update qos-scripts to v1.1 - rewritten hfsc rate calculation
SVN-Revision: 6875
This commit is contained in:
Felix Fietkau
parent
c6aa5d159d
commit
c993ad73be
7 changed files with 158 additions and 154 deletions
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@ -9,7 +9,7 @@
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include $(TOPDIR)/rules.mk
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PKG_NAME:=qos-scripts
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PKG_VERSION:=0.9.4
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PKG_VERSION:=1.1.0
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PKG_RELEASE:=1
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PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
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@ -60,35 +60,29 @@ config classgroup "Default"
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config class "Priority"
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option packetsize 300
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option packetdelay 10
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option packetsize 400
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option maxsize 400
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option avgrate 40
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option linksharing 75
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option avgrate 10
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option priority 20
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config class "Priority_down"
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option packetsize 1500
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option avgrate 20
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option packetsize 1000
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option avgrate 10
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config class "Express"
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option packetsize 1300
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option packetdelay 15
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option packetsize 1000
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option maxsize 800
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option avgrate 30
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option linksharing 80
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option avgrate 50
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option priority 10
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config class "Normal"
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option packetsize 1500
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option packetdelay 150
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option avgrate 20
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option linksharing 30
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option packetdelay 100
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option avgrate 10
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option priority 5
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config class "Normal_down"
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option avgrate 30
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option avgrate 20
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config class "Bulk"
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option linksharing 10
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config class "Bulk_down"
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option avgrate 15
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option limitrate 85
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option avgrate 1
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option packetdelay 200
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@ -1,2 +1,2 @@
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#!/bin/sh
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[ "$ACTION" = ifup ] && /usr/lib/qos.sh interface "$INTERFACE" | sh
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[ "$ACTION" = ifup ] && /usr/lib/qos/generate.sh interface "$INTERFACE" | sh
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@ -4,7 +4,7 @@
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START=50
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boot() {
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/usr/lib/qos.sh firewall | sh
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/usr/lib/qos/generate.sh firewall | sh
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}
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start() {
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@ -1,4 +1,4 @@
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#!/bin/sh
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qos-stop
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/usr/lib/qos.sh all | sh
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/usr/lib/qos/generate.sh all | sh
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@ -1,8 +1,6 @@
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#!/bin/sh
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. /etc/functions.sh
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insmod="insmod"
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[ -f /sbin/modprobe ] && insmod="modprobe"
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[ -e /etc/functions.sh ] && . /etc/functions.sh || . ./functions.sh
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[ -x /sbin/modprobe ] && insmod="modprobe" || insmod="insmod"
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add_insmod() {
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eval "export isset=\${insmod_$1}"
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@ -12,11 +10,20 @@ add_insmod() {
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esac
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}
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[ -e /etc/config/network ] && {
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# only try to parse network config on openwrt
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find_ifname() {(
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include /lib/network
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scan_interfaces
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config_get "$1" ifname
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)}
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} || {
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find_ifname() {
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echo "Interface not found."
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exit 1
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}
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}
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parse_matching_rule() {
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local var="$1"
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@ -182,110 +189,6 @@ config_cb() {
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esac
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}
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class_main_qdisc() {
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local device="$1"
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awk -f - <<EOF
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BEGIN {
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limit = int("$maxrate")
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m2 = int("$m2")
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dmax = int("$dmax")
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umax = int("$umax")
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share = int("$share")
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if (!(m2 > 0)) {
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dmax = 500
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umax = 1500
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m2 = 10
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rt = 0
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} else {
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rt = 1
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}
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cdata = ""
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pdmax = int (dmax + (umax * 8 / limit))
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if (rt == 1) {
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if (share > 0) cdata = " rt"
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else cdata = " ls"
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if ((umax > 0) && (dmax > 0)) {
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cdata = cdata " umax " umax "b dmax " pdmax "ms"
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}
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cdata = cdata " rate " m2 "kbit"
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}
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if (share > 0) {
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if ((m2 > 0) && (umax > 0) && (dmax > 0)) {
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cdata = cdata " ls umax " umax "b dmax " pdmax "ms rate " share "kbit"
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} else {
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cdata = cdata " ls m1 " share "kbit d 500ms m2 " share "kbit"
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}
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}
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print "tc class add dev $device parent 1:1 classid 1:${classnr}0 hfsc" cdata " ul rate " limit "kbit"
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}
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EOF
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}
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class_leaf_qdisc() {
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local device="$1"
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awk -f - <<EOF
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function qlen(rate, m2, umax, dmax, qb, qr, qt, ql) {
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qlen_min = 5 # minimum queue length
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qlen_base = 1.7 # base value - queueing time in seconds
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qlen_avgr = 0.7 # avgrate modifier
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qlen_dmax = 0.0 # dmax modifier
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# bits in a packet
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qb = 1500
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if ((m2 > 0) && (umax > 0)) qb -= int((1500 - umax) * qlen_pkt)
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qb *= 8
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# rate in bits/s
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qr = rate
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qr -= int((rate - m2) * qlen_avgr)
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qr *= 1024
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# queue time
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qt = qlen_base + qlen_dmax * (dmax / 1000)
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# queue length
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ql = int(qr * qt / qb)
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if (ql < qlen_min) ql = qlen_min
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return ql
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}
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BEGIN {
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sfq_dthresh = 25 # use sfq for download if pktdelay set to this or lower
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limit = int("$maxrate")
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m2 = int("$m2")
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dmax = int("$dmax")
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umax = int("$umax")
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if (!(m2 > 0)) {
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dmax = 500
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umax = 1500
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m2 = 10
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}
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cqlen = ${dl_mode:+2 * }qlen(limit, m2, umax, dmax)
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printf "tc qdisc add dev $device parent 1:${classnr}0 handle ${classnr}00: "
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if (("$dir" != "down") || ((dmax > 0) && (dmax <= sfq_dthresh))) {
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print "sfq perturb 10 limit " cqlen
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} else {
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avpkt = 1200
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if (min < avpkt) min = avpkt
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min = int(limit * 1024 / 8 * 0.1)
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dqb = cqlen * 1500
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max = int(min + (dqb - min) * 0.25)
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burst = int((2 * min + max) / (3 * avpkt))
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print "red min " min " max " max " burst " burst " avpkt " avpkt " limit " dqb " probability 0.04 ecn"
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}
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}
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EOF
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}
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enum_classes() {
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local c="0"
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@ -315,6 +218,15 @@ cls_var() {
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export ${varname}="${tmp:-$default}"
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}
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tcrules() {
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dir=/usr/lib/qos
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[ -e $dir/tcrules.awk ] || dir=.
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echo "$cstr" | awk \
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-v device="$dev" \
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-v linespeed="$rate" \
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-f $dir/tcrules.awk
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}
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start_interface() {
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local iface="$1"
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local num_imq="$2"
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@ -331,7 +243,7 @@ start_interface() {
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for dir in up${halfduplex} ${download:+down}; do
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case "$dir" in
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up)
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upload=$(($upload * 98 / 100 - 10))
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upload=$(($upload * 98 / 100 - (32 * 128 / $upload)))
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dev="$device"
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rate="$upload"
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dl_mode=""
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@ -340,7 +252,7 @@ start_interface() {
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down)
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add_insmod imq numdevs="$num_imq"
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config_get imqdev "$iface" imqdev
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download=$(($download * 96 / 100 - 64))
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download=$(($download * 98 / 100 - (100 * 1024 / $download)))
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dev="imq$imqdev"
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rate="$download"
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dl_mode=1
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@ -348,22 +260,17 @@ start_interface() {
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;;
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*) continue;;
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esac
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cstr=
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for class in $classes; do
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cls_var umax "$class" packetsize $dir 1500
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cls_var dmax "$class" packetdelay $dir 500
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cls_var pktsize "$class" packetsize $dir 1500
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cls_var pktdelay "$class" packetdelay $dir 0
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cls_var maxrate "$class" limitrate $dir 100
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cls_var share "$class" linksharing $dir 0
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cls_var m2 "$class" avgrate $dir 0
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maxrate=$(($maxrate * $rate / 100))
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share=$(($share * $rate / 100))
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m2=$(($m2 * $rate / 100))
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cls_var prio "$class" priority $dir 1
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cls_var avgrate "$class" avgrate $dir 0
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config_get classnr "$class" classnr
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append ${prefix}q "$(class_main_qdisc "$dev" "$iface")" "$N"
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append ${prefix}l "$(class_leaf_qdisc "$dev" "$iface")" "$N"
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append ${prefix}f "tc filter add dev $dev parent 1: prio $classnr protocol ip handle $classnr fw flowid 1:${classnr}0" "$N"
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append cstr "$classnr:$prio:$avgrate:$pktsize:$pktdelay:$maxrate" "$N"
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done
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append ${prefix}q "$(tcrules)" "$N"
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export dev_${dir}="ifconfig $dev up txqueuelen 5 >&- 2>&-
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tc qdisc del dev $dev root >&- 2>&-
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tc qdisc add dev $dev root handle 1: hfsc default ${class_default}0
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@ -373,11 +280,10 @@ tc class add dev $dev parent 1: classid 1:1 hfsc sc rate ${rate}kbit ul rate ${r
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add_insmod sch_hfsc
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add_insmod sch_sfq
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add_insmod sch_red
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cat <<EOF
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${INSMOD:+$INSMOD$N}${dev_up:+$dev_up
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$clsq
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$clsl
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$clsf
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}${imqdev:+$dev_down
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$d_clsq
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$d_clsl
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@ -471,7 +377,10 @@ EOF
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C="0"
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INTERFACES=""
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config_load qos
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[ -e ./qos.conf ] && {
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. ./qos.conf
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config_cb
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} || config_load qos
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C="0"
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for iface in $INTERFACES; do
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101
package/qos-scripts/files/usr/lib/qos/tcrules.awk
Normal file
101
package/qos-scripts/files/usr/lib/qos/tcrules.awk
Normal file
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@ -0,0 +1,101 @@
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BEGIN {
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dmax=100
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if (!(linespeed > 0)) linespeed = 128
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FS=":"
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n = 0
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}
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($1 != "") {
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n++
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class[n] = $1
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prio[n] = $2
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avgrate[n] = ($3 * linespeed / 100)
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pktsize[n] = $4
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delay[n] = $5
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maxrate[n] = ($6 * linespeed / 100)
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}
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END {
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allocated = 0
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maxdelay = 0
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for (i = 1; i <= n; i++) {
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# set defaults
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if (!(pktsize[i] > 0)) pktsize[i] = 1500
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if (!(prio[i] > 0)) prio[i] = 1
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allocated += avgrate[i]
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sum_prio += prio[i]
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if ((avgrate[i] > 0) && !(delay[i] > 0)) {
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sum_rtprio += prio[i]
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}
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}
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# allocation of m1 in rt classes:
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# sum(d * m1) must not exceed dmax * (linespeed - allocated)
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dmax = 0
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for (i = 1; i <= n; i++) {
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if (avgrate[i] > 0) {
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rtm2[i] = avgrate[i]
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if (delay[i] > 0) {
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d[i] = delay[i]
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} else {
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d[i] = 2 * pktsize[i] * 1000 / (linespeed * 1024)
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if (d[i] > dmax) dmax = d[i]
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}
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}
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}
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ds_avail = dmax * (linespeed - allocated)
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for (i = 1; i <= n; i++) {
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lsm1[i] = 0
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rtm1[i] = 0
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lsm2[i] = linespeed * prio[i] / sum_prio
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if ((avgrate[i] > 0) && (d[i] > 0)) {
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if (!(delay[i] > 0)) {
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ds = ds_avail * prio[i] / sum_rtprio
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ds_avail -= ds
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rtm1[i] = rtm2[i] + ds/d[i]
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}
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lsm1[i] = rtm1[i]
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}
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else {
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d[i] = 0
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}
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}
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# main qdisc
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for (i = 1; i <= n; i++) {
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printf "tc class add dev "device" parent 1:1 classid 1:"class[i]"0 hfsc"
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if (rtm1[i] > 0) {
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printf " rt m1 " int(rtm1[i]) "kbit d " int(d[i] * 1000) "us m2 " int(rtm2[i])"kbit"
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}
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printf " ls m1 " int(lsm1[i]) "kbit d " int(d[i] * 1000) "us m2 " int(lsm2[i]) "kbit"
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print " ul rate " int(maxrate[i]) "kbit"
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}
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# leaf qdisc
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avpkt = 1200
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for (i = 1; i <= n; i++) {
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ql = int((avgrate[i] + linespeed) * 1024 / (8 * pktsize[i]))
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printf "tc qdisc add dev "device" parent 1:"class[i]"0 handle "class[i]"00: "
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if (rtm1[i] > 0) {
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# rt class - use sfq
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print "sfq perturb 2 limit " ql
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} else {
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# non-rt class - use red
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min = int(maxrate[i] * 1024 / 8 * 0.05)
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if (min < avpkt) min = avpkt
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dqb = 8 * min;
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max = int(2.1*min)
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rburst = int((1.5*min + max) / (3 * avpkt))
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print "red min " min " max " max " burst " rburst " avpkt " avpkt " limit " dqb " probability 0.04 ecn"
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}
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}
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# filter rule
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for (i = 1; i <= n; i++) {
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print "tc filter add dev "device" parent 1: prio "class[i]" protocol ip handle "class[i]" fw flowid 1:"class[i] "0"
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}
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}
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