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60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/*-
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* Copyright (c) 2017 Tom Jones <tj@enoti.me>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _CC_NEWRENO_H
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#define _CC_NEWRENO_H
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#define CCALGONAME_NEWRENO "newreno"
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struct newreno {
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uint32_t beta;
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uint32_t beta_ecn;
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uint32_t newreno_flags;
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uint32_t css_baseline_minrtt;
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uint32_t css_current_round_minrtt;
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uint32_t css_lastround_minrtt;
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uint32_t css_rttsample_count;
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uint32_t css_entered_at_round;
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uint32_t css_current_round;
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uint32_t css_fas_at_css_entry;
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uint32_t css_lowrtt_fas;
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uint32_t css_last_fas;
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};
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struct cc_newreno_opts {
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int name;
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uint32_t val;
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};
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#define CC_NEWRENO_BETA 1 /* Beta for normal DUP-ACK/Sack recovery */
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#define CC_NEWRENO_BETA_ECN 2 /* ECN Beta for Abe */
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/* Flags values */
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#define CC_NEWRENO_HYSTART_ENABLED 0x0002 /* We can do hystart, a loss removes this flag */
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#define CC_NEWRENO_HYSTART_IN_CSS 0x0004 /* If we enter hystart CSS this flag is set */
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#define CC_NEWRENO_BETA_ECN_ENABLED 0x0020
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#endif /* _CC_NEWRENO_H */
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