159 lines · plain
1.. SPDX-License-Identifier: GPL-2.02.. Copyright (C) 2023 Google LLC3 4===========================================5netns_ipv4 struct fast path usage breakdown6===========================================7 8Type Name fastpath_tx_access fastpath_rx_access comment9..struct ..netns_ipv4 10struct_inet_timewait_death_row tcp_death_row 11struct_udp_table* udp_table 12struct_ctl_table_header* forw_hdr 13struct_ctl_table_header* frags_hdr 14struct_ctl_table_header* ipv4_hdr 15struct_ctl_table_header* route_hdr 16struct_ctl_table_header* xfrm4_hdr 17struct_ipv4_devconf* devconf_all 18struct_ipv4_devconf* devconf_dflt 19struct_ip_ra_chain ra_chain 20struct_mutex ra_mutex 21struct_fib_rules_ops* rules_ops 22struct_fib_table fib_main 23struct_fib_table fib_default 24unsigned_int fib_rules_require_fldissect 25bool fib_has_custom_rules 26bool fib_has_custom_local_routes 27bool fib_offload_disabled 28atomic_t fib_num_tclassid_users 29struct_hlist_head* fib_table_hash 30struct_sock* fibnl 31struct_sock* mc_autojoin_sk 32struct_inet_peer_base* peers 33struct_fqdir* fqdir 34u8 sysctl_icmp_echo_ignore_all 35u8 sysctl_icmp_echo_enable_probe 36u8 sysctl_icmp_echo_ignore_broadcasts 37u8 sysctl_icmp_ignore_bogus_error_responses 38u8 sysctl_icmp_errors_use_inbound_ifaddr 39int sysctl_icmp_ratelimit 40int sysctl_icmp_ratemask 41u32 ip_rt_min_pmtu - - 42int ip_rt_mtu_expires - - 43int ip_rt_min_advmss - - 44struct_local_ports ip_local_ports - - 45u8 sysctl_tcp_ecn - - 46u8 sysctl_tcp_ecn_fallback - - 47u8 sysctl_ip_default_ttl - - ip4_dst_hoplimit/ip_select_ttl48u8 sysctl_ip_no_pmtu_disc - - 49u8 sysctl_ip_fwd_use_pmtu read_mostly - ip_dst_mtu_maybe_forward/ip_skb_dst_mtu50u8 sysctl_ip_fwd_update_priority - - ip_forward51u8 sysctl_ip_nonlocal_bind - - 52u8 sysctl_ip_autobind_reuse - - 53u8 sysctl_ip_dynaddr - - 54u8 sysctl_ip_early_demux - read_mostly ip(6)_rcv_finish_core55u8 sysctl_raw_l3mdev_accept - - 56u8 sysctl_tcp_early_demux - read_mostly ip(6)_rcv_finish_core57u8 sysctl_udp_early_demux 58u8 sysctl_nexthop_compat_mode - - 59u8 sysctl_fwmark_reflect - - 60u8 sysctl_tcp_fwmark_accept - - 61u8 sysctl_tcp_l3mdev_accept - - 62u8 sysctl_tcp_mtu_probing - - 63int sysctl_tcp_mtu_probe_floor - - 64int sysctl_tcp_base_mss - - 65int sysctl_tcp_min_snd_mss read_mostly - __tcp_mtu_to_mss(tcp_write_xmit)66int sysctl_tcp_probe_threshold - - tcp_mtu_probe(tcp_write_xmit)67u32 sysctl_tcp_probe_interval - - tcp_mtu_check_reprobe(tcp_write_xmit)68int sysctl_tcp_keepalive_time - - 69int sysctl_tcp_keepalive_intvl - - 70u8 sysctl_tcp_keepalive_probes - - 71u8 sysctl_tcp_syn_retries - - 72u8 sysctl_tcp_synack_retries - - 73u8 sysctl_tcp_syncookies - - generated_on_syn74u8 sysctl_tcp_migrate_req - - reuseport75u8 sysctl_tcp_comp_sack_nr - - __tcp_ack_snd_check76int sysctl_tcp_reordering - read_mostly tcp_may_raise_cwnd/tcp_cong_control77u8 sysctl_tcp_retries1 - - 78u8 sysctl_tcp_retries2 - - 79u8 sysctl_tcp_orphan_retries - - 80u8 sysctl_tcp_tw_reuse - - timewait_sock_ops81int sysctl_tcp_fin_timeout - - TCP_LAST_ACK/tcp_rcv_state_process82unsigned_int sysctl_tcp_notsent_lowat read_mostly - tcp_notsent_lowat/tcp_stream_memory_free83u8 sysctl_tcp_sack - - tcp_syn_options84u8 sysctl_tcp_window_scaling - - tcp_syn_options,tcp_parse_options85u8 sysctl_tcp_timestamps 86u8 sysctl_tcp_early_retrans read_mostly - tcp_schedule_loss_probe(tcp_write_xmit)87u8 sysctl_tcp_recovery - - tcp_fastretrans_alert88u8 sysctl_tcp_thin_linear_timeouts - - tcp_retrans_timer(on_thin_streams)89u8 sysctl_tcp_slow_start_after_idle - - unlikely(tcp_cwnd_validate-network-not-starved)90u8 sysctl_tcp_retrans_collapse - - 91u8 sysctl_tcp_stdurg - - unlikely(tcp_check_urg)92u8 sysctl_tcp_rfc1337 - - 93u8 sysctl_tcp_abort_on_overflow - - 94u8 sysctl_tcp_fack - - 95int sysctl_tcp_max_reordering - - tcp_check_sack_reordering96int sysctl_tcp_adv_win_scale - - tcp_init_buffer_space97u8 sysctl_tcp_dsack - - partial_packet_or_retrans_in_tcp_data_queue98u8 sysctl_tcp_app_win - - tcp_win_from_space99u8 sysctl_tcp_frto - - tcp_enter_loss100u8 sysctl_tcp_nometrics_save - - TCP_LAST_ACK/tcp_update_metrics101u8 sysctl_tcp_no_ssthresh_metrics_save - - TCP_LAST_ACK/tcp_(update/init)_metrics102u8 sysctl_tcp_moderate_rcvbuf read_mostly read_mostly tcp_tso_should_defer(tx);tcp_rcv_space_adjust(rx)103u8 sysctl_tcp_tso_win_divisor read_mostly - tcp_tso_should_defer(tcp_write_xmit)104u8 sysctl_tcp_workaround_signed_windows - - tcp_select_window105int sysctl_tcp_limit_output_bytes read_mostly - tcp_small_queue_check(tcp_write_xmit)106int sysctl_tcp_challenge_ack_limit - - 107int sysctl_tcp_min_rtt_wlen read_mostly - tcp_ack_update_rtt108u8 sysctl_tcp_min_tso_segs - - unlikely(icsk_ca_ops-written)109u8 sysctl_tcp_tso_rtt_log read_mostly - tcp_tso_autosize110u8 sysctl_tcp_autocorking read_mostly - tcp_push/tcp_should_autocork111u8 sysctl_tcp_reflect_tos - - tcp_v(4/6)_send_synack112int sysctl_tcp_invalid_ratelimit - - 113int sysctl_tcp_pacing_ss_ratio - - default_cong_cont(tcp_update_pacing_rate)114int sysctl_tcp_pacing_ca_ratio - - default_cong_cont(tcp_update_pacing_rate)115int sysctl_tcp_wmem[3] read_mostly - tcp_wmem_schedule(sendmsg/sendpage)116int sysctl_tcp_rmem[3] - read_mostly __tcp_grow_window(tx),tcp_rcv_space_adjust(rx)117unsigned_int sysctl_tcp_child_ehash_entries 118unsigned_long sysctl_tcp_comp_sack_delay_ns - - __tcp_ack_snd_check119unsigned_long sysctl_tcp_comp_sack_slack_ns - - __tcp_ack_snd_check120int sysctl_max_syn_backlog - - 121int sysctl_tcp_fastopen - - 122struct_tcp_congestion_ops tcp_congestion_control - - init_cc123struct_tcp_fastopen_context tcp_fastopen_ctx - - 124unsigned_int sysctl_tcp_fastopen_blackhole_timeout - - 125atomic_t tfo_active_disable_times - - 126unsigned_long tfo_active_disable_stamp - - 127u32 tcp_challenge_timestamp - - 128u32 tcp_challenge_count - - 129u8 sysctl_tcp_plb_enabled - - 130u8 sysctl_tcp_plb_idle_rehash_rounds - - 131u8 sysctl_tcp_plb_rehash_rounds - - 132u8 sysctl_tcp_plb_suspend_rto_sec - - 133int sysctl_tcp_plb_cong_thresh - - 134int sysctl_udp_wmem_min 135int sysctl_udp_rmem_min 136u8 sysctl_fib_notify_on_flag_change 137u8 sysctl_udp_l3mdev_accept 138u8 sysctl_igmp_llm_reports 139int sysctl_igmp_max_memberships 140int sysctl_igmp_max_msf 141int sysctl_igmp_qrv 142struct_ping_group_range ping_group_range 143atomic_t dev_addr_genid 144unsigned_int sysctl_udp_child_hash_entries 145unsigned_long* sysctl_local_reserved_ports 146int sysctl_ip_prot_sock 147struct_mr_table* mrt 148struct_list_head mr_tables 149struct_fib_rules_ops* mr_rules_ops 150u32 sysctl_fib_multipath_hash_fields 151u8 sysctl_fib_multipath_use_neigh 152u8 sysctl_fib_multipath_hash_policy 153struct_fib_notifier_ops* notifier_ops 154unsigned_int fib_seq 155struct_fib_notifier_ops* ipmr_notifier_ops 156unsigned_int ipmr_seq 157atomic_t rt_genid 158siphash_key_t ip_id_key 159