/* SPDX-License-Identifier: GPL-2.0-or-later */ #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 <[email protected]> * Copyright (c) 2005 Arnaldo Carvalho de Melo <[email protected]> * Copyright (c) 2003 Nils-Erik Mattsson, Joacim Haggmark, Magnus Erixzon */ #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 { … }; /** 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 { … }; #endif /* _LINUX_TFRC_H_ */
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