forked from Minki/linux
selftests: mlxsw: Add a test for un/offloadable qdisc trees
This checks that various qdisc configurations either are or are not offloaded. Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata
David S. Miller
parent
2a18c08d75
commit
29c1eac2e6
276
tools/testing/selftests/drivers/net/mlxsw/sch_offload.sh
Executable file
276
tools/testing/selftests/drivers/net/mlxsw/sch_offload.sh
Executable file
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# Test qdisc offload indication
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ALL_TESTS="
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test_root
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test_etsprio
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"
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NUM_NETIFS=1
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lib_dir=$(dirname $0)/../../../net/forwarding
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source $lib_dir/lib.sh
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check_not_offloaded()
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{
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local handle=$1; shift
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local h
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local offloaded
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h=$(qdisc_stats_get $h1 "$handle" .handle)
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[[ $h == '"'$handle'"' ]]
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check_err $? "Qdisc with handle $handle does not exist"
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offloaded=$(qdisc_stats_get $h1 "$handle" .offloaded)
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[[ $offloaded == true ]]
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check_fail $? "Qdisc with handle $handle offloaded, but should not be"
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}
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check_all_offloaded()
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{
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local handle=$1; shift
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if [[ ! -z $handle ]]; then
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local offloaded=$(qdisc_stats_get $h1 "$handle" .offloaded)
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[[ $offloaded == true ]]
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check_err $? "Qdisc with handle $handle not offloaded"
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fi
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local unoffloaded=$(tc q sh dev $h1 invisible |
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grep -v offloaded |
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sed s/root/parent\ root/ |
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cut -d' ' -f 5)
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[[ -z $unoffloaded ]]
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check_err $? "Qdiscs with following parents not offloaded: $unoffloaded"
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pre_cleanup
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}
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with_ets()
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{
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local handle=$1; shift
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local locus=$1; shift
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tc qdisc add dev $h1 $locus handle $handle \
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ets bands 8 priomap 7 6 5 4 3 2 1 0
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"$@"
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tc qdisc del dev $h1 $locus
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}
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with_prio()
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{
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local handle=$1; shift
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local locus=$1; shift
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tc qdisc add dev $h1 $locus handle $handle \
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prio bands 8 priomap 7 6 5 4 3 2 1 0
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"$@"
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tc qdisc del dev $h1 $locus
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}
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with_red()
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{
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local handle=$1; shift
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local locus=$1; shift
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tc qdisc add dev $h1 $locus handle $handle \
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red limit 1000000 min 200000 max 300000 probability 0.5 avpkt 1500
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"$@"
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tc qdisc del dev $h1 $locus
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}
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with_tbf()
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{
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local handle=$1; shift
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local locus=$1; shift
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tc qdisc add dev $h1 $locus handle $handle \
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tbf rate 400Mbit burst 128K limit 1M
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"$@"
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tc qdisc del dev $h1 $locus
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}
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with_pfifo()
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{
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local handle=$1; shift
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local locus=$1; shift
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tc qdisc add dev $h1 $locus handle $handle pfifo limit 100K
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"$@"
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tc qdisc del dev $h1 $locus
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}
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with_bfifo()
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{
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local handle=$1; shift
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local locus=$1; shift
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tc qdisc add dev $h1 $locus handle $handle bfifo limit 100K
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"$@"
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tc qdisc del dev $h1 $locus
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}
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with_drr()
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{
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local handle=$1; shift
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local locus=$1; shift
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tc qdisc add dev $h1 $locus handle $handle drr
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"$@"
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tc qdisc del dev $h1 $locus
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}
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with_qdiscs()
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{
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local handle=$1; shift
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local parent=$1; shift
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local kind=$1; shift
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local next_handle=$((handle * 2))
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local locus;
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if [[ $kind == "--" ]]; then
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local cmd=$1; shift
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$cmd $(printf %x: $parent) "$@"
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else
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if ((parent == 0)); then
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locus=root
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else
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locus=$(printf "parent %x:1" $parent)
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fi
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with_$kind $(printf %x: $handle) "$locus" \
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with_qdiscs $next_handle $handle "$@"
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fi
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}
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get_name()
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{
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local parent=$1; shift
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local name=$(echo "" "${@^^}" | tr ' ' -)
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if ((parent != 0)); then
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kind=$(qdisc_stats_get $h1 $parent: .kind)
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kind=${kind%\"}
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kind=${kind#\"}
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name="-${kind^^}$name"
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fi
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echo root$name
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}
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do_test_offloaded()
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{
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local handle=$1; shift
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local parent=$1; shift
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RET=0
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with_qdiscs $handle $parent "$@" -- check_all_offloaded
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log_test $(get_name $parent "$@")" offloaded"
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}
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do_test_nooffload()
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{
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local handle=$1; shift
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local parent=$1; shift
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local name=$(echo "${@^^}" | tr ' ' -)
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local kind
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RET=0
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with_qdiscs $handle $parent "$@" -- check_not_offloaded
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log_test $(get_name $parent "$@")" not offloaded"
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}
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do_test_combinations()
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{
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local handle=$1; shift
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local parent=$1; shift
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local cont
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local leaf
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local fifo
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for cont in "" ets prio; do
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for leaf in "" red tbf "red tbf" "tbf red"; do
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for fifo in "" pfifo bfifo; do
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if [[ -z "$cont$leaf$fifo" ]]; then
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continue
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fi
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do_test_offloaded $handle $parent \
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$cont $leaf $fifo
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done
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done
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done
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for cont in ets prio; do
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for leaf in red tbf; do
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do_test_nooffload $handle $parent $cont red tbf $leaf
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do_test_nooffload $handle $parent $cont tbf red $leaf
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done
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for leaf in "red red" "tbf tbf"; do
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do_test_nooffload $handle $parent $cont $leaf
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done
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done
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do_test_nooffload $handle $parent drr
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}
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test_root()
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{
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do_test_combinations 1 0
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}
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do_test_etsprio()
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{
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local parent=$1; shift
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local tbfpfx=$1; shift
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local cont
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for cont in ets prio; do
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RET=0
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with_$cont 8: "$parent" \
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with_red 11: "parent 8:1" \
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with_red 12: "parent 8:2" \
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with_tbf 13: "parent 8:3" \
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with_tbf 14: "parent 8:4" \
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check_all_offloaded
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log_test "root$tbfpfx-ETS-{RED,TBF} offloaded"
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RET=0
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with_$cont 8: "$parent" \
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with_red 81: "parent 8:1" \
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with_tbf 811: "parent 81:1" \
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with_tbf 84: "parent 8:4" \
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with_red 841: "parent 84:1" \
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check_all_offloaded
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log_test "root$tbfpfx-ETS-{RED-TBF,TBF-RED} offloaded"
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RET=0
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with_$cont 8: "$parent" \
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with_red 81: "parent 8:1" \
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with_tbf 811: "parent 81:1" \
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with_bfifo 8111: "parent 811:1" \
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with_tbf 82: "parent 8:2" \
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with_red 821: "parent 82:1" \
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with_bfifo 8211: "parent 821:1" \
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check_all_offloaded
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log_test "root$tbfpfx-ETS-{RED-TBF-bFIFO,TBF-RED-bFIFO} offloaded"
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done
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}
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test_etsprio()
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{
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do_test_etsprio root ""
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}
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cleanup()
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{
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tc qdisc del dev $h1 root &>/dev/null
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}
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trap cleanup EXIT
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h1=${NETIFS[p1]}
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tests_run
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exit $EXIT_STATUS
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