.. SPDX-License-Identifier: GPL-2.0
.. Copyright (C) 2023 Google LLC

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inet_sock struct fast path usage breakdown
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Type                    Name                  fastpath_tx_access  fastpath_rx_access  comment
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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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