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[WIP] [Deepin-Kernel-SIG] [Upstream] [linux 6.6-y] Network struct reorganize #567

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[WIP] [Deepin-Kernel-SIG] [Upstream] [linux 6.6-y] Network struct reorganize #567

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c8d19c1
Documentations: Analyze heavily used Networking related structs
xli98 Nov 29, 2023
3dd9bc8
cache: enforce cache groups
xli98 Nov 29, 2023
be1c89b
netns-ipv4: reorganize netns_ipv4 fast path variables
xli98 Nov 29, 2023
6422199
net-device: reorganize net_device fast path variables
xli98 Dec 4, 2023
3a2ae7f
tcp: reorganize tcp_sock fast path variables
xli98 Dec 4, 2023
85aba8f
net-device: move gso_partial_features to net_device_read_tx
Dec 21, 2023
1bd9d89
net-device: move xdp_prog to net_device_read_rx
Jan 2, 2024
dfb19c0
tcp: move tp->scaling_ratio to tcp_sock_read_txrx group
Feb 8, 2024
2e71ec6
tcp: move tp->tcp_usec_ts to tcp_sock_read_txrx group
Feb 8, 2024
cfe54a3
net-device: move lstats in net_device_read_txrx
Feb 8, 2024
8a2f715
net: move dev->state into net_device_read_txrx group
Mar 14, 2024
c31297b
net: tcp: replace the document for "lsndtime" in tcp_sock
image-dragon Nov 4, 2024
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1 change: 1 addition & 0 deletions Documentation/networking/index.rst
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Expand Up @@ -75,6 +75,7 @@ Contents:
mptcp-sysctl
multiqueue
napi
net_cachelines/index
netconsole
netdev-features
netdevices
Expand Down
15 changes: 15 additions & 0 deletions Documentation/networking/net_cachelines/index.rst
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.. SPDX-License-Identifier: GPL-2.0
.. Copyright (C) 2023 Google LLC
===================================
Common Networking Struct Cachelines
===================================

.. toctree::
:maxdepth: 1

inet_connection_sock
inet_sock
net_device
netns_ipv4_sysctl
snmp
tcp_sock
49 changes: 49 additions & 0 deletions Documentation/networking/net_cachelines/inet_connection_sock.rst
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.. SPDX-License-Identifier: GPL-2.0
.. Copyright (C) 2023 Google LLC
=====================================================
inet_connection_sock struct fast path usage breakdown
=====================================================

Type Name fastpath_tx_access fastpath_rx_access comment
..struct ..inet_connection_sock
struct_inet_sock icsk_inet read_mostly read_mostly tcp_init_buffer_space,tcp_init_transfer,tcp_finish_connect,tcp_connect,tcp_send_rcvq,tcp_send_syn_data
struct_request_sock_queue icsk_accept_queue - -
struct_inet_bind_bucket icsk_bind_hash read_mostly - tcp_set_state
struct_inet_bind2_bucket icsk_bind2_hash read_mostly - tcp_set_state,inet_put_port
unsigned_long icsk_timeout read_mostly - inet_csk_reset_xmit_timer,tcp_connect
struct_timer_list icsk_retransmit_timer read_mostly - inet_csk_reset_xmit_timer,tcp_connect
struct_timer_list icsk_delack_timer read_mostly - inet_csk_reset_xmit_timer,tcp_connect
u32 icsk_rto read_write - tcp_cwnd_validate,tcp_schedule_loss_probe,tcp_connect_init,tcp_connect,tcp_write_xmit,tcp_push_one
u32 icsk_rto_min - -
u32 icsk_delack_max - -
u32 icsk_pmtu_cookie read_write - tcp_sync_mss,tcp_current_mss,tcp_send_syn_data,tcp_connect_init,tcp_connect
struct_tcp_congestion_ops icsk_ca_ops read_write - tcp_cwnd_validate,tcp_tso_segs,tcp_ca_dst_init,tcp_connect_init,tcp_connect,tcp_write_xmit
struct_inet_connection_sock_af_ops icsk_af_ops read_mostly - tcp_finish_connect,tcp_send_syn_data,tcp_mtup_init,tcp_mtu_check_reprobe,tcp_mtu_probe,tcp_connect_init,tcp_connect,__tcp_transmit_skb
struct_tcp_ulp_ops* icsk_ulp_ops - -
void* icsk_ulp_data - -
u8:5 icsk_ca_state read_write - tcp_cwnd_application_limited,tcp_set_ca_state,tcp_enter_cwr,tcp_tso_should_defer,tcp_mtu_probe,tcp_schedule_loss_probe,tcp_write_xmit,__tcp_transmit_skb
u8:1 icsk_ca_initialized read_write - tcp_init_transfer,tcp_init_congestion_control,tcp_init_transfer,tcp_finish_connect,tcp_connect
u8:1 icsk_ca_setsockopt - -
u8:1 icsk_ca_dst_locked write_mostly - tcp_ca_dst_init,tcp_connect_init,tcp_connect
u8 icsk_retransmits write_mostly - tcp_connect_init,tcp_connect
u8 icsk_pending read_write - inet_csk_reset_xmit_timer,tcp_connect,tcp_check_probe_timer,__tcp_push_pending_frames,tcp_rearm_rto,tcp_event_new_data_sent,tcp_event_new_data_sent
u8 icsk_backoff write_mostly - tcp_write_queue_purge,tcp_connect_init
u8 icsk_syn_retries - -
u8 icsk_probes_out - -
u16 icsk_ext_hdr_len read_mostly - __tcp_mtu_to_mss,tcp_mtu_to_rss,tcp_mtu_probe,tcp_write_xmit,tcp_mtu_to_mss,
struct_icsk_ack_u8 pending read_write read_write inet_csk_ack_scheduled,__tcp_cleanup_rbuf,tcp_cleanup_rbuf,inet_csk_clear_xmit_timer,tcp_event_ack-sent,inet_csk_reset_xmit_timer
struct_icsk_ack_u8 quick read_write write_mostly tcp_dec_quickack_mode,tcp_event_ack_sent,__tcp_transmit_skb,__tcp_select_window,__tcp_cleanup_rbuf
struct_icsk_ack_u8 pingpong - -
struct_icsk_ack_u8 retry write_mostly read_write inet_csk_clear_xmit_timer,tcp_rearm_rto,tcp_event_new_data_sent,tcp_write_xmit,__tcp_send_ack,tcp_send_ack,
struct_icsk_ack_u8 ato read_mostly write_mostly tcp_dec_quickack_mode,tcp_event_ack_sent,__tcp_transmit_skb,__tcp_send_ack,tcp_send_ack
struct_icsk_ack_unsigned_long timeout read_write read_write inet_csk_reset_xmit_timer,tcp_connect
struct_icsk_ack_u32 lrcvtime read_write - tcp_finish_connect,tcp_connect,tcp_event_data_sent,__tcp_transmit_skb
struct_icsk_ack_u16 rcv_mss write_mostly read_mostly __tcp_select_window,__tcp_cleanup_rbuf,tcp_initialize_rcv_mss,tcp_connect_init
struct_icsk_mtup_int search_high read_write - tcp_mtup_init,tcp_sync_mss,tcp_connect_init,tcp_mtu_check_reprobe,tcp_write_xmit
struct_icsk_mtup_int search_low read_write - tcp_mtu_probe,tcp_mtu_check_reprobe,tcp_write_xmit,tcp_sync_mss,tcp_connect_init,tcp_mtup_init
struct_icsk_mtup_u32:31 probe_size read_write - tcp_mtup_init,tcp_connect_init,__tcp_transmit_skb
struct_icsk_mtup_u32:1 enabled read_write - tcp_mtup_init,tcp_sync_mss,tcp_connect_init,tcp_mtu_probe,tcp_write_xmit
struct_icsk_mtup_u32 probe_timestamp read_write - tcp_mtup_init,tcp_connect_init,tcp_mtu_check_reprobe,tcp_mtu_probe
u32 icsk_probes_tstamp - -
u32 icsk_user_timeout - -
u64[104/sizeof(u64)] icsk_ca_priv - -
43 changes: 43 additions & 0 deletions Documentation/networking/net_cachelines/inet_sock.rst
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.. SPDX-License-Identifier: GPL-2.0
.. Copyright (C) 2023 Google LLC
=====================================================
inet_connection_sock struct fast path usage breakdown
=====================================================

Type Name fastpath_tx_access fastpath_rx_access comment
..struct ..inet_sock
struct_sock sk read_mostly read_mostly tcp_init_buffer_space,tcp_init_transfer,tcp_finish_connect,tcp_connect,tcp_send_rcvq,tcp_send_syn_data
struct_ipv6_pinfo* pinet6 - -
be16 inet_sport read_mostly - __tcp_transmit_skb
be32 inet_daddr read_mostly - ip_select_ident_segs
be32 inet_rcv_saddr - -
be16 inet_dport read_mostly - __tcp_transmit_skb
u16 inet_num - -
be32 inet_saddr - -
s16 uc_ttl read_mostly - __ip_queue_xmit/ip_select_ttl
u16 cmsg_flags - -
struct_ip_options_rcu* inet_opt read_mostly - __ip_queue_xmit
u16 inet_id read_mostly - ip_select_ident_segs
u8 tos read_mostly - ip_queue_xmit
u8 min_ttl - -
u8 mc_ttl - -
u8 pmtudisc - -
u8:1 recverr - -
u8:1 is_icsk - -
u8:1 freebind - -
u8:1 hdrincl - -
u8:1 mc_loop - -
u8:1 transparent - -
u8:1 mc_all - -
u8:1 nodefrag - -
u8:1 bind_address_no_port - -
u8:1 recverr_rfc4884 - -
u8:1 defer_connect read_mostly - tcp_sendmsg_fastopen
u8 rcv_tos - -
u8 convert_csum - -
int uc_index - -
int mc_index - -
be32 mc_addr - -
struct_ip_mc_socklist* mc_list - -
struct_inet_cork_full cork read_mostly - __tcp_transmit_skb
struct local_port_range - -
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