#ifndef _TFRC_H_ #define _TFRC_H_ /* * Copyright (c) 2007 The University of Aberdeen, Scotland, UK * Copyright (c) 2005-6 The University of Waikato, Hamilton, New Zealand. * Copyright (c) 2005-6 Ian McDonald <ian.mcdonald@jandi.co.nz> * Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br> * Copyright (c) 2003 Nils-Erik Mattsson, Joacim Haggmark, Magnus Erixzon * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ #include <linux/types.h> #include <linux/math64.h> #include "../../dccp.h" /* internal includes that this library exports: */ #include "loss_interval.h" #include "packet_history.h" #ifdef CONFIG_IP_DCCP_TFRC_DEBUG extern bool tfrc_debug; #define tfrc_pr_debug(format, a...) DCCP_PR_DEBUG(tfrc_debug, format, ##a) #else #define tfrc_pr_debug(format, a...) #endif /* integer-arithmetic divisions of type (a * 1000000)/b */ static inline u64 scaled_div(u64 a, u64 b) { BUG_ON(b == 0); return div64_u64(a * 1000000, b); } static inline u32 scaled_div32(u64 a, u64 b) { u64 result = scaled_div(a, b); if (result > UINT_MAX) { DCCP_CRIT("Overflow: %llu/%llu > UINT_MAX", (unsigned long long)a, (unsigned long long)b); return UINT_MAX; } return result; } /** * tfrc_ewma - Exponentially weighted moving average * @weight: Weight to be used as damping factor, in units of 1/10 */ static inline u32 tfrc_ewma(const u32 avg, const u32 newval, const u8 weight) { return avg ? (weight * avg + (10 - weight) * newval) / 10 : newval; } u32 tfrc_calc_x(u16 s, u32 R, u32 p); u32 tfrc_calc_x_reverse_lookup(u32 fvalue); u32 tfrc_invert_loss_event_rate(u32 loss_event_rate); int tfrc_tx_packet_history_init(void); void tfrc_tx_packet_history_exit(void); int tfrc_rx_packet_history_init(void); void tfrc_rx_packet_history_exit(void); int tfrc_li_init(void); void tfrc_li_exit(void); #ifdef CONFIG_IP_DCCP_TFRC_LIB int tfrc_lib_init(void); void tfrc_lib_exit(void); #else #define tfrc_lib_init() (0) #define tfrc_lib_exit() #endif #endif /* _TFRC_H_ */ </option> <option value='committer'>committer</option> <option value='range'>range</option> </select> <input class='txt' type='search' size='10' name='q' value=''/> <input type='submit' value='search'/> </form> </td></tr></table> <div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='32e19300a4f6705e79354cdadac3b2ef3cd0c309'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=32e19300a4f6705e79354cdadac3b2ef3cd0c309'>Diffstat</a></div><table summary='diffstat' class='diffstat'>