f79aab1866
right mix. Still may need some tweaks but it appears to almost not give away too much to an RFC2581 flow, but can really minimize the amount of buffers used in the net. MFC after: 3 months
230 lines
9.0 KiB
C
230 lines
9.0 KiB
C
/*-
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* Copyright (c) 2008-2011, by Randall Stewart. All rights reserved.
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* Copyright (c) 2008-2011, by Michael Tuexen. 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 are met:
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*
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* a) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* b) Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the distribution.
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*
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* c) Neither the name of Cisco Systems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef __sctp_dtrace_define_h__
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#include "opt_kdtrace.h"
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#include <sys/kernel.h>
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#include <sys/sdt.h>
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SDT_PROVIDER_DEFINE(sctp);
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/********************************************************/
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/* Cwnd probe - tracks changes in the congestion window on a netp */
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/********************************************************/
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/* Initial */
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SDT_PROBE_DEFINE(sctp, cwnd, net, init, init);
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/* The Vtag for this end */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, init, 0, "uint32_t");
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/* The port number of the local side << 16 | port number of remote
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* in network byte order.
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*/
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, init, 1, "uint32_t");
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/* The pointer to the struct sctp_nets * changing */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, init, 2, "uintptr_t");
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/* The old value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, init, 3, "int");
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/* The new value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, init, 4, "int");
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/* ACK-INCREASE */
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SDT_PROBE_DEFINE(sctp, cwnd, net, ack, ack);
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/* The Vtag for this end */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, ack, 0, "uint32_t");
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/* The port number of the local side << 16 | port number of remote
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* in network byte order.
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*/
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, ack, 1, "uint32_t");
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/* The pointer to the struct sctp_nets * changing */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, ack, 2, "uintptr_t");
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/* The old value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, ack, 3, "int");
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/* The new value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, ack, 4, "int");
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/* ACK-INCREASE */
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SDT_PROBE_DEFINE(sctp, cwnd, net, rttvar, rttvar);
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/* The Vtag << 32 | localport << 16 | remoteport */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, rttvar, 0, "uint64_t");
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/* obw | nbw */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, rttvar, 1, "uint64_t");
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/* bwrtt | newrtt */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, rttvar, 2, "uint64_t");
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/* flight */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, rttvar, 3, "uint64_t");
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/* (cwnd << 32) | point << 16 | retval(0/1) */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, rttvar, 4, "uint64_t");
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SDT_PROBE_DEFINE(sctp, cwnd, net, rttstep, rttstep);
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/* The Vtag << 32 | localport << 16 | remoteport */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, rttstep, 0, "uint64_t");
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/* obw | nbw */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, rttstep, 1, "uint64_t");
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/* bwrtt | nrtt */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, rttstep, 2, "uint64_t");
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/* cwnd_saved | stepcnt << 16 | oldstep */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, rttstep, 3, "uint64_t");
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/* (cwnd << 32) | point << 16 | retval(0/1) */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, rttstep, 4, "uint64_t");
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/* FastRetransmit-DECREASE */
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SDT_PROBE_DEFINE(sctp, cwnd, net, fr, fr);
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/* The Vtag for this end */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, fr, 0, "uint32_t");
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/* The port number of the local side << 16 | port number of remote
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* in network byte order.
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*/
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, fr, 1, "uint32_t");
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/* The pointer to the struct sctp_nets * changing */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, fr, 2, "uintptr_t");
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/* The old value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, fr, 3, "int");
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/* The new value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, fr, 4, "int");
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/* TimeOut-DECREASE */
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SDT_PROBE_DEFINE(sctp, cwnd, net, to, to);
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/* The Vtag for this end */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, to, 0, "uint32_t");
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/* The port number of the local side << 16 | port number of remote
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* in network byte order.
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*/
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, to, 1, "uint32_t");
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/* The pointer to the struct sctp_nets * changing */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, to, 2, "uintptr_t");
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/* The old value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, to, 3, "int");
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/* The new value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, to, 4, "int");
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/* BurstLimit-DECREASE */
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SDT_PROBE_DEFINE(sctp, cwnd, net, bl, bl);
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/* The Vtag for this end */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, bl, 0, "uint32_t");
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/* The port number of the local side << 16 | port number of remote
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* in network byte order.
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*/
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, bl, 1, "uint32_t");
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/* The pointer to the struct sctp_nets * changing */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, bl, 2, "uintptr_t");
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/* The old value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, bl, 3, "int");
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/* The new value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, bl, 4, "int");
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/* ECN-DECREASE */
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SDT_PROBE_DEFINE(sctp, cwnd, net, ecn, ecn);
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/* The Vtag for this end */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, ecn, 0, "uint32_t");
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/* The port number of the local side << 16 | port number of remote
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* in network byte order.
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*/
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, ecn, 1, "uint32_t");
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/* The pointer to the struct sctp_nets * changing */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, ecn, 2, "uintptr_t");
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/* The old value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, ecn, 3, "int");
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/* The new value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, ecn, 4, "int");
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/* PacketDrop-DECREASE */
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SDT_PROBE_DEFINE(sctp, cwnd, net, pd, pd);
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/* The Vtag for this end */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, pd, 0, "uint32_t");
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/* The port number of the local side << 16 | port number of remote
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* in network byte order.
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*/
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, pd, 1, "uint32_t");
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/* The pointer to the struct sctp_nets * changing */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, pd, 2, "uintptr_t");
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/* The old value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, pd, 3, "int");
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/* The new value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, cwnd, net, pd, 4, "int");
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/********************************************************/
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/* Rwnd probe - tracks changes in the receiver window for an assoc */
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/********************************************************/
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SDT_PROBE_DEFINE(sctp, rwnd, assoc, val, val);
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/* The Vtag for this end */
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SDT_PROBE_ARGTYPE(sctp, rwnd, assoc, val, 0, "uint32_t");
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/* The port number of the local side << 16 | port number of remote
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* in network byte order.
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*/
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SDT_PROBE_ARGTYPE(sctp, rwnd, assoc, val, 1, "uint32_t");
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/* The up/down amount */
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SDT_PROBE_ARGTYPE(sctp, rwnd, assoc, val, 2, "int");
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/* The new value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, rwnd, assoc, val, 3, "int");
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/********************************************************/
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/* flight probe - tracks changes in the flight size on a net or assoc */
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/********************************************************/
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SDT_PROBE_DEFINE(sctp, flightsize, net, val, val);
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/* The Vtag for this end */
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SDT_PROBE_ARGTYPE(sctp, flightsize, net, val, 0, "uint32_t");
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/* The port number of the local side << 16 | port number of remote
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* in network byte order.
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*/
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SDT_PROBE_ARGTYPE(sctp, flightsize, net, val, 1, "uint32_t");
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/* The pointer to the struct sctp_nets * changing */
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SDT_PROBE_ARGTYPE(sctp, flightsize, net, val, 2, "uintptr_t");
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/* The up/down amount */
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SDT_PROBE_ARGTYPE(sctp, flightsize, net, val, 3, "int");
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/* The new value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, flightsize, net, val, 4, "int");
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/********************************************************/
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/* The total flight version */
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/********************************************************/
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SDT_PROBE_DEFINE(sctp, flightsize, assoc, val, val);
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/* The Vtag for this end */
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SDT_PROBE_ARGTYPE(sctp, flightsize, assoc, val, 0, "uint32_t");
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/* The port number of the local side << 16 | port number of remote
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* in network byte order.
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*/
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SDT_PROBE_ARGTYPE(sctp, flightsize, assoc, val, 1, "uint32_t");
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/* The up/down amount */
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SDT_PROBE_ARGTYPE(sctp, flightsize, assoc, val, 2, "int");
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/* The new value of the cwnd */
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SDT_PROBE_ARGTYPE(sctp, flightsize, assoc, val, 3, "int");
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#endif
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