1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4# A driver for the ETS selftest that implements testing in offloaded datapath.
5lib_dir=$(dirname $0)/../../../net/forwarding
6source $lib_dir/sch_ets_core.sh
7source $lib_dir/devlink_lib.sh
8source qos_lib.sh
9
10ALL_TESTS="
11	ping_ipv4
12	priomap_mode
13	ets_test_strict
14	ets_test_mixed
15	ets_test_dwrr
16"
17
18switch_create()
19{
20	ets_switch_create
21
22	# Create a bottleneck so that the DWRR process can kick in.
23	ethtool -s $h2 speed 1000 autoneg off
24	ethtool -s $swp2 speed 1000 autoneg off
25
26	# Set the ingress quota high and use the three egress TCs to limit the
27	# amount of traffic that is admitted to the shared buffers. This makes
28	# sure that there is always enough traffic of all types to select from
29	# for the DWRR process.
30	devlink_port_pool_th_save $swp1 0
31	devlink_port_pool_th_set $swp1 0 12
32	devlink_tc_bind_pool_th_save $swp1 0 ingress
33	devlink_tc_bind_pool_th_set $swp1 0 ingress 0 12
34	devlink_port_pool_th_save $swp2 4
35	devlink_port_pool_th_set $swp2 4 12
36	devlink_tc_bind_pool_th_save $swp2 7 egress
37	devlink_tc_bind_pool_th_set $swp2 7 egress 4 5
38	devlink_tc_bind_pool_th_save $swp2 6 egress
39	devlink_tc_bind_pool_th_set $swp2 6 egress 4 5
40	devlink_tc_bind_pool_th_save $swp2 5 egress
41	devlink_tc_bind_pool_th_set $swp2 5 egress 4 5
42
43	# Note: sch_ets_core.sh uses VLAN ingress-qos-map to assign packet
44	# priorities at $swp1 based on their 802.1p headers. ingress-qos-map is
45	# not offloaded by mlxsw as of this writing, but the mapping used is
46	# 1:1, which is the mapping currently hard-coded by the driver.
47}
48
49switch_destroy()
50{
51	devlink_tc_bind_pool_th_restore $swp2 5 egress
52	devlink_tc_bind_pool_th_restore $swp2 6 egress
53	devlink_tc_bind_pool_th_restore $swp2 7 egress
54	devlink_port_pool_th_restore $swp2 4
55	devlink_tc_bind_pool_th_restore $swp1 0 ingress
56	devlink_port_pool_th_restore $swp1 0
57
58	ethtool -s $swp2 autoneg on
59	ethtool -s $h2 autoneg on
60
61	ets_switch_destroy
62}
63
64# Callback from sch_ets_tests.sh
65collect_stats()
66{
67	local -a streams=("$@")
68	local stream
69
70	# Wait for qdisc counter update so that we don't get it mid-way through.
71	busywait_for_counter 1000 +1 \
72		qdisc_parent_stats_get $swp2 10:$((${streams[0]} + 1)) .bytes \
73		> /dev/null
74
75	for stream in ${streams[@]}; do
76		qdisc_parent_stats_get $swp2 10:$((stream + 1)) .bytes
77	done
78}
79
80bail_on_lldpad
81ets_run
82