selftests: mlxsw: Test port shaper

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>

diff --git a/tools/testing/selftests/net/forwarding/sch_tbf_etsprio.sh b/tools/testing/selftests/net/forwarding/sch_tbf_etsprio.sh
index 8bd85da..75a37c1 100644 (file)
--- a/tools/testing/selftests/net/forwarding/sch_tbf_etsprio.sh
+++ b/tools/testing/selftests/net/forwarding/sch_tbf_etsprio.sh
@@ -4,9 +4,12 @@
 ALL_TESTS="
        ping_ipv4
        tbf_test
+       tbf_root_test
 "
 source $lib_dir/sch_tbf_core.sh
 
+QDISC_TYPE=${QDISC% *}
+
 tbf_test_one()
 {
        local bs=$1; shift
@@ -22,6 +25,8 @@ tbf_test_one()
 
 tbf_test()
 {
+       log_info "Testing root-$QDISC_TYPE-tbf"
+
        # This test is used for both ETS and PRIO. Even though we only need two
        # bands, PRIO demands a minimum of three.
        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
 }
 
+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
 
 setup_prepare