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selftests: forwarding: add basic QoS classification test for Ocelot s…
…witches Test basic (port-default, VLAN PCP and IP DSCP) QoS classification for Ocelot switches. Advanced QoS classification using tc filters is covered by tc_flower_chains.sh in the same directory. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://lore.kernel.org/r/20220502155424.4098917-1-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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tools/testing/selftests/drivers/net/ocelot/basic_qos.sh
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| #!/bin/bash | ||
| # SPDX-License-Identifier: GPL-2.0 | ||
| # Copyright 2022 NXP | ||
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| # The script is mostly generic, with the exception of the | ||
| # ethtool per-TC counter names ("rx_green_prio_${tc}") | ||
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| WAIT_TIME=1 | ||
| NUM_NETIFS=4 | ||
| STABLE_MAC_ADDRS=yes | ||
| NETIF_CREATE=no | ||
| lib_dir=$(dirname $0)/../../../net/forwarding | ||
| source $lib_dir/tc_common.sh | ||
| source $lib_dir/lib.sh | ||
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| require_command dcb | ||
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| h1=${NETIFS[p1]} | ||
| swp1=${NETIFS[p2]} | ||
| swp2=${NETIFS[p3]} | ||
| h2=${NETIFS[p4]} | ||
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| H1_IPV4="192.0.2.1" | ||
| H2_IPV4="192.0.2.2" | ||
| H1_IPV6="2001:db8:1::1" | ||
| H2_IPV6="2001:db8:1::2" | ||
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| h1_create() | ||
| { | ||
| simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64 | ||
| } | ||
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| h1_destroy() | ||
| { | ||
| simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64 | ||
| } | ||
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| h2_create() | ||
| { | ||
| simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64 | ||
| } | ||
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| h2_destroy() | ||
| { | ||
| simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64 | ||
| } | ||
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| h1_vlan_create() | ||
| { | ||
| local vid=$1 | ||
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| vlan_create $h1 $vid | ||
| simple_if_init $h1.$vid $H1_IPV4/24 $H1_IPV6/64 | ||
| ip link set $h1.$vid type vlan \ | ||
| egress-qos-map 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7 \ | ||
| ingress-qos-map 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7 | ||
| } | ||
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| h1_vlan_destroy() | ||
| { | ||
| local vid=$1 | ||
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| simple_if_fini $h1.$vid $H1_IPV4/24 $H1_IPV6/64 | ||
| vlan_destroy $h1 $vid | ||
| } | ||
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| h2_vlan_create() | ||
| { | ||
| local vid=$1 | ||
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| vlan_create $h2 $vid | ||
| simple_if_init $h2.$vid $H2_IPV4/24 $H2_IPV6/64 | ||
| ip link set $h2.$vid type vlan \ | ||
| egress-qos-map 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7 \ | ||
| ingress-qos-map 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7 | ||
| } | ||
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| h2_vlan_destroy() | ||
| { | ||
| local vid=$1 | ||
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| simple_if_fini $h2.$vid $H2_IPV4/24 $H2_IPV6/64 | ||
| vlan_destroy $h2 $vid | ||
| } | ||
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| vlans_prepare() | ||
| { | ||
| h1_vlan_create 100 | ||
| h2_vlan_create 100 | ||
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| tc qdisc add dev ${h1}.100 clsact | ||
| tc filter add dev ${h1}.100 egress protocol ipv4 \ | ||
| flower ip_proto icmp action skbedit priority 3 | ||
| tc filter add dev ${h1}.100 egress protocol ipv6 \ | ||
| flower ip_proto icmpv6 action skbedit priority 3 | ||
| } | ||
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| vlans_destroy() | ||
| { | ||
| tc qdisc del dev ${h1}.100 clsact | ||
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| h1_vlan_destroy 100 | ||
| h2_vlan_destroy 100 | ||
| } | ||
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| switch_create() | ||
| { | ||
| ip link set ${swp1} up | ||
| ip link set ${swp2} up | ||
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| # Ports should trust VLAN PCP even with vlan_filtering=0 | ||
| ip link add br0 type bridge | ||
| ip link set ${swp1} master br0 | ||
| ip link set ${swp2} master br0 | ||
| ip link set br0 up | ||
| } | ||
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| switch_destroy() | ||
| { | ||
| ip link del br0 | ||
| } | ||
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| setup_prepare() | ||
| { | ||
| vrf_prepare | ||
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| h1_create | ||
| h2_create | ||
| switch_create | ||
| } | ||
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| cleanup() | ||
| { | ||
| pre_cleanup | ||
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| h2_destroy | ||
| h1_destroy | ||
| switch_destroy | ||
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| vrf_cleanup | ||
| } | ||
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| dscp_cs_to_tos() | ||
| { | ||
| local dscp_cs=$1 | ||
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| # https://datatracker.ietf.org/doc/html/rfc2474 | ||
| # 4.2.2.1 The Class Selector Codepoints | ||
| echo $((${dscp_cs} << 5)) | ||
| } | ||
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| run_test() | ||
| { | ||
| local test_name=$1; shift | ||
| local if_name=$1; shift | ||
| local tc=$1; shift | ||
| local tos=$1; shift | ||
| local counter_name="rx_green_prio_${tc}" | ||
| local ipv4_before | ||
| local ipv4_after | ||
| local ipv6_before | ||
| local ipv6_after | ||
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| ipv4_before=$(ethtool_stats_get ${swp1} "${counter_name}") | ||
| ping_do ${if_name} $H2_IPV4 "-Q ${tos}" | ||
| ipv4_after=$(ethtool_stats_get ${swp1} "${counter_name}") | ||
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| if [ $((${ipv4_after} - ${ipv4_before})) -lt ${PING_COUNT} ]; then | ||
| RET=1 | ||
| else | ||
| RET=0 | ||
| fi | ||
| log_test "IPv4 ${test_name}" | ||
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| ipv6_before=$(ethtool_stats_get ${swp1} "${counter_name}") | ||
| ping_do ${if_name} $H2_IPV6 "-Q ${tos}" | ||
| ipv6_after=$(ethtool_stats_get ${swp1} "${counter_name}") | ||
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| if [ $((${ipv6_after} - ${ipv6_before})) -lt ${PING_COUNT} ]; then | ||
| RET=1 | ||
| else | ||
| RET=0 | ||
| fi | ||
| log_test "IPv6 ${test_name}" | ||
| } | ||
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| port_default_prio_get() | ||
| { | ||
| local if_name=$1 | ||
| local prio | ||
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| prio="$(dcb -j app show dev ${if_name} default-prio | \ | ||
| jq '.default_prio[]')" | ||
| if [ -z "${prio}" ]; then | ||
| prio=0 | ||
| fi | ||
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| echo ${prio} | ||
| } | ||
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| test_port_default() | ||
| { | ||
| local orig=$(port_default_prio_get ${swp1}) | ||
| local dmac=$(mac_get ${h2}) | ||
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| dcb app replace dev ${swp1} default-prio 5 | ||
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| run_test "Port-default QoS classification" ${h1} 5 0 | ||
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| dcb app replace dev ${swp1} default-prio ${orig} | ||
| } | ||
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| test_vlan_pcp() | ||
| { | ||
| vlans_prepare | ||
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| run_test "Trusted VLAN PCP QoS classification" ${h1}.100 3 0 | ||
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| vlans_destroy | ||
| } | ||
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| test_ip_dscp() | ||
| { | ||
| local port_default=$(port_default_prio_get ${swp1}) | ||
| local tos=$(dscp_cs_to_tos 4) | ||
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| dcb app add dev ${swp1} dscp-prio CS4:4 | ||
| run_test "Trusted DSCP QoS classification" ${h1} 4 ${tos} | ||
| dcb app del dev ${swp1} dscp-prio CS4:4 | ||
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| vlans_prepare | ||
| run_test "Untrusted DSCP QoS classification follows VLAN PCP" \ | ||
| ${h1}.100 3 ${tos} | ||
| vlans_destroy | ||
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| run_test "Untrusted DSCP QoS classification follows port default" \ | ||
| ${h1} ${port_default} ${tos} | ||
| } | ||
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| trap cleanup EXIT | ||
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| ALL_TESTS=" | ||
| test_port_default | ||
| test_vlan_pcp | ||
| test_ip_dscp | ||
| " | ||
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| setup_prepare | ||
| setup_wait | ||
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| tests_run | ||
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| exit $EXIT_STATUS |