Vietnamese (machine translation)

• English

Lưu ý

Mục đích của file này là để độc giả tiếng Việt có thể đọc và hiểu tài liệu nhân kernel dễ dàng hơn, không phải để tạo ra một nhánh tài liệu riêng. Nếu bạn có bất kỳ nhận xét hoặc cập nhật nào cho file này, vui lòng thử cập nhật file tiếng Anh gốc trước. Nếu bạn thấy có sự khác biệt giữa bản dịch và bản gốc, hoặc có vấn đề về bản dịch, vui lòng gửi góp ý hoặc patch cho người dịch của file này, hoặc nhờ người bảo trì và người review tài liệu tiếng Việt giúp đỡ.

Bản gốc:

tcp_sock 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 tcp_sock

Type	Name	fastpath_tx_access	fastpath_rx_access	Comments
struct inet_connection_sock	inet_conn
u16	tcp_header_len	read_mostly	read_mostly	tcp_bound_to_half_wnd,tcp_current_mss(tx);tcp_rcv_established(rx)
u16	gso_segs	read_mostly		tcp_xmit_size_goal
__be32	pred_flags	read_write	read_mostly	tcp_select_window(tx);tcp_rcv_established(rx)
u64	bytes_received		read_write	tcp_rcv_nxt_update(rx)
u32	segs_in		read_write	tcp_v6_rcv(rx)
u32	data_segs_in		read_write	tcp_v6_rcv(rx)
u32	rcv_nxt	read_mostly	read_write	tcp_cleanup_rbuf,tcp_send_ack,tcp_inq_hint,tcp_transmit_skb,tcp_receive_window(tx);tcp_v6_do_rcv,tcp_rcv_established,tcp_data_queue,tcp_receive_window,tcp_rcv_nxt_update(write)(rx)
u32	copied_seq		read_mostly	tcp_cleanup_rbuf,tcp_rcv_space_adjust,tcp_inq_hint
u32	rcv_wup		read_write	__tcp_cleanup_rbuf,tcp_receive_window,tcp_receive_established
u32	snd_nxt	read_write	read_mostly	tcp_rate_check_app_limited,__tcp_transmit_skb,tcp_event_new_data_sent(write)(tx);tcp_rcv_established,tcp_ack,tcp_clean_rtx_queue(rx)
u32	segs_out	read_write		__tcp_transmit_skb
u32	data_segs_out	read_write		__tcp_transmit_skb,tcp_update_skb_after_send
u64	bytes_sent	read_write		__tcp_transmit_skb
u64	bytes_acked		read_write	tcp_snd_una_update/tcp_ack
u32	dsack_dups
u32	snd_una	read_mostly	read_write	tcp_wnd_end,tcp_urg_mode,tcp_minshall_check,tcp_cwnd_validate(tx);tcp_ack,tcp_may_update_window,tcp_clean_rtx_queue(write),tcp_ack_tstamp(rx)
u32	snd_sml	read_write		tcp_minshall_check,tcp_minshall_update
u32	rcv_tstamp	read_write	read_write	tcp_ack
void *	tcp_clean_acked	read_mostly		tcp_ack
u32	lsndtime	read_write		tcp_slow_start_after_idle_check,tcp_event_data_sent
u32	last_oow_ack_time
u32	compressed_ack_rcv_nxt
u32	tsoffset	read_mostly	read_mostly	tcp_established_options(tx);tcp_fast_parse_options(rx)
struct list_head	tsq_node
struct list_head	tsorted_sent_queue	read_write		tcp_update_skb_after_send
u32	snd_wl1		read_mostly	tcp_may_update_window
u32	snd_wnd	read_mostly	read_mostly	tcp_wnd_end,tcp_tso_should_defer(tx);tcp_fast_path_on(rx)
u32	max_window	read_mostly		tcp_bound_to_half_wnd,forced_push
u32	mss_cache	read_mostly	read_mostly	tcp_rate_check_app_limited,tcp_current_mss,tcp_sync_mss,tcp_sndbuf_expand,tcp_tso_should_defer(tx);tcp_update_pacing_rate,tcp_clean_rtx_queue(rx)
u32	window_clamp	read_mostly	read_write	tcp_rcv_space_adjust,__tcp_select_window
u32	rcv_ssthresh	read_mostly		__tcp_select_window
u8	scaling_ratio	read_mostly	read_mostly	tcp_win_from_space
struct	tcp_rack
u16	advmss		read_mostly	tcp_rcv_space_adjust
u8	compressed_ack
u8:2	dup_ack_counter
u8:1	tlp_retrans
u8:1	tcp_usec_ts	read_mostly	read_mostly
u32	chrono_start	read_write		tcp_chrono_start/stop(tcp_write_xmit,tcp_cwnd_validate,tcp_send_syn_data)
u32[3]	chrono_stat	read_write		tcp_chrono_start/stop(tcp_write_xmit,tcp_cwnd_validate,tcp_send_syn_data)
u8:2	chrono_type	read_write		tcp_chrono_start/stop(tcp_write_xmit,tcp_cwnd_validate,tcp_send_syn_data)
u8:1	rate_app_limited		read_write	tcp_rate_gen
u8:1	fastopen_connect
u8:1	fastopen_no_cookie
u8:1	is_sack_reneg		read_mostly	tcp_skb_entail,tcp_ack
u8:2	fastopen_client_fail
u8:4	nonagle	read_write		tcp_skb_entail,tcp_push_pending_frames
u8:1	thin_lto
u8:1	recvmsg_inq		read_mostly	tcp_recvmsg
u8:1	repair	read_mostly		tcp_write_xmit
u8:1	frto
u8	repair_queue
u8:2	save_syn
u8:1	syn_data
u8:1	syn_fastopen
u8:1	syn_fastopen_exp
u8:1	syn_fastopen_ch
u8:1	syn_data_acked
u8:1	is_cwnd_limited	read_mostly		tcp_cwnd_validate,tcp_is_cwnd_limited
u32	tlp_high_seq		read_mostly	tcp_ack
u32	tcp_tx_delay
u64	tcp_wstamp_ns	read_write		tcp_pacing_check,tcp_tso_should_defer,tcp_update_skb_after_send
u64	tcp_clock_cache	read_write	read_write	tcp_mstamp_refresh(tcp_write_xmit/tcp_rcv_space_adjust),__tcp_transmit_skb,tcp_tso_should_defer;timer
u64	tcp_mstamp	read_write	read_write	tcp_mstamp_refresh(tcp_write_xmit/tcp_rcv_space_adjust)(tx);tcp_rcv_space_adjust,tcp_rate_gen,tcp_clean_rtx_queue,tcp_ack_update_rtt/tcp_time_stamp(rx);timer
u32	srtt_us	read_mostly	read_write	tcp_tso_should_defer(tx);tcp_update_pacing_rate,__tcp_set_rto,tcp_rtt_estimator(rx)
u32	mdev_us	read_write		tcp_rtt_estimator
u32	mdev_max_us
u32	rttvar_us		read_mostly	__tcp_set_rto
u32	rtt_seq	read_write		tcp_rtt_estimator
struct minmax	rtt_min		read_mostly	tcp_min_rtt/tcp_rate_gen,tcp_min_rtttcp_update_rtt_min
u32	packets_out	read_write	read_write	tcp_packets_in_flight(tx/rx);tcp_slow_start_after_idle_check,tcp_nagle_check,tcp_rate_skb_sent,tcp_event_new_data_sent,tcp_cwnd_validate,tcp_write_xmit(tx);tcp_ack,tcp_clean_rtx_queue,tcp_update_pacing_rate(rx)
u32	retrans_out		read_mostly	tcp_packets_in_flight,tcp_rate_check_app_limited
u32	max_packets_out		read_write	tcp_cwnd_validate
u32	cwnd_usage_seq		read_write	tcp_cwnd_validate
u16	urg_data		read_mostly	tcp_fast_path_check
u8	ecn_flags	read_write		tcp_ecn_send
u8	keepalive_probes
u32	reordering	read_mostly		tcp_sndbuf_expand
u32	reord_seen
u32	snd_up	read_write	read_mostly	tcp_mark_urg,tcp_urg_mode,__tcp_transmit_skb(tx);tcp_clean_rtx_queue(rx)
struct tcp_options_received	rx_opt	read_mostly	read_write	tcp_established_options(tx);tcp_fast_path_on,tcp_ack_update_window,tcp_is_sack,tcp_data_queue,tcp_rcv_established,tcp_ack_update_rtt(rx)
u32	snd_ssthresh		read_mostly	tcp_update_pacing_rate
u32	snd_cwnd	read_mostly	read_mostly	tcp_snd_cwnd,tcp_rate_check_app_limited,tcp_tso_should_defer(tx);tcp_update_pacing_rate
u32	snd_cwnd_cnt
u32	snd_cwnd_clamp
u32	snd_cwnd_used
u32	snd_cwnd_stamp
u32	prior_cwnd
u32	prr_delivered
u32	prr_out	read_mostly	read_mostly	tcp_rate_skb_sent,tcp_newly_delivered(tx);tcp_ack,tcp_rate_gen,tcp_clean_rtx_queue(rx)
u32	delivered	read_mostly	read_write	tcp_rate_skb_sent, tcp_newly_delivered(tx);tcp_ack, tcp_rate_gen, tcp_clean_rtx_queue (rx)
u32	delivered_ce	read_mostly	read_write	tcp_rate_skb_sent(tx);tcp_rate_gen(rx)
u32	received_ce	read_mostly	read_write
u32[3]	received_ecn_bytes	read_mostly	read_write
u8:4	received_ce_pending	read_mostly	read_write
u32[3]	delivered_ecn_bytes		read_write
u16	pkts_acked_ewma		read_write
u8:2	syn_ect_snt	write_mostly	read_write
u8:2	syn_ect_rcv	read_mostly	read_write
u8:2	accecn_minlen	write_mostly	read_write
u8:2	est_ecnfield		read_write
u8:2	accecn_opt_demand	read_mostly	read_write
u8:2	prev_ecnfield		read_write
u64	accecn_opt_tstamp	read_write
u8:4	accecn_fail_mode
u32	lost		read_mostly	tcp_ack
u32	app_limited	read_write	read_mostly	tcp_rate_check_app_limited,tcp_rate_skb_sent(tx);tcp_rate_gen(rx)
u64	first_tx_mstamp	read_write		tcp_rate_skb_sent
u64	delivered_mstamp	read_write		tcp_rate_skb_sent
u32	rate_delivered		read_mostly	tcp_rate_gen
u32	rate_interval_us		read_mostly	rate_delivered,rate_app_limited
u32	rcv_wnd	read_write	read_mostly	tcp_select_window,tcp_receive_window,tcp_fast_path_check
u32	rcv_mwnd_seq	read_write		tcp_select_window
u32	write_seq	read_write		tcp_rate_check_app_limited,tcp_write_queue_empty,tcp_skb_entail,forced_push,tcp_mark_push
u32	notsent_lowat	read_mostly		tcp_stream_memory_free
u32	pushed_seq	read_write		tcp_mark_push,forced_push
u32	lost_out	read_mostly	read_mostly	tcp_left_out(tx);tcp_packets_in_flight(tx/rx);tcp_rate_check_app_limited(rx)
u32	sacked_out	read_mostly	read_mostly	tcp_left_out(tx);tcp_packets_in_flight(tx/rx);tcp_clean_rtx_queue(rx)
struct hrtimer	pacing_timer
struct hrtimer	compressed_ack_timer
struct sk_buff*	retransmit_skb_hint	read_mostly		tcp_clean_rtx_queue
struct rb_root	out_of_order_queue		read_mostly	tcp_data_queue,tcp_fast_path_check
struct sk_buff*	ooo_last_skb
struct tcp_sack_block[1]	duplicate_sack
struct tcp_sack_block[4]	selective_acks
struct tcp_sack_block[4]	recv_sack_cache
struct sk_buff*	highest_sack	read_write		tcp_event_new_data_sent
u32	prior_ssthresh
u32	high_seq
u32	retrans_stamp
u32	undo_marker
int	undo_retrans
u64	bytes_retrans
u32	total_retrans
u32	rto_stamp
u16	total_rto
u16	total_rto_recoveries
u32	total_rto_time
u32	urg_seq
unsigned_int	keepalive_time
unsigned_int	keepalive_intvl
int	linger2
u8	bpf_sock_ops_cb_flags
u8:1	bpf_chg_cc_inprogress
u16	timeout_rehash
u32	rcv_ooopack
u32	rcv_rtt_last_tsecr
struct	rcv_rtt_est		read_write	tcp_rcv_space_adjust,tcp_rcv_established
struct	rcvq_space		read_write	tcp_rcv_space_adjust
struct	mtu_probe
u32	plb_rehash
u32	mtu_info
bool	is_mptcp
bool	smc_hs_congested
bool	syn_smc
struct tcp_sock_af_ops*	af_specific
struct tcp_md5sig_info*	md5sig_info
struct tcp_fastopen_request*	fastopen_req
struct request_sock*	fastopen_rsk
struct saved_syn*	saved_syn