From: Felix Fietkau Date: Fri, 6 Apr 2007 16:59:56 +0000 (+0000) Subject: update qos-scripts to v1.1 - rewritten hfsc rate calculation X-Git-Tag: kamikaze_7.06~273 X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c993ad73be467282f04a53e112cbd535498f2226;p=openwrt%2Fsvn-archive%2Fopenwrt.git update qos-scripts to v1.1 - rewritten hfsc rate calculation SVN-Revision: 6875 --- diff --git a/package/qos-scripts/Makefile b/package/qos-scripts/Makefile index 78a8cc2563..43225f919f 100644 --- a/package/qos-scripts/Makefile +++ b/package/qos-scripts/Makefile @@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk PKG_NAME:=qos-scripts -PKG_VERSION:=0.9.4 +PKG_VERSION:=1.1.0 PKG_RELEASE:=1 PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME) diff --git a/package/qos-scripts/files/etc/config/qos b/package/qos-scripts/files/etc/config/qos index 1bf991766c..7d3501cc6e 100644 --- a/package/qos-scripts/files/etc/config/qos +++ b/package/qos-scripts/files/etc/config/qos @@ -60,35 +60,29 @@ config classgroup "Default" config class "Priority" - option packetsize 300 - option packetdelay 10 + option packetsize 400 option maxsize 400 - option avgrate 40 - option linksharing 75 + option avgrate 10 + option priority 20 config class "Priority_down" - option packetsize 1500 - option avgrate 20 + option packetsize 1000 + option avgrate 10 config class "Express" - option packetsize 1300 - option packetdelay 15 + option packetsize 1000 option maxsize 800 - option avgrate 30 - option linksharing 80 - + option avgrate 50 + option priority 10 config class "Normal" option packetsize 1500 - option packetdelay 150 - option avgrate 20 - option linksharing 30 + option packetdelay 100 + option avgrate 10 + option priority 5 config class "Normal_down" - option avgrate 30 - + option avgrate 20 config class "Bulk" - option linksharing 10 -config class "Bulk_down" - option avgrate 15 - option limitrate 85 + option avgrate 1 + option packetdelay 200 diff --git a/package/qos-scripts/files/etc/hotplug.d/iface/10-qos b/package/qos-scripts/files/etc/hotplug.d/iface/10-qos index 0682db145c..8537297f9f 100755 --- a/package/qos-scripts/files/etc/hotplug.d/iface/10-qos +++ b/package/qos-scripts/files/etc/hotplug.d/iface/10-qos @@ -1,2 +1,2 @@ #!/bin/sh -[ "$ACTION" = ifup ] && /usr/lib/qos.sh interface "$INTERFACE" | sh +[ "$ACTION" = ifup ] && /usr/lib/qos/generate.sh interface "$INTERFACE" | sh diff --git a/package/qos-scripts/files/etc/init.d/qos b/package/qos-scripts/files/etc/init.d/qos index 4fa42d4a24..3f711155ee 100755 --- a/package/qos-scripts/files/etc/init.d/qos +++ b/package/qos-scripts/files/etc/init.d/qos @@ -4,7 +4,7 @@ START=50 boot() { - /usr/lib/qos.sh firewall | sh + /usr/lib/qos/generate.sh firewall | sh } start() { diff --git a/package/qos-scripts/files/usr/bin/qos-start b/package/qos-scripts/files/usr/bin/qos-start index 347ca46b90..261ffb42b0 100755 --- a/package/qos-scripts/files/usr/bin/qos-start +++ b/package/qos-scripts/files/usr/bin/qos-start @@ -1,4 +1,4 @@ #!/bin/sh qos-stop -/usr/lib/qos.sh all | sh +/usr/lib/qos/generate.sh all | sh diff --git a/package/qos-scripts/files/usr/lib/qos.sh b/package/qos-scripts/files/usr/lib/qos.sh deleted file mode 100755 index 724784ebd0..0000000000 --- a/package/qos-scripts/files/usr/lib/qos.sh +++ /dev/null @@ -1,495 +0,0 @@ -#!/bin/sh -. /etc/functions.sh - -insmod="insmod" -[ -f /sbin/modprobe ] && insmod="modprobe" - -add_insmod() { - eval "export isset=\${insmod_$1}" - case "$isset" in - 1) ;; - *) append INSMOD "$insmod $* >&- 2>&-" "$N"; export insmod_$1=1;; - esac -} - -find_ifname() {( - include /lib/network - scan_interfaces - config_get "$1" ifname -)} - -parse_matching_rule() { - local var="$1" - local section="$2" - local options="$3" - local prefix="$4" - local suffix="$5" - local proto="$6" - local mport="" - local ports="" - - append "$var" "$prefix" "$N" - for option in $options; do - case "$option" in - proto) config_get value "$section" proto; proto="${proto:-$value}";; - esac - done - config_get type "$section" TYPE - case "$type" in - classify) unset pkt; append "$var" "-m mark --mark 0";; - default) pkt=1; append "$var" "-m mark --mark 0";; - reclassify) pkt=1;; - esac - append "$var" "${proto:+-p $proto}" - for option in $options; do - config_get value "$section" "$option" - - case "$pkt:$option" in - *:srchost) - append "$var" "-s $value" - ;; - *:dsthost) - append "$var" "-d $value" - ;; - *:ipp2p) - add_insmod ipt_ipp2p - append "$var" "-m ipp2p" - case "$value" in - all) append "$var" "--edk --dc --kazaa --gnu --bit";; - *) append "$var" "--$value";; - esac - ;; - *:layer7) - add_insmod ipt_layer7 - append "$var" "-m layer7 --l7proto $value${pkt:+ --l7pkt}" - ;; - *:ports|*:srcports|*:dstports) - value="$(echo "$value" | sed -e 's,-,:,g')" - lproto=${lproto:-tcp} - case "$proto" in - ""|tcp|udp) append "$var" "-m ${proto:-tcp -p tcp} -m multiport";; - *) unset "$var"; return 0;; - esac - case "$option" in - ports) - config_set "$section" srcports "" - config_set "$section" dstports "" - config_set "$section" portrange "" - append "$var" "--ports $value" - ;; - srcports) - config_set "$section" ports "" - config_set "$section" dstports "" - config_set "$section" portrange "" - append "$var" "--sports $value" - ;; - dstports) - config_set "$section" ports "" - config_set "$section" srcports "" - config_set "$section" portrange "" - append "$var" "--dports $value" - ;; - esac - ports=1 - ;; - *:portrange) - config_set "$section" ports "" - config_set "$section" srcports "" - config_set "$section" dstports "" - value="$(echo "$value" | sed -e 's,-,:,g')" - case "$proto" in - ""|tcp|udp) append "$var" "-m ${proto:-tcp -p tcp} --sport $value --dport $value";; - *) unset "$var"; return 0;; - esac - ports=1 - ;; - 1:pktsize) - value="$(echo "$value" | sed -e 's,-,:,g')" - add_insmod ipt_length - append "$var" "-m length --length $value" - ;; - 1:limit) - add_insmod ipt_limit - append "$var" "-m limit --limit $value" - ;; - 1:tcpflags) - case "$proto" in - tcp) append "$var" "-m tcp --tcp-flags ALL $value";; - *) unset $var; return 0;; - esac - ;; - 1:mark) - config_get class "${value##!}" classnr - [ -z "$class" ] && continue; - case "$value" in - !*) append "$var" "-m mark ! --mark $class";; - *) append "$var" "-m mark --mark $class";; - esac - esac - done - append "$var" "$suffix" - case "$ports:$proto" in - 1:) parse_matching_rule "$var" "$section" "$options" "$prefix" "$suffix" "udp";; - esac -} - -config_cb() { - option_cb() { - return 0 - } - - # Section start - case "$1" in - interface) - config_set "$1" "classgroup" "Default" - config_set "$1" "upload" "128" - ;; - classify|default|reclassify) - option_cb() { - append options "$1" - } - ;; - esac - - # Section end - config_get TYPE "$CONFIG_SECTION" TYPE - case "$TYPE" in - interface) - config_get enabled "$CONFIG_SECTION" enabled - config_get download "$CONFIG_SECTION" download - config_get classgroup "$CONFIG_SECTION" classgroup - config_set "$CONFIG_SECTION" imqdev "$C" - [ -z "$enabled" -o "$(($enabled))" -eq 0 ] || { - C=$(($C+1)) - INTERFACES="$INTERFACES $CONFIG_SECTION" - config_set "$classgroup" enabled 1 - } - config_get device "$CONFIG_SECTION" device - [ -z "$device" ] && device="$(find_ifname ${CONFIG_SECTION})" - config_set "$CONFIG_SECTION" device "${device:-eth0}" - ;; - classgroup) append CG "$CONFIG_SECTION";; - classify|default|reclassify) - case "$TYPE" in - classify) var="ctrules";; - *) var="rules";; - esac - config_get target "$CONFIG_SECTION" target - config_set "$CONFIG_SECTION" options "$options" - append "$var" "$CONFIG_SECTION" - unset options - ;; - esac -} - -class_main_qdisc() { - local device="$1" - awk -f - < 0)) { - dmax = 500 - umax = 1500 - m2 = 10 - rt = 0 - } else { - rt = 1 - } - - cdata = "" - pdmax = int (dmax + (umax * 8 / limit)) - if (rt == 1) { - if (share > 0) cdata = " rt" - else cdata = " ls" - if ((umax > 0) && (dmax > 0)) { - cdata = cdata " umax " umax "b dmax " pdmax "ms" - } - cdata = cdata " rate " m2 "kbit" - } - if (share > 0) { - if ((m2 > 0) && (umax > 0) && (dmax > 0)) { - cdata = cdata " ls umax " umax "b dmax " pdmax "ms rate " share "kbit" - } else { - cdata = cdata " ls m1 " share "kbit d 500ms m2 " share "kbit" - } - } - - print "tc class add dev $device parent 1:1 classid 1:${classnr}0 hfsc" cdata " ul rate " limit "kbit" -} -EOF -} - -class_leaf_qdisc() { - local device="$1" - awk -f - < 0) && (umax > 0)) qb -= int((1500 - umax) * qlen_pkt) - qb *= 8 - - # rate in bits/s - qr = rate - qr -= int((rate - m2) * qlen_avgr) - qr *= 1024 - - # queue time - qt = qlen_base + qlen_dmax * (dmax / 1000) - - # queue length - ql = int(qr * qt / qb) - if (ql < qlen_min) ql = qlen_min - - return ql -} - -BEGIN { - sfq_dthresh = 25 # use sfq for download if pktdelay set to this or lower - - limit = int("$maxrate") - m2 = int("$m2") - dmax = int("$dmax") - umax = int("$umax") - - if (!(m2 > 0)) { - dmax = 500 - umax = 1500 - m2 = 10 - } - - cqlen = ${dl_mode:+2 * }qlen(limit, m2, umax, dmax) - - printf "tc qdisc add dev $device parent 1:${classnr}0 handle ${classnr}00: " - if (("$dir" != "down") || ((dmax > 0) && (dmax <= sfq_dthresh))) { - print "sfq perturb 10 limit " cqlen - } else { - avpkt = 1200 - if (min < avpkt) min = avpkt - min = int(limit * 1024 / 8 * 0.1) - dqb = cqlen * 1500 - max = int(min + (dqb - min) * 0.25) - burst = int((2 * min + max) / (3 * avpkt)) - - print "red min " min " max " max " burst " burst " avpkt " avpkt " limit " dqb " probability 0.04 ecn" - } -} -EOF -} - -enum_classes() { - local c="0" - config_get classes "$1" classes - config_get default "$1" default - for class in $classes; do - c="$(($c + 1))" - config_set "${class}" classnr $c - case "$class" in - $default) class_default=$c;; - esac - done - class_default="${class_default:-$c}" -} - -cls_var() { - local varname="$1" - local class="$2" - local name="$3" - local type="$4" - local default="$5" - local tmp tmp1 tmp2 - config_get tmp1 "$class" "$name" - config_get tmp2 "${class}_${type}" "$name" - tmp="${tmp2:-$tmp1}" - tmp="${tmp:-$tmp2}" - export ${varname}="${tmp:-$default}" -} - -start_interface() { - local iface="$1" - local num_imq="$2" - config_get device "$iface" device - config_get enabled "$iface" enabled - [ -z "$device" -o -z "$enabled" ] && exit - config_get upload "$iface" upload - config_get halfduplex "$iface" halfduplex - config_get download "$iface" download - config_get classgroup "$iface" classgroup - - download="${download:-${halfduplex:+$upload}}" - enum_classes "$classgroup" - for dir in up${halfduplex} ${download:+down}; do - case "$dir" in - up) - upload=$(($upload * 98 / 100 - 10)) - dev="$device" - rate="$upload" - dl_mode="" - prefix="cls" - ;; - down) - add_insmod imq numdevs="$num_imq" - config_get imqdev "$iface" imqdev - download=$(($download * 96 / 100 - 64)) - dev="imq$imqdev" - rate="$download" - dl_mode=1 - prefix="d_cls" - ;; - *) continue;; - esac - for class in $classes; do - cls_var umax "$class" packetsize $dir 1500 - cls_var dmax "$class" packetdelay $dir 500 - - cls_var maxrate "$class" limitrate $dir 100 - cls_var share "$class" linksharing $dir 0 - cls_var m2 "$class" avgrate $dir 0 - maxrate=$(($maxrate * $rate / 100)) - share=$(($share * $rate / 100)) - m2=$(($m2 * $rate / 100)) - - config_get classnr "$class" classnr - append ${prefix}q "$(class_main_qdisc "$dev" "$iface")" "$N" - append ${prefix}l "$(class_leaf_qdisc "$dev" "$iface")" "$N" - append ${prefix}f "tc filter add dev $dev parent 1: prio $classnr protocol ip handle $classnr fw flowid 1:${classnr}0" "$N" - done - export dev_${dir}="ifconfig $dev up txqueuelen 5 >&- 2>&- -tc qdisc del dev $dev root >&- 2>&- -tc qdisc add dev $dev root handle 1: hfsc default ${class_default}0 -tc class add dev $dev parent 1: classid 1:1 hfsc sc rate ${rate}kbit ul rate ${rate}kbit" - done - add_insmod cls_fw - add_insmod sch_hfsc - add_insmod sch_sfq - add_insmod sch_red - cat <&- 2>&- -iptables -t mangle -N ${cg}_ct >&- 2>&- -${iptrules:+${iptrules}${N}iptables -t mangle -A ${cg}_ct -j CONNMARK --save-mark} -iptables -t mangle -A ${cg} -j CONNMARK --restore-mark -iptables -t mangle -A ${cg} -m mark --mark 0 -j ${cg}_ct -$pktrules -$up$N${down:+${down}$N} -EOF - unset INSMOD -} - -start_firewall() { - add_insmod ipt_multiport - add_insmod ipt_CONNMARK - cat <&- 2>&-" "$N"; export insmod_$1=1;; + esac +} + +[ -e /etc/config/network ] && { + # only try to parse network config on openwrt + + find_ifname() {( + include /lib/network + scan_interfaces + config_get "$1" ifname + )} +} || { + find_ifname() { + echo "Interface not found." + exit 1 + } +} + +parse_matching_rule() { + local var="$1" + local section="$2" + local options="$3" + local prefix="$4" + local suffix="$5" + local proto="$6" + local mport="" + local ports="" + + append "$var" "$prefix" "$N" + for option in $options; do + case "$option" in + proto) config_get value "$section" proto; proto="${proto:-$value}";; + esac + done + config_get type "$section" TYPE + case "$type" in + classify) unset pkt; append "$var" "-m mark --mark 0";; + default) pkt=1; append "$var" "-m mark --mark 0";; + reclassify) pkt=1;; + esac + append "$var" "${proto:+-p $proto}" + for option in $options; do + config_get value "$section" "$option" + + case "$pkt:$option" in + *:srchost) + append "$var" "-s $value" + ;; + *:dsthost) + append "$var" "-d $value" + ;; + *:ipp2p) + add_insmod ipt_ipp2p + append "$var" "-m ipp2p" + case "$value" in + all) append "$var" "--edk --dc --kazaa --gnu --bit";; + *) append "$var" "--$value";; + esac + ;; + *:layer7) + add_insmod ipt_layer7 + append "$var" "-m layer7 --l7proto $value${pkt:+ --l7pkt}" + ;; + *:ports|*:srcports|*:dstports) + value="$(echo "$value" | sed -e 's,-,:,g')" + lproto=${lproto:-tcp} + case "$proto" in + ""|tcp|udp) append "$var" "-m ${proto:-tcp -p tcp} -m multiport";; + *) unset "$var"; return 0;; + esac + case "$option" in + ports) + config_set "$section" srcports "" + config_set "$section" dstports "" + config_set "$section" portrange "" + append "$var" "--ports $value" + ;; + srcports) + config_set "$section" ports "" + config_set "$section" dstports "" + config_set "$section" portrange "" + append "$var" "--sports $value" + ;; + dstports) + config_set "$section" ports "" + config_set "$section" srcports "" + config_set "$section" portrange "" + append "$var" "--dports $value" + ;; + esac + ports=1 + ;; + *:portrange) + config_set "$section" ports "" + config_set "$section" srcports "" + config_set "$section" dstports "" + value="$(echo "$value" | sed -e 's,-,:,g')" + case "$proto" in + ""|tcp|udp) append "$var" "-m ${proto:-tcp -p tcp} --sport $value --dport $value";; + *) unset "$var"; return 0;; + esac + ports=1 + ;; + 1:pktsize) + value="$(echo "$value" | sed -e 's,-,:,g')" + add_insmod ipt_length + append "$var" "-m length --length $value" + ;; + 1:limit) + add_insmod ipt_limit + append "$var" "-m limit --limit $value" + ;; + 1:tcpflags) + case "$proto" in + tcp) append "$var" "-m tcp --tcp-flags ALL $value";; + *) unset $var; return 0;; + esac + ;; + 1:mark) + config_get class "${value##!}" classnr + [ -z "$class" ] && continue; + case "$value" in + !*) append "$var" "-m mark ! --mark $class";; + *) append "$var" "-m mark --mark $class";; + esac + esac + done + append "$var" "$suffix" + case "$ports:$proto" in + 1:) parse_matching_rule "$var" "$section" "$options" "$prefix" "$suffix" "udp";; + esac +} + +config_cb() { + option_cb() { + return 0 + } + + # Section start + case "$1" in + interface) + config_set "$1" "classgroup" "Default" + config_set "$1" "upload" "128" + ;; + classify|default|reclassify) + option_cb() { + append options "$1" + } + ;; + esac + + # Section end + config_get TYPE "$CONFIG_SECTION" TYPE + case "$TYPE" in + interface) + config_get enabled "$CONFIG_SECTION" enabled + config_get download "$CONFIG_SECTION" download + config_get classgroup "$CONFIG_SECTION" classgroup + config_set "$CONFIG_SECTION" imqdev "$C" + [ -z "$enabled" -o "$(($enabled))" -eq 0 ] || { + C=$(($C+1)) + INTERFACES="$INTERFACES $CONFIG_SECTION" + config_set "$classgroup" enabled 1 + } + config_get device "$CONFIG_SECTION" device + [ -z "$device" ] && device="$(find_ifname ${CONFIG_SECTION})" + config_set "$CONFIG_SECTION" device "${device:-eth0}" + ;; + classgroup) append CG "$CONFIG_SECTION";; + classify|default|reclassify) + case "$TYPE" in + classify) var="ctrules";; + *) var="rules";; + esac + config_get target "$CONFIG_SECTION" target + config_set "$CONFIG_SECTION" options "$options" + append "$var" "$CONFIG_SECTION" + unset options + ;; + esac +} + + +enum_classes() { + local c="0" + config_get classes "$1" classes + config_get default "$1" default + for class in $classes; do + c="$(($c + 1))" + config_set "${class}" classnr $c + case "$class" in + $default) class_default=$c;; + esac + done + class_default="${class_default:-$c}" +} + +cls_var() { + local varname="$1" + local class="$2" + local name="$3" + local type="$4" + local default="$5" + local tmp tmp1 tmp2 + config_get tmp1 "$class" "$name" + config_get tmp2 "${class}_${type}" "$name" + tmp="${tmp2:-$tmp1}" + tmp="${tmp:-$tmp2}" + export ${varname}="${tmp:-$default}" +} + +tcrules() { + dir=/usr/lib/qos + [ -e $dir/tcrules.awk ] || dir=. + echo "$cstr" | awk \ + -v device="$dev" \ + -v linespeed="$rate" \ + -f $dir/tcrules.awk +} + +start_interface() { + local iface="$1" + local num_imq="$2" + config_get device "$iface" device + config_get enabled "$iface" enabled + [ -z "$device" -o -z "$enabled" ] && exit + config_get upload "$iface" upload + config_get halfduplex "$iface" halfduplex + config_get download "$iface" download + config_get classgroup "$iface" classgroup + + download="${download:-${halfduplex:+$upload}}" + enum_classes "$classgroup" + for dir in up${halfduplex} ${download:+down}; do + case "$dir" in + up) + upload=$(($upload * 98 / 100 - (32 * 128 / $upload))) + dev="$device" + rate="$upload" + dl_mode="" + prefix="cls" + ;; + down) + add_insmod imq numdevs="$num_imq" + config_get imqdev "$iface" imqdev + download=$(($download * 98 / 100 - (100 * 1024 / $download))) + dev="imq$imqdev" + rate="$download" + dl_mode=1 + prefix="d_cls" + ;; + *) continue;; + esac + cstr= + for class in $classes; do + cls_var pktsize "$class" packetsize $dir 1500 + cls_var pktdelay "$class" packetdelay $dir 0 + cls_var maxrate "$class" limitrate $dir 100 + cls_var prio "$class" priority $dir 1 + cls_var avgrate "$class" avgrate $dir 0 + config_get classnr "$class" classnr + append cstr "$classnr:$prio:$avgrate:$pktsize:$pktdelay:$maxrate" "$N" + done + append ${prefix}q "$(tcrules)" "$N" + export dev_${dir}="ifconfig $dev up txqueuelen 5 >&- 2>&- +tc qdisc del dev $dev root >&- 2>&- +tc qdisc add dev $dev root handle 1: hfsc default ${class_default}0 +tc class add dev $dev parent 1: classid 1:1 hfsc sc rate ${rate}kbit ul rate ${rate}kbit" + done + add_insmod cls_fw + add_insmod sch_hfsc + add_insmod sch_sfq + add_insmod sch_red + + cat <&- 2>&- +iptables -t mangle -N ${cg}_ct >&- 2>&- +${iptrules:+${iptrules}${N}iptables -t mangle -A ${cg}_ct -j CONNMARK --save-mark} +iptables -t mangle -A ${cg} -j CONNMARK --restore-mark +iptables -t mangle -A ${cg} -m mark --mark 0 -j ${cg}_ct +$pktrules +$up$N${down:+${down}$N} +EOF + unset INSMOD +} + +start_firewall() { + add_insmod ipt_multiport + add_insmod ipt_CONNMARK + cat < 0)) linespeed = 128 + FS=":" + n = 0 +} + +($1 != "") { + n++ + class[n] = $1 + prio[n] = $2 + avgrate[n] = ($3 * linespeed / 100) + pktsize[n] = $4 + delay[n] = $5 + maxrate[n] = ($6 * linespeed / 100) +} + +END { + allocated = 0 + maxdelay = 0 + + for (i = 1; i <= n; i++) { + # set defaults + if (!(pktsize[i] > 0)) pktsize[i] = 1500 + if (!(prio[i] > 0)) prio[i] = 1 + + allocated += avgrate[i] + sum_prio += prio[i] + if ((avgrate[i] > 0) && !(delay[i] > 0)) { + sum_rtprio += prio[i] + } + } + + # allocation of m1 in rt classes: + # sum(d * m1) must not exceed dmax * (linespeed - allocated) + dmax = 0 + for (i = 1; i <= n; i++) { + if (avgrate[i] > 0) { + rtm2[i] = avgrate[i] + if (delay[i] > 0) { + d[i] = delay[i] + } else { + d[i] = 2 * pktsize[i] * 1000 / (linespeed * 1024) + if (d[i] > dmax) dmax = d[i] + } + } + } + + ds_avail = dmax * (linespeed - allocated) + for (i = 1; i <= n; i++) { + lsm1[i] = 0 + rtm1[i] = 0 + lsm2[i] = linespeed * prio[i] / sum_prio + if ((avgrate[i] > 0) && (d[i] > 0)) { + if (!(delay[i] > 0)) { + ds = ds_avail * prio[i] / sum_rtprio + ds_avail -= ds + rtm1[i] = rtm2[i] + ds/d[i] + } + lsm1[i] = rtm1[i] + } + else { + d[i] = 0 + } + } + + # main qdisc + for (i = 1; i <= n; i++) { + printf "tc class add dev "device" parent 1:1 classid 1:"class[i]"0 hfsc" + if (rtm1[i] > 0) { + printf " rt m1 " int(rtm1[i]) "kbit d " int(d[i] * 1000) "us m2 " int(rtm2[i])"kbit" + } + printf " ls m1 " int(lsm1[i]) "kbit d " int(d[i] * 1000) "us m2 " int(lsm2[i]) "kbit" + print " ul rate " int(maxrate[i]) "kbit" + } + + # leaf qdisc + avpkt = 1200 + for (i = 1; i <= n; i++) { + ql = int((avgrate[i] + linespeed) * 1024 / (8 * pktsize[i])) + printf "tc qdisc add dev "device" parent 1:"class[i]"0 handle "class[i]"00: " + if (rtm1[i] > 0) { + # rt class - use sfq + print "sfq perturb 2 limit " ql + } else { + # non-rt class - use red + min = int(maxrate[i] * 1024 / 8 * 0.05) + if (min < avpkt) min = avpkt + dqb = 8 * min; + max = int(2.1*min) + rburst = int((1.5*min + max) / (3 * avpkt)) + print "red min " min " max " max " burst " rburst " avpkt " avpkt " limit " dqb " probability 0.04 ecn" + } + } + + # filter rule + for (i = 1; i <= n; i++) { + print "tc filter add dev "device" parent 1: prio "class[i]" protocol ip handle "class[i]" fw flowid 1:"class[i] "0" + } +} +