STRUCT BATADV_TP_SENDER_CC(9)

💅 struct batadv_tp_sender_cc(9) — like, the whole vibe

okay bestie, so this page lives in the Kernel API Manual and it's literally all about struct batadv_tp_sender_cc — the lil bundle of congestion control variables. no cap, that's the entire personality. 🎀

✨ NAME ✨

struct batadv_tp_sender_cc — congestion control variables 🦋

🌸 SYNOPSIS 🌸

here's the shape of it, and yes every field matters so pls don't skip:

struct batadv_tp_sender_cc {
    bool fast_recovery:1;
    u8 dup_acks;
    u16 dec_cwnd;
    u32 cwnd;
    u32 ss_threshold;
    u32 last_acked;
    u32 last_sent;
    u32 recover;
    u32 rto;
    u32 srtt;
    u32 rttvar;
 };

👑 Members 👑

• fast_recovery — true if we're in Fast Recovery mode. that's it, that's the flag 💅
• dup_acks — the duplicate ACKs counter, keeping tally fr
• dec_cwnd — the decimal part of the cwnd that gets used during linear growth (yes, decimal part, she's precise)
• cwnd — current size of the congestion window, the main character honestly 👑
• ss_threshold — the Slow Start threshold. the moment cwnd exceeds this value, the connection switches to the Congestion Avoidance state. periodt. ⭐
• last_acked — last acked byte
• last_sent — last sent byte, not yet acked (she's out there, unconfirmed 😭)
• recover — the last sent seqno when entering Fast Recovery
• rto — sender timeout
• srtt — smoothed RTT scaled by 2^3
• rttvar — RTT variation scaled by 2^2

🫶 SEE ALSO 🫶

kernel file ./net/batman-adv/types.h, plus the entire extended friend group — literally the whole cast, no one left out:

• batadv_dat_addr_t(9)
• enum batadv_dhcp_recipient(9)
• BATADV_TT_REMOTE_MASK(9)
• BATADV_TT_SYNC_MASK(9)
• struct batadv_ogm_buf(9)
• struct batadv_hard_iface_bat_iv(9)
• enum batadv_v_hard_iface_flags(9)
• struct batadv_hard_iface_bat_v(9)
• enum batadv_hard_iface_wifi_flags(9)
• struct batadv_wifi_net_device_state(9)
• struct batadv_hard_iface(9)
• struct batadv_orig_ifinfo_bat_iv(9)
• struct batadv_orig_ifinfo(9)
• struct batadv_frag_table_entry(9)
• struct batadv_frag_list_entry(9)
• struct batadv_vlan_tt(9)
• struct batadv_orig_node_vlan(9)
• struct batadv_orig_bat_iv(9)
• struct batadv_orig_node(9)
• enum batadv_orig_capabilities(9)
• struct batadv_gw_node(9)
• struct batadv_hardif_neigh_node_bat_v(9)
• struct batadv_hardif_neigh_node(9)
• struct batadv_neigh_node(9)
• struct batadv_neigh_ifinfo_bat_iv(9)
• struct batadv_neigh_ifinfo_bat_v(9)
• struct batadv_neigh_ifinfo(9)
• struct batadv_bcast_duplist_entry(9)
• enum batadv_counters(9)
• struct batadv_priv_tt(9)
• struct batadv_priv_bla(9)
• struct batadv_priv_gw(9)
• struct batadv_priv_tvlv(9)
• struct batadv_priv_dat(9)
• struct batadv_mcast_querier_state(9)
• struct batadv_mcast_mla_flags(9)
• struct batadv_priv_mcast(9)
• struct batadv_tp_unacked(9)
• struct batadv_tp_vars_common(9)
• struct batadv_tp_sender(9)
• struct batadv_tp_receiver(9)
• struct batadv_meshif_vlan(9)
• struct batadv_priv_bat_v(9)
• struct batadv_priv(9)
• enum batadv_bla_backbone_gw_state(9)
• struct batadv_bla_backbone_gw(9)
• struct batadv_bla_claim(9)
• struct batadv_tt_common_entry(9)
• struct batadv_tt_local_entry(9)
• struct batadv_tt_global_entry(9)
• struct batadv_tt_orig_list_entry(9)
• struct batadv_tt_change_node(9)
• struct batadv_tt_req_node(9)
• struct batadv_tt_roam_node(9)
• struct batadv_skb_cb(9)
• struct batadv_forw_packet(9)
• struct batadv_algo_iface_ops(9)
• struct batadv_algo_neigh_ops(9)
• struct batadv_algo_orig_ops(9)
• struct batadv_algo_gw_ops(9)
• struct batadv_algo_ops(9)
• struct batadv_dat_entry(9)
• struct batadv_hw_addr(9)
• struct batadv_dat_candidate(9)
• struct batadv_tvlv_container(9)
• struct batadv_tvlv_handler(9)
• enum batadv_tvlv_handler_flags(9)

and that's the whole thing, bestie 🧚 ok bye, mwah 💖 this one came from ./net/batman-adv, dated October 2026, and it's filed under struct batadv_tp_sender_cc(9) — iykyk 💜