net/dccp/ccids/lib/loss_interval.h

   1 #ifndef _DCCP_LI_HIST_
   2 #define _DCCP_LI_HIST_
   3 /*
   4  *  net/dccp/ccids/lib/loss_interval.h
   5  *
   6  *  Copyright (c) 2005-7 The University of Waikato, Hamilton, New Zealand.
   7  *  Copyright (c) 2005-7 Ian McDonald <ian.mcdonald@jandi.co.nz>
   8  *  Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
   9  *
  10  *  This program is free software; you can redistribute it and/or modify it
  11  *  under the terms of the GNU General Public License as published by the Free
  12  *  Software Foundation; either version 2 of the License, or (at your option)
  13  *  any later version.
  14  */
  15
  16 #include <linux/list.h>
  17 #include <linux/slab.h>
  18 #include <linux/time.h>
  19
  20 #define DCCP_LI_HIST_IVAL_F_LENGTH  8
  21
  22 struct dccp_li_hist_entry {
  23         struct list_head dccplih_node;
  24         u64              dccplih_seqno:48,
  25                          dccplih_win_count:4;
  26         u32              dccplih_interval;
  27 };
  28
  29 extern void dccp_li_hist_purge(struct list_head *list);
  30
  31 extern u32 dccp_li_hist_calc_i_mean(struct list_head *list);
  32
  33 extern void dccp_li_update_li(struct sock *sk,
  34                               struct list_head *li_hist_list,
  35                               struct list_head *hist_list,
  36                               struct timeval *last_feedback, u16 s,
  37                               u32 bytes_recv, u32 previous_x_recv,
  38                               u64 seq_loss, u8 win_loss);
  39 #endif /* _DCCP_LI_HIST_ */