cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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tfrc.h (1722B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2#ifndef _LINUX_TFRC_H_
      3#define _LINUX_TFRC_H_
      4/*
      5 *  TFRC - Data Structures for the TCP-Friendly Rate Control congestion
      6 *         control mechanism as specified in RFC 3448.
      7 *
      8 *  Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
      9 *  Copyright (c) 2005 Ian McDonald <iam4@cs.waikato.ac.nz>
     10 *  Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
     11 *  Copyright (c) 2003 Nils-Erik Mattsson, Joacim Haggmark, Magnus Erixzon
     12 */
     13#include <linux/types.h>
     14
     15/** 	tfrc_rx_info    -    TFRC Receiver Data Structure
     16 *
     17 * 	@tfrcrx_x_recv:	receiver estimate of sending rate (3.2.2)
     18 * 	@tfrcrx_rtt:	round-trip-time (communicated by sender)
     19 * 	@tfrcrx_p:	current estimate of loss event rate (3.2.2)
     20 */
     21struct tfrc_rx_info {
     22  	__u32 tfrcrx_x_recv;
     23	__u32 tfrcrx_rtt;
     24  	__u32 tfrcrx_p;
     25};
     26
     27/** 	tfrc_tx_info    -    TFRC Sender Data Structure
     28 *
     29 * 	@tfrctx_x:	computed transmit rate (4.3 (4))
     30 * 	@tfrctx_x_recv: receiver estimate of send rate (4.3)
     31 * 	@tfrctx_x_calc:	return value of throughput equation (3.1)
     32 * 	@tfrctx_rtt:	(moving average) estimate of RTT (4.3)
     33 * 	@tfrctx_p:	current loss event rate (5.4)
     34 * 	@tfrctx_rto:	estimate of RTO, equals 4*RTT (4.3)
     35 * 	@tfrctx_ipi:	inter-packet interval (4.6)
     36 *
     37 *  Note: X and X_recv are both maintained in units of 64 * bytes/second. This
     38 *        enables a finer resolution of sending rates and avoids problems with
     39 *        integer arithmetic; u32 is not sufficient as scaling consumes 6 bits.
     40 */
     41struct tfrc_tx_info {
     42	__u64 tfrctx_x;
     43	__u64 tfrctx_x_recv;
     44	__u32 tfrctx_x_calc;
     45	__u32 tfrctx_rtt;
     46	__u32 tfrctx_p;
     47	__u32 tfrctx_rto;
     48	__u32 tfrctx_ipi;
     49};
     50
     51#endif /* _LINUX_TFRC_H_ */