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selftests: mlxsw: Test port shaper

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TBF can be used as a root qdisc, in which case it is supposed to configure
port shaper. Add a test that verifies that this is so by installing a root
TBF with a ETS or PRIO below it, and then expecting individual bands to all
be shaped according to the root TBF configuration.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Petr Machata 2021-10-27 18:20:01 +03:00 committed by Jakub Kicinski
parent 3d5290ea1d
commit 2b11e24eba
1 changed files with 28 additions and 0 deletions
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28
tools/testing/selftests/net/forwarding/sch_tbf_etsprio.sh
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@ -4,9 +4,12 @@
ALL_TESTS=" ALL_TESTS="
ping_ipv4 ping_ipv4
tbf_test tbf_test
tbf_root_test
" "
source $lib_dir/sch_tbf_core.sh source $lib_dir/sch_tbf_core.sh
QDISC_TYPE=${QDISC% *}
tbf_test_one() tbf_test_one()
{ {
local bs=$1; shift local bs=$1; shift
@ -22,6 +25,8 @@ tbf_test_one()
tbf_test() tbf_test()
{ {
log_info "Testing root-$QDISC_TYPE-tbf"
# This test is used for both ETS and PRIO. Even though we only need two # This test is used for both ETS and PRIO. Even though we only need two
# bands, PRIO demands a minimum of three. # bands, PRIO demands a minimum of three.
tc qdisc add dev $swp2 root handle 10: $QDISC 3 priomap 2 1 0 tc qdisc add dev $swp2 root handle 10: $QDISC 3 priomap 2 1 0
@ -29,6 +34,29 @@ tbf_test()
tc qdisc del dev $swp2 root tc qdisc del dev $swp2 root
} }
tbf_root_test()
{
local bs=128K
log_info "Testing root-tbf-$QDISC_TYPE"
tc qdisc replace dev $swp2 root handle 1: \
tbf rate 400Mbit burst $bs limit 1M
tc qdisc replace dev $swp2 parent 1:1 handle 10: \
$QDISC 3 priomap 2 1 0
tc qdisc replace dev $swp2 parent 10:3 handle 103: \
bfifo limit 1M
tc qdisc replace dev $swp2 parent 10:2 handle 102: \
bfifo limit 1M
tc qdisc replace dev $swp2 parent 10:1 handle 101: \
bfifo limit 1M
do_tbf_test 10 400 $bs
do_tbf_test 11 400 $bs
tc qdisc del dev $swp2 root
}
trap cleanup EXIT trap cleanup EXIT
setup_prepare setup_prepare