traffic-pacing-edt: Add HTB shaper script

This is primary to comparing HTB shaper accuracy against EDT

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>

traffic-pacing-edt/tc_htb_shaper.sh

@@ -0,0 +1,84 @@
+#!/bin/bash
+#
+# This HTB shaper setup script is available for easier comparing the
+# accuracy against the EDT solution.
+#
+# Author: Jesper Dangaaard Brouer <netoptimizer@brouer.com>
+# License: GPLv2
+#
+basedir=`dirname $0`
+source ${basedir}/functions.sh
+
+root_check_run_with_sudo "$@"
+
+# Use common parameters
+source ${basedir}/parameters.sh
+
+export TC=/sbin/tc
+
+# It seems measured BW is TCP goodput, but configured BW is wirespeed.
+# Measurements show around 930Mbit best-case.  Q-in-Q result in MTU
+# 1522 bytes.  TCP goodput segments are 1448 bytes.
+#
+RATE=$((930*1522/1448))Mbit
+##RATE=$((933*1522/1448))Mbit
+##CEIL=$((999*1522/1448))
+#CEIL=1Gbit
+CEIL=980mbit
+
+#RATE=500mbit
+#CEIL=577mbit
+
+# Each of the HTB root-class(es) get these RATE+CEIL upper bandwidth bounds.
+ROOT_RATE=9000Mbit
+ROOT_CEIL=9500Mbit
+
+DEFAULT_RATE=6000Mbit
+DEFAULT_CEIL=6000Mbit
+
+TC=/usr/sbin/tc
+VERBOSE=1
+
+function tc() {
+    _call_tc "" "$@"
+}
+
+# HTB shaper
+call_tc_allow_fail qdisc del dev "$DEV" root
+#tc qdisc add dev "$DEV" root handle 1: htb default 2
+tc qdisc add dev "$DEV" root handle 1: htb default 16
+
+# The root-class set upper bandwidth usage
+tc class add dev "$DEV" parent 1: classid 1:1 \
+       htb rate $ROOT_RATE ceil $ROOT_CEIL
+
+# Default class 1:2
+tc class add dev "$DEV" parent 1: classid 1:2 htb \
+        rate "$DEFAULT_RATE" ceil "$DEFAULT_CEIL"
+#       burst 100000 cburst 100000
+tc qdisc add dev $DEV parent 1:2 fq_codel
+
+
+# Class for vlan 16
+tc class add dev "$DEV" parent 1: classid 1:16 htb rate "$RATE" ceil "$CEIL" \
+        burst $((1522*2)) cburst $((1522*2)) \
+        linklayer ethernet
+#       burst 1522 cburst 1522
+        #burst 1 cburst 1
+#       burst $((1522*2)) cburst $((1522*2))
+#       overhead $((14+4+4)) linklayer ethernet
+#tc qdisc add dev "$DEV" parent 1:16 fq_codel
+tc qdisc add dev "$DEV" parent 1:16 fq_codel quantum $((1514+4+4))
+#tc qdisc add dev "$DEV" parent 1:16 pfifo
+
+# parent filter:
+#tc filter add dev "$DEV" parent 1:0 prio 100 protocol 802.1q u32
+#
+# vlan 16:
+#tc filter add dev "$DEV" parent 1:0 prio 100 \
+#        protocol 802.1q \
+#        u32 match u16 0x0010 0x0fff at -4 \
+#        flowid 1:16
+
+tc filter add dev $DEV protocol all parent 1:0 prio 101 \
+        basic match "meta(vlan mask 0xfff eq 16)" flowid 1:16