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4.4.0-1128-aws
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linux
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tfrc.h
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#ifndef _LINUX_TFRC_H_ #define _LINUX_TFRC_H_ /* * TFRC - Data Structures for the TCP-Friendly Rate Control congestion * control mechanism as specified in RFC 3448. * * Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand. * Copyright (c) 2005 Ian McDonald <iam4@cs.waikato.ac.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> /** tfrc_rx_info - TFRC Receiver Data Structure * * @tfrcrx_x_recv: receiver estimate of sending rate (3.2.2) * @tfrcrx_rtt: round-trip-time (communicated by sender) * @tfrcrx_p: current estimate of loss event rate (3.2.2) */ struct tfrc_rx_info { __u32 tfrcrx_x_recv; __u32 tfrcrx_rtt; __u32 tfrcrx_p; }; /** tfrc_tx_info - TFRC Sender Data Structure * * @tfrctx_x: computed transmit rate (4.3 (4)) * @tfrctx_x_recv: receiver estimate of send rate (4.3) * @tfrctx_x_calc: return value of throughput equation (3.1) * @tfrctx_rtt: (moving average) estimate of RTT (4.3) * @tfrctx_p: current loss event rate (5.4) * @tfrctx_rto: estimate of RTO, equals 4*RTT (4.3) * @tfrctx_ipi: inter-packet interval (4.6) * * Note: X and X_recv are both maintained in units of 64 * bytes/second. This * enables a finer resolution of sending rates and avoids problems with * integer arithmetic; u32 is not sufficient as scaling consumes 6 bits. */ struct tfrc_tx_info { __u64 tfrctx_x; __u64 tfrctx_x_recv; __u32 tfrctx_x_calc; __u32 tfrctx_rtt; __u32 tfrctx_p; __u32 tfrctx_rto; __u32 tfrctx_ipi; }; #endif /* _LINUX_TFRC_H_ */