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|
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright 2022 NXP
# The script is mostly generic, with the exception of the
# ethtool per-TC counter names ("rx_green_prio_${tc}")
WAIT_TIME=1
NUM_NETIFS=4
STABLE_MAC_ADDRS=yes
NETIF_CREATE=no
lib_dir=$(dirname $0)/../../../net/forwarding
source $lib_dir/tc_common.sh
source $lib_dir/lib.sh
require_command dcb
h1=${NETIFS[p1]}
swp1=${NETIFS[p2]}
swp2=${NETIFS[p3]}
h2=${NETIFS[p4]}
H1_IPV4="192.0.2.1"
H2_IPV4="192.0.2.2"
H1_IPV6="2001:db8:1::1"
H2_IPV6="2001:db8:1::2"
h1_create()
{
simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
}
h1_destroy()
{
simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
}
h2_create()
{
simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
}
h2_destroy()
{
simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
}
h1_vlan_create()
{
local vid=$1
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
}
h1_vlan_destroy()
{
local vid=$1
simple_if_fini $h1.$vid $H1_IPV4/24 $H1_IPV6/64
vlan_destroy $h1 $vid
}
h2_vlan_create()
{
local vid=$1
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
}
h2_vlan_destroy()
{
local vid=$1
simple_if_fini $h2.$vid $H2_IPV4/24 $H2_IPV6/64
vlan_destroy $h2 $vid
}
vlans_prepare()
{
h1_vlan_create 100
h2_vlan_create 100
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
}
vlans_destroy()
{
tc qdisc del dev ${h1}.100 clsact
h1_vlan_destroy 100
h2_vlan_destroy 100
}
switch_create()
{
ip link set ${swp1} up
ip link set ${swp2} up
# 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
}
switch_destroy()
{
ip link del br0
}
setup_prepare()
{
vrf_prepare
h1_create
h2_create
switch_create
}
cleanup()
{
pre_cleanup
h2_destroy
h1_destroy
switch_destroy
vrf_cleanup
}
dscp_cs_to_tos()
{
local dscp_cs=$1
# https://datatracker.ietf.org/doc/html/rfc2474
# 4.2.2.1 The Class Selector Codepoints
echo $((${dscp_cs} << 5))
}
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
ipv4_before=$(ethtool_stats_get ${swp1} "${counter_name}")
ping_do ${if_name} $H2_IPV4 "-Q ${tos}"
ipv4_after=$(ethtool_stats_get ${swp1} "${counter_name}")
if [ $((${ipv4_after} - ${ipv4_before})) -lt ${PING_COUNT} ]; then
RET=1
else
RET=0
fi
log_test "IPv4 ${test_name}"
ipv6_before=$(ethtool_stats_get ${swp1} "${counter_name}")
ping_do ${if_name} $H2_IPV6 "-Q ${tos}"
ipv6_after=$(ethtool_stats_get ${swp1} "${counter_name}")
if [ $((${ipv6_after} - ${ipv6_before})) -lt ${PING_COUNT} ]; then
RET=1
else
RET=0
fi
log_test "IPv6 ${test_name}"
}
port_default_prio_get()
{
local if_name=$1
local prio
prio="$(dcb -j app show dev ${if_name} default-prio | \
jq '.default_prio[]')"
if [ -z "${prio}" ]; then
prio=0
fi
echo ${prio}
}
test_port_default()
{
local orig=$(port_default_prio_get ${swp1})
local dmac=$(mac_get ${h2})
dcb app replace dev ${swp1} default-prio 5
run_test "Port-default QoS classification" ${h1} 5 0
dcb app replace dev ${swp1} default-prio ${orig}
}
test_vlan_pcp()
{
vlans_prepare
run_test "Trusted VLAN PCP QoS classification" ${h1}.100 3 0
vlans_destroy
}
test_ip_dscp()
{
local port_default=$(port_default_prio_get ${swp1})
local tos=$(dscp_cs_to_tos 4)
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
vlans_prepare
run_test "Untrusted DSCP QoS classification follows VLAN PCP" \
${h1}.100 3 ${tos}
vlans_destroy
run_test "Untrusted DSCP QoS classification follows port default" \
${h1} ${port_default} ${tos}
}
trap cleanup EXIT
ALL_TESTS="
test_port_default
test_vlan_pcp
test_ip_dscp
"
setup_prepare
setup_wait
tests_run
exit $EXIT_STATUS
|
