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 8 9ALL_TESTS=" 10 ping_ipv4 11 priomap_mode 12 ets_test_strict 13 ets_test_mixed 14 ets_test_dwrr 15" 16 17PARENT="parent 3:3" 18 19switch_create() 20{ 21 # Create a bottleneck so that the DWRR process can kick in. 22 tc qdisc replace dev $swp2 root handle 3: tbf rate 1gbit \ 23 burst 128K limit 1G 24 25 ets_switch_create 26 27 # Set the ingress quota high and use the three egress TCs to limit the 28 # amount of traffic that is admitted to the shared buffers. This makes 29 # sure that there is always enough traffic of all types to select from 30 # for the DWRR process. 31 devlink_port_pool_th_save $swp1 0 32 devlink_port_pool_th_set $swp1 0 12 33 devlink_tc_bind_pool_th_save $swp1 0 ingress 34 devlink_tc_bind_pool_th_set $swp1 0 ingress 0 12 35 devlink_port_pool_th_save $swp2 4 36 devlink_port_pool_th_set $swp2 4 12 37 devlink_tc_bind_pool_th_save $swp2 7 egress 38 devlink_tc_bind_pool_th_set $swp2 7 egress 4 5 39 devlink_tc_bind_pool_th_save $swp2 6 egress 40 devlink_tc_bind_pool_th_set $swp2 6 egress 4 5 41 devlink_tc_bind_pool_th_save $swp2 5 egress 42 devlink_tc_bind_pool_th_set $swp2 5 egress 4 5 43 44 # Note: sch_ets_core.sh uses VLAN ingress-qos-map to assign packet 45 # priorities at $swp1 based on their 802.1p headers. ingress-qos-map is 46 # not offloaded by mlxsw as of this writing, but the mapping used is 47 # 1:1, which is the mapping currently hard-coded by the driver. 48} 49 50switch_destroy() 51{ 52 devlink_tc_bind_pool_th_restore $swp2 5 egress 53 devlink_tc_bind_pool_th_restore $swp2 6 egress 54 devlink_tc_bind_pool_th_restore $swp2 7 egress 55 devlink_port_pool_th_restore $swp2 4 56 devlink_tc_bind_pool_th_restore $swp1 0 ingress 57 devlink_port_pool_th_restore $swp1 0 58 59 ets_switch_destroy 60 61 tc qdisc del dev $swp2 root handle 3: 62} 63 64# Callback from sch_ets_tests.sh 65collect_stats() 66{ 67 local -a streams=("$@") 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 "configure DCB" "configure Qdiscs" 81ets_run 82