tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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