hot합니다. `real_num_tx_queues`는 `skb_tx_hash`와 `netdev_core_pick_tx`, `xps_maps`는 `__netif_set_xps_queue`에서 읽힙니다. 원문의 `_rx` access 표기가 TX column에 위치한 경우도 교정하지 않고 source table 좌표를 그대로 보존했습니다.
Promiscuity, multicast·unicast address, queue kset, NAPI/GRO, RX handler, qdisc hash와 watchdog 및 reference count 관련 field까지 전체 layout을 함께 보여 줍니다.
TypeNameTX fast pathRX fast path참조 function·설명
u8threadednapi_poll(napi_enable,netif_set_threaded)
unsigned_shortneigh_priv_len
unsigned_shortpadded
unsigned_shortdev_id
unsigned_shortdev_port
spinlock_taddr_list_lock
intirq
struct netdev_hw_addr_listuc
struct netdev_hw_addr_listmc
struct netdev_hw_addr_listdev_addrs
struct kset*queues_kset
struct list_headunlink_list
unsigned_intpromiscuity
unsigned_intallmulti
booluc_promisc
unsigned_charnested_level
struct in_device*ip_ptrread_mostly (주로 읽기)read_mostly (주로 읽기)__in_dev_get
struct hlist_headfib_nh_head
struct inet6_dev*ip6_ptrread_mostly (주로 읽기)read_mostly (주로 읽기)__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*_rxread_mostly (주로 읽기)netdev_get_rx_queue(rx)
unsigned_intnum_rx_queues
unsigned_intreal_num_rx_queuesread_mostly (주로 읽기)get_rps_cpu
struct bpf_prog*xdp_progread_mostly (주로 읽기)netif_elide_gro()
unsigned_longgro_flush_timeoutread_mostly (주로 읽기)napi_complete_done
u32napi_defer_hard_irqsread_mostly (주로 읽기)napi_complete_done
unsigned_intgro_max_sizeread_mostly (주로 읽기)skb_gro_receive
unsigned_intgro_ipv4_max_sizeread_mostly (주로 읽기)skb_gro_receive
rx_handler_func_t*rx_handlerread_mostly (주로 읽기)__netif_receive_skb_core
void*rx_handler_dataread_mostly (주로 읽기)
struct netdev_queue*ingress_queueread_mostly (주로 읽기)
struct bpf_mprog_entrytcx_ingressread_mostly (주로 읽기)sch_handle_ingress
struct nf_hook_entries*nf_hooks_ingress
unsigned_charbroadcast[32]
struct cpu_rmap*rx_cpu_rmap
struct hlist_nodeindex_hlist
struct netdev_queue*_txread_mostly (주로 읽기)netdev_get_tx_queue(tx)
unsigned_intnum_tx_queues
unsigned_intreal_num_tx_queuesread_mostly (주로 읽기)skb_tx_hash,netdev_core_pick_tx(tx)
unsigned_inttx_queue_len
spinlock_ttx_global_lock
struct xdp_dev_bulk_queue__percpu*xdp_bulkq
struct xps_dev_maps*xps_maps[2]read_mostly (주로 읽기)__netif_set_xps_queue
struct bpf_mprog_entrytcx_egressread_mostly (주로 읽기)sch_handle_egress
struct nf_hook_entries*nf_hooks_egressread_mostly (주로 읽기)
struct hlist_headqdisc_hash[16]
struct timer_listwatchdog_timer
intwatchdog_timeo
u32proto_down_reason
struct list_headtodo_list
int__percpu*pcpu_refcnt
원문 71~130행을 구조화했습니다.
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_refcntLifecycle·statistics·offload tail
131-193후반부는 device reference와 등록 상태, namespace, per-CPU statistics, sysfs와 rtnl link, GSO/TSO limit, traffic class mapping 및 hardware integration pointer를 다룹니다. RX는 `npinfo`와 `nd_net`을 주로 읽고 TX는 `lstats`, `tstats`, GSO limit, `num_tc`, `tc_to_txq`를 자주 읽습니다.
`nd_net`은 NAPI busy loop와 TCP/IP receive 경로에서 namespace를 찾는 데 사용됩니다. `gso_max_size`, `gso_ipv4_max_size`, `gso_max_segs`는 segmentation limit을, `num_tc`와 `tc_to_txq`는 `skb_tx_hash`의 traffic class별 queue 선택을 지원합니다.
PHY·SFP·MACsec·UDP tunnel·XDP state, devlink와 DPLL, page pool, DIM IRQ moderation, pacing offload horizon 및 NAPI configuration 등 최신 tail field와 final neighbour hash도 원문 순서로 보존합니다.
TypeNameTX fast pathRX fast path참조 function·설명
refcount_tdev_refcnt
struct ref_tracker_dirrefcnt_tracker
struct list_headlink_watch_list
enum:8reg_state
booldismantle
boolrtnl_link_initilizing
boolneeds_free_netdev
void*priv_destructorstruct net_device
struct netpoll_info*npinforead_mostly (주로 읽기)napi_poll/napi_poll_lock
possible_net_tnd_netread_mostly (주로 읽기)(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_typeml_priv_type
struct pcpu_lstats__percpu*lstatsread_mostly (주로 읽기)dev_lstats_add()
struct pcpu_sw_netstats__percpu*tstatsread_mostly (주로 읽기)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 devicedev
struct attribute_group*sysfs_groups[4]
struct attribute_group*sysfs_rx_queue_group
struct rtnl_link_ops*rtnl_link_ops
unsigned_intgso_max_sizeread_mostly (주로 읽기)sk_dst_gso_max_size
unsigned_inttso_max_size
u16gso_max_segsread_mostly (주로 읽기)gso_max_segs
u16tso_max_segs
unsigned_intgso_ipv4_max_sizeread_mostly (주로 읽기)sk_dst_gso_max_size
struct dcbnl_rtnl_ops*dcbnl_ops
s16num_tcread_mostly (주로 읽기)skb_tx_hash
struct netdev_tc_txqtc_to_txq[16]read_mostly (주로 읽기)skb_tx_hash
u8prio_tc_map[16]
unsigned_intfcoe_ddp_xid
struct netprio_map*priomap
struct phy_device*phydev
struct sfp_bus*sfp_bus
struct lock_class_key*qdisc_tx_busylock
boolproto_down
unsigned:1wol_enabled
unsigned_long:1see_all_hwtstamp_requests
unsigned_long:1change_proto_down
unsigned_long:1netns_immutable
unsigned_long:1fcoe_mtu
struct list_headnet_notifier_list
struct macsec_ops*macsec_ops
struct udp_tunnel_nic_info*udp_tunnel_nic_info
struct udp_tunnel_nic*udp_tunnel_nic
unsigned_intxdp_zc_max_segs
struct bpf_xdp_entityxdp_state[3]
u8dev_addr_shadow[32]
netdevice_trackerlinkwatch_dev_tracker
netdevice_trackerwatchdog_dev_tracker
netdevice_trackerdev_registered_tracker
struct rtnl_hw_stats64*offload_xstats_l3
struct devlink_port*devlink_port
struct dpll_pin*dpll_pin
struct hlist_headpage_pools
struct dim_irq_moder*irq_moder
u64max_pacing_offload_horizon
struct_napi_config*napi_config
unsigned_longgro_flush_timeout
u32napi_defer_hard_irqs
struct hlist_headneighbours[2]
원문 131~192행을 구조화했습니다.
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]
=================================== =========================== =================== =================== ===================================================================================
요약·해설
net_device.rst:1-193Device state와 feature부터 RX/TX queue, namespace, statistics와 offload tail까지 182개 field의 type·symbol·hotness·function을 구조화해 보존했습니다.