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rack_bbr_common.h
(4.92 KB)
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sack_filter.h
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tcp_bbr.h
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tcp_rack.h
(17.13 KB)
Editing: rack_bbr_common.h
#ifndef __rack_bbr_common_h__ #define __rack_bbr_common_h__ /*- * Copyright (c) 2016-2020 Netflix, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * __FBSDID("$FreeBSD$"); */ /* Common defines and such used by both RACK and BBR */ /* Special values for mss accounting array */ #define TCP_MSS_ACCT_JUSTRET 0 #define TCP_MSS_ACCT_SNDACK 1 #define TCP_MSS_ACCT_PERSIST 2 #define TCP_MSS_ACCT_ATIMER 60 #define TCP_MSS_ACCT_INPACE 61 #define TCP_MSS_ACCT_LATE 62 #define TCP_MSS_SMALL_SIZE_OFF 63 /* Point where small sizes enter */ #define TCP_MSS_ACCT_SIZE 70 #define TCP_MSS_SMALL_MAX_SIZE_DIV (TCP_MSS_ACCT_SIZE - TCP_MSS_SMALL_SIZE_OFF) #define DUP_ACK_THRESHOLD 3 /* Magic flags for tracing progress events */ #define PROGRESS_DROP 1 #define PROGRESS_UPDATE 2 #define PROGRESS_CLEAR 3 #define PROGRESS_START 4 /* codes for just-return */ #define CTF_JR_SENT_DATA 0 #define CTF_JR_CWND_LIMITED 1 #define CTF_JR_RWND_LIMITED 2 #define CTF_JR_APP_LIMITED 3 #define CTF_JR_ASSESSING 4 #define CTF_JR_PERSISTS 5 #define CTF_JR_PRR 6 /* Compat. */ #define BBR_JR_SENT_DATA CTF_JR_SENT_DATA #define BBR_JR_CWND_LIMITED CTF_JR_CWND_LIMITED #define BBR_JR_RWND_LIMITED CTF_JR_RWND_LIMITED #define BBR_JR_APP_LIMITED CTF_JR_APP_LIMITED #define BBR_JR_ASSESSING CTF_JR_ASSESSING #define BBR_JR_PERSISTS CTF_JR_PERSISTS #define BBR_JR_PRR CTF_JR_PRR /* RTT sample methods */ #define USE_RTT_HIGH 0 #define USE_RTT_LOW 1 #define USE_RTT_AVG 2 #define PACE_MAX_IP_BYTES 65536 #define USECS_IN_SECOND 1000000 #define MSEC_IN_SECOND 1000 #define MS_IN_USEC 1000 #define USEC_TO_MSEC(x) (x / MS_IN_USEC) #define TCP_TS_OVERHEAD 12 /* Overhead of having Timestamps on */ /* Bits per second in bytes per second */ #define FORTY_EIGHT_MBPS 6000000 /* 48 megabits in bytes */ #define THIRTY_MBPS 3750000 /* 30 megabits in bytes */ #define TWENTY_THREE_MBPS 2896000 /* 23 megabits in bytes */ #define FIVETWELVE_MBPS 64000000 /* 512 megabits in bytes */ #define ONE_POINT_TWO_MEG 150000 /* 1.2 megabits in bytes */ #ifdef _KERNEL /* We have only 7 bits in rack so assert its true */ CTASSERT((PACE_TMR_MASK & 0x80) == 0); #ifdef KERN_TLS uint32_t ctf_get_opt_tls_size(struct socket *so, uint32_t rwnd); #endif int ctf_process_inbound_raw(struct tcpcb *tp, struct socket *so, struct mbuf *m, int has_pkt); int ctf_do_queued_segments(struct socket *so, struct tcpcb *tp, int have_pkt); uint32_t ctf_outstanding(struct tcpcb *tp); uint32_t ctf_flight_size(struct tcpcb *tp, uint32_t rc_sacked); int ctf_drop_checks(struct tcpopt *to, struct mbuf *m, struct tcphdr *th, struct tcpcb *tp, int32_t * tlenp, int32_t * thf, int32_t * drop_hdrlen, int32_t * ret_val); void ctf_do_dropafterack(struct mbuf *m, struct tcpcb *tp, struct tcphdr *th, int32_t thflags, int32_t tlen, int32_t * ret_val); void ctf_do_dropwithreset(struct mbuf *m, struct tcpcb *tp, struct tcphdr *th, int32_t rstreason, int32_t tlen); void ctf_do_drop(struct mbuf *m, struct tcpcb *tp); int ctf_process_rst(struct mbuf *m, struct tcphdr *th, struct socket *so, struct tcpcb *tp); void ctf_challenge_ack(struct mbuf *m, struct tcphdr *th, struct tcpcb *tp, int32_t * ret_val); int ctf_ts_check(struct mbuf *m, struct tcphdr *th, struct tcpcb *tp, int32_t tlen, int32_t thflags, int32_t * ret_val); void ctf_calc_rwin(struct socket *so, struct tcpcb *tp); void ctf_do_dropwithreset_conn(struct mbuf *m, struct tcpcb *tp, struct tcphdr *th, int32_t rstreason, int32_t tlen); uint32_t ctf_fixed_maxseg(struct tcpcb *tp); void ctf_log_sack_filter(struct tcpcb *tp, int num_sack_blks, struct sackblk *sack_blocks); uint32_t ctf_decay_count(uint32_t count, uint32_t decay_percentage); int32_t ctf_progress_timeout_check(struct tcpcb *tp, bool log); #endif #endif
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