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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Test qdisc offload indication
ALL_TESTS="
test_root
test_port_tbf
test_etsprio
test_etsprio_port_tbf
"
NUM_NETIFS=1
lib_dir=$(dirname $0)/../../../net/forwarding
source $lib_dir/lib.sh
check_not_offloaded()
{
local handle=$1; shift
local h
local offloaded
h=$(qdisc_stats_get $h1 "$handle" .handle)
[[ $h == '"'$handle'"' ]]
check_err $? "Qdisc with handle $handle does not exist"
offloaded=$(qdisc_stats_get $h1 "$handle" .offloaded)
[[ $offloaded == true ]]
check_fail $? "Qdisc with handle $handle offloaded, but should not be"
}
check_all_offloaded()
{
local handle=$1; shift
if [[ ! -z $handle ]]; then
local offloaded=$(qdisc_stats_get $h1 "$handle" .offloaded)
[[ $offloaded == true ]]
check_err $? "Qdisc with handle $handle not offloaded"
fi
local unoffloaded=$(tc q sh dev $h1 invisible |
grep -v offloaded |
sed s/root/parent\ root/ |
cut -d' ' -f 5)
[[ -z $unoffloaded ]]
check_err $? "Qdiscs with following parents not offloaded: $unoffloaded"
pre_cleanup
}
with_ets()
{
local handle=$1; shift
local locus=$1; shift
tc qdisc add dev $h1 $locus handle $handle \
ets bands 8 priomap 7 6 5 4 3 2 1 0
"$@"
tc qdisc del dev $h1 $locus
}
with_prio()
{
local handle=$1; shift
local locus=$1; shift
tc qdisc add dev $h1 $locus handle $handle \
prio bands 8 priomap 7 6 5 4 3 2 1 0
"$@"
tc qdisc del dev $h1 $locus
}
with_red()
{
local handle=$1; shift
local locus=$1; shift
tc qdisc add dev $h1 $locus handle $handle \
red limit 1000000 min 200000 max 300000 probability 0.5 avpkt 1500
"$@"
tc qdisc del dev $h1 $locus
}
with_tbf()
{
local handle=$1; shift
local locus=$1; shift
tc qdisc add dev $h1 $locus handle $handle \
tbf rate 400Mbit burst 128K limit 1M
"$@"
tc qdisc del dev $h1 $locus
}
with_pfifo()
{
local handle=$1; shift
local locus=$1; shift
tc qdisc add dev $h1 $locus handle $handle pfifo limit 100K
"$@"
tc qdisc del dev $h1 $locus
}
with_bfifo()
{
local handle=$1; shift
local locus=$1; shift
tc qdisc add dev $h1 $locus handle $handle bfifo limit 100K
"$@"
tc qdisc del dev $h1 $locus
}
with_drr()
{
local handle=$1; shift
local locus=$1; shift
tc qdisc add dev $h1 $locus handle $handle drr
"$@"
tc qdisc del dev $h1 $locus
}
with_qdiscs()
{
local handle=$1; shift
local parent=$1; shift
local kind=$1; shift
local next_handle=$((handle * 2))
local locus;
if [[ $kind == "--" ]]; then
local cmd=$1; shift
$cmd $(printf %x: $parent) "$@"
else
if ((parent == 0)); then
locus=root
else
locus=$(printf "parent %x:1" $parent)
fi
with_$kind $(printf %x: $handle) "$locus" \
with_qdiscs $next_handle $handle "$@"
fi
}
get_name()
{
local parent=$1; shift
local name=$(echo "" "${@^^}" | tr ' ' -)
if ((parent != 0)); then
kind=$(qdisc_stats_get $h1 $parent: .kind)
kind=${kind%\"}
kind=${kind#\"}
name="-${kind^^}$name"
fi
echo root$name
}
do_test_offloaded()
{
local handle=$1; shift
local parent=$1; shift
RET=0
with_qdiscs $handle $parent "$@" -- check_all_offloaded
log_test $(get_name $parent "$@")" offloaded"
}
do_test_nooffload()
{
local handle=$1; shift
local parent=$1; shift
local name=$(echo "${@^^}" | tr ' ' -)
local kind
RET=0
with_qdiscs $handle $parent "$@" -- check_not_offloaded
log_test $(get_name $parent "$@")" not offloaded"
}
do_test_combinations()
{
local handle=$1; shift
local parent=$1; shift
local cont
local leaf
local fifo
for cont in "" ets prio; do
for leaf in "" red tbf "red tbf" "tbf red"; do
for fifo in "" pfifo bfifo; do
if [[ -z "$cont$leaf$fifo" ]]; then
continue
fi
do_test_offloaded $handle $parent \
$cont $leaf $fifo
done
done
done
for cont in ets prio; do
for leaf in red tbf; do
do_test_nooffload $handle $parent $cont red tbf $leaf
do_test_nooffload $handle $parent $cont tbf red $leaf
done
for leaf in "red red" "tbf tbf"; do
do_test_nooffload $handle $parent $cont $leaf
done
done
do_test_nooffload $handle $parent drr
}
test_root()
{
do_test_combinations 1 0
}
test_port_tbf()
{
with_tbf 1: root \
do_test_combinations 8 1
}
do_test_etsprio()
{
local parent=$1; shift
local tbfpfx=$1; shift
local cont
for cont in ets prio; do
RET=0
with_$cont 8: "$parent" \
with_red 11: "parent 8:1" \
with_red 12: "parent 8:2" \
with_tbf 13: "parent 8:3" \
with_tbf 14: "parent 8:4" \
check_all_offloaded
log_test "root$tbfpfx-ETS-{RED,TBF} offloaded"
RET=0
with_$cont 8: "$parent" \
with_red 81: "parent 8:1" \
with_tbf 811: "parent 81:1" \
with_tbf 84: "parent 8:4" \
with_red 841: "parent 84:1" \
check_all_offloaded
log_test "root$tbfpfx-ETS-{RED-TBF,TBF-RED} offloaded"
RET=0
with_$cont 8: "$parent" \
with_red 81: "parent 8:1" \
with_tbf 811: "parent 81:1" \
with_bfifo 8111: "parent 811:1" \
with_tbf 82: "parent 8:2" \
with_red 821: "parent 82:1" \
with_bfifo 8211: "parent 821:1" \
check_all_offloaded
log_test "root$tbfpfx-ETS-{RED-TBF-bFIFO,TBF-RED-bFIFO} offloaded"
done
}
test_etsprio()
{
do_test_etsprio root ""
}
test_etsprio_port_tbf()
{
with_tbf 1: root \
do_test_etsprio "parent 1:1" "-TBF"
}
cleanup()
{
tc qdisc del dev $h1 root &>/dev/null
}
trap cleanup EXIT
h1=${NETIFS[p1]}
tests_run
exit $EXIT_STATUS