traffic-pacing-edt: Add tc_fq_pacer.sh script for MQ-FQ setup

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

traffic-pacing-edt/tc_fq_pacer.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+#
+# Loading FQ pacing qdisc in multi-queue MQ setup to avoid root qdisc lock.
+#
+# 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 ${basedir}/parameters.sh
+
+export TC=/sbin/tc
+function tc() {
+    _call_tc "" "$@"
+}
+
+# Default verbose
+VERBOSE=1
+
+# Delete existing root qdisc
+call_tc_allow_fail qdisc del dev "$DEV" root
+
+# MQ (Multi-Queue) as root qdisc
+tc qdisc replace dev $DEV root handle 7FFF: mq
+
+# Add FQ-pacer qdisc on each NIC avail TX-queue
+i=0
+for dir in /sys/class/net/$DEV/queues/tx-*; do
+    ((i++)) || true
+    tc qdisc add dev $DEV parent 7FFF:$i handle $i: fq
+done