website-struct

Struct: tcp_congestion_ops

Status

Regular

• In 4.4: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, u32, s32);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In 4.8: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In 4.10: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*tso_segs_goal)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In 4.13: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*tso_segs_goal)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In 4.15: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*tso_segs_goal)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In 4.18: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In 5.0: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In 5.3: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In 5.4: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In 5.8: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In 5.11: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In 5.13: ✅

  struct tcp_congestion_ops {
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      u32 (*undo_cwnd)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
  };
  

• In 5.15: ✅

  struct tcp_congestion_ops {
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      u32 (*undo_cwnd)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
  };
  

• In 5.19: ✅

  struct tcp_congestion_ops {
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      u32 (*undo_cwnd)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
  };
  

• In 6.2: ✅

  struct tcp_congestion_ops {
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      u32 (*undo_cwnd)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
  };
  

• In 6.5: ✅

  struct tcp_congestion_ops {
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      u32 (*undo_cwnd)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
  };
  

• In 6.8: ✅

  struct tcp_congestion_ops {
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      u32 (*undo_cwnd)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
  };
  

Arch

• In arm64: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In armhf: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In ppc64el: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In riscv64: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

Flavor

• In aws: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In azure: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In gcp: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

• In lowlatency: ✅

  struct tcp_congestion_ops {
      struct list_head list;
      u32 key;
      u32 flags;
      void (*init)(struct sock *);
      void (*release)(struct sock *);
      u32 (*ssthresh)(struct sock *);
      void (*cong_avoid)(struct sock *, u32, u32);
      void (*set_state)(struct sock *, u8);
      void (*cwnd_event)(struct sock *, enum tcp_ca_event);
      void (*in_ack_event)(struct sock *, u32);
      u32 (*undo_cwnd)(struct sock *);
      void (*pkts_acked)(struct sock *, const struct ack_sample *);
      u32 (*min_tso_segs)(struct sock *);
      u32 (*sndbuf_expand)(struct sock *);
      void (*cong_control)(struct sock *, const struct rate_sample *);
      size_t (*get_info)(struct sock *, u32, int *, union tcp_cc_info *);
      char name[16];
      struct module *owner;
  };
  

Differences

Regular

• Changed between 4.4 and 4.8 ⚠️

  • Field type changed. void (*pkts_acked)(struct sock *, u32, s32) ➡️ void (*pkts_acked)(struct sock *, const struct ack_sample *)
• Changed between 4.8 and 4.10 ⚠️

  • Field added. u32 (*tso_segs_goal)(struct sock *)
  • Field added. u32 (*sndbuf_expand)(struct sock *)
  • Field added. void (*cong_control)(struct sock *, const struct rate_sample *)
• No changes between 4.10 and 4.13 ✅
• No changes between 4.13 and 4.15 ✅
• Changed between 4.15 and 4.18 ⚠️

  • Field added. u32 (*min_tso_segs)(struct sock *)
  • Field removed. u32 (*tso_segs_goal)(struct sock *)
• No changes between 4.18 and 5.0 ✅
• No changes between 5.0 and 5.3 ✅
• No changes between 5.3 and 5.4 ✅
• No changes between 5.4 and 5.8 ✅
• No changes between 5.8 and 5.11 ✅
• No changes between 5.11 and 5.13 ✅
• No changes between 5.13 and 5.15 ✅
• No changes between 5.15 and 5.19 ✅
• No changes between 5.19 and 6.2 ✅
• No changes between 6.2 and 6.5 ✅
• No changes between 6.5 and 6.8 ✅

Arch

• No changes between amd64 and arm64 ✅
• No changes between amd64 and armhf ✅
• No changes between amd64 and ppc64el ✅
• No changes between amd64 and riscv64 ✅

Flavor

• No changes between generic and aws ✅
• No changes between generic and azure ✅
• No changes between generic and gcp ✅
• No changes between generic and lowlatency ✅