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selftests: forwarding: hw_stats_l3: Add a new test
Add a test that verifies operation of L3 HW statistics. Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata
David S. Miller
parent
8d0f7d3ac6
commit
ba95e79309
332
tools/testing/selftests/net/forwarding/hw_stats_l3.sh
Executable file
332
tools/testing/selftests/net/forwarding/hw_stats_l3.sh
Executable file
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# +--------------------+ +----------------------+
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# | H1 | | H2 |
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# | | | |
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# | $h1.200 + | | + $h2.200 |
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# | 192.0.2.1/28 | | | | 192.0.2.18/28 |
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# | 2001:db8:1::1/64 | | | | 2001:db8:2::1/64 |
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# | | | | | |
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# | $h1 + | | + $h2 |
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# | | | | | |
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# +------------------|-+ +-|--------------------+
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# | |
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# +------------------|-------------------------|--------------------+
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# | SW | | |
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# | | | |
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# | $rp1 + + $rp2 |
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# | | | |
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# | $rp1.200 + + $rp2.200 |
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# | 192.0.2.2/28 192.0.2.17/28 |
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# | 2001:db8:1::2/64 2001:db8:2::2/64 |
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# | |
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# +-----------------------------------------------------------------+
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ALL_TESTS="
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ping_ipv4
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ping_ipv6
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test_stats_rx_ipv4
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test_stats_tx_ipv4
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test_stats_rx_ipv6
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test_stats_tx_ipv6
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respin_enablement
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test_stats_rx_ipv4
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test_stats_tx_ipv4
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test_stats_rx_ipv6
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test_stats_tx_ipv6
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reapply_config
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ping_ipv4
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ping_ipv6
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test_stats_rx_ipv4
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test_stats_tx_ipv4
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test_stats_rx_ipv6
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test_stats_tx_ipv6
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test_stats_report_rx
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test_stats_report_tx
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test_destroy_enabled
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test_double_enable
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"
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NUM_NETIFS=4
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source lib.sh
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h1_create()
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{
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simple_if_init $h1
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vlan_create $h1 200 v$h1 192.0.2.1/28 2001:db8:1::1/64
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ip route add 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
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ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
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}
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h1_destroy()
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{
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ip -6 route del 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
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ip route del 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
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vlan_destroy $h1 200
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simple_if_fini $h1
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}
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h2_create()
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{
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simple_if_init $h2
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vlan_create $h2 200 v$h2 192.0.2.18/28 2001:db8:2::1/64
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ip route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.17
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ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::2
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}
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h2_destroy()
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{
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ip -6 route del 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::2
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ip route del 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.17
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vlan_destroy $h2 200
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simple_if_fini $h2
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}
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router_rp1_200_create()
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{
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ip link add name $rp1.200 up \
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link $rp1 addrgenmode eui64 type vlan id 200
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ip address add dev $rp1.200 192.0.2.2/28
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ip address add dev $rp1.200 2001:db8:1::2/64
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ip stats set dev $rp1.200 l3_stats on
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}
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router_rp1_200_destroy()
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{
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ip stats set dev $rp1.200 l3_stats off
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ip address del dev $rp1.200 2001:db8:1::2/64
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ip address del dev $rp1.200 192.0.2.2/28
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ip link del dev $rp1.200
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}
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router_create()
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{
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ip link set dev $rp1 up
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router_rp1_200_create
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ip link set dev $rp2 up
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vlan_create $rp2 200 "" 192.0.2.17/28 2001:db8:2::2/64
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}
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router_destroy()
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{
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vlan_destroy $rp2 200
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ip link set dev $rp2 down
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router_rp1_200_destroy
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ip link set dev $rp1 down
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}
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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rp1=${NETIFS[p2]}
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rp2=${NETIFS[p3]}
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h2=${NETIFS[p4]}
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rp1mac=$(mac_get $rp1)
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rp2mac=$(mac_get $rp2)
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vrf_prepare
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h1_create
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h2_create
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router_create
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forwarding_enable
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}
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cleanup()
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{
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pre_cleanup
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forwarding_restore
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router_destroy
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h2_destroy
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h1_destroy
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vrf_cleanup
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}
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ping_ipv4()
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{
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ping_test $h1.200 192.0.2.18 " IPv4"
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}
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ping_ipv6()
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{
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ping_test $h1.200 2001:db8:2::1 " IPv6"
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}
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get_l3_stat()
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{
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local selector=$1; shift
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ip -j stats show dev $rp1.200 group offload subgroup l3_stats |
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jq '.[0].stats64.'$selector
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}
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send_packets_rx_ipv4()
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{
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# Send 21 packets instead of 20, because the first one might trap and go
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# through the SW datapath, which might not bump the HW counter.
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$MZ $h1.200 -c 21 -d 20msec -p 100 \
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-a own -b $rp1mac -A 192.0.2.1 -B 192.0.2.18 \
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-q -t udp sp=54321,dp=12345
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}
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send_packets_rx_ipv6()
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{
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$MZ $h1.200 -6 -c 21 -d 20msec -p 100 \
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-a own -b $rp1mac -A 2001:db8:1::1 -B 2001:db8:2::1 \
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-q -t udp sp=54321,dp=12345
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}
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send_packets_tx_ipv4()
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{
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$MZ $h2.200 -c 21 -d 20msec -p 100 \
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-a own -b $rp2mac -A 192.0.2.18 -B 192.0.2.1 \
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-q -t udp sp=54321,dp=12345
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}
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send_packets_tx_ipv6()
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{
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$MZ $h2.200 -6 -c 21 -d 20msec -p 100 \
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-a own -b $rp2mac -A 2001:db8:2::1 -B 2001:db8:1::1 \
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-q -t udp sp=54321,dp=12345
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}
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___test_stats()
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{
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local dir=$1; shift
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local prot=$1; shift
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local a
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local b
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a=$(get_l3_stat ${dir}.packets)
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send_packets_${dir}_${prot}
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"$@"
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b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \
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get_l3_stat ${dir}.packets)
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check_err $? "Traffic not reflected in the counter: $a -> $b"
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}
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__test_stats()
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{
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local dir=$1; shift
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local prot=$1; shift
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RET=0
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___test_stats "$dir" "$prot"
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log_test "Test $dir packets: $prot"
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}
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test_stats_rx_ipv4()
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{
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__test_stats rx ipv4
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}
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test_stats_tx_ipv4()
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{
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__test_stats tx ipv4
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}
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test_stats_rx_ipv6()
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{
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__test_stats rx ipv6
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}
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test_stats_tx_ipv6()
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{
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__test_stats tx ipv6
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}
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# Make sure everything works well even after stats have been disabled and
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# reenabled on the same device without touching the L3 configuration.
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respin_enablement()
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{
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log_info "Turning stats off and on again"
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ip stats set dev $rp1.200 l3_stats off
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ip stats set dev $rp1.200 l3_stats on
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}
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# For the initial run, l3_stats is enabled on a completely set up netdevice. Now
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# do it the other way around: enabling the L3 stats on an L2 netdevice, and only
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# then apply the L3 configuration.
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reapply_config()
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{
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log_info "Reapplying configuration"
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router_rp1_200_destroy
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ip link add name $rp1.200 link $rp1 addrgenmode none type vlan id 200
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ip stats set dev $rp1.200 l3_stats on
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ip link set dev $rp1.200 up addrgenmode eui64
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ip address add dev $rp1.200 192.0.2.2/28
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ip address add dev $rp1.200 2001:db8:1::2/64
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}
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__test_stats_report()
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{
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local dir=$1; shift
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local prot=$1; shift
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local a
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local b
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RET=0
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a=$(get_l3_stat ${dir}.packets)
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send_packets_${dir}_${prot}
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ip address flush dev $rp1.200
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b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \
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get_l3_stat ${dir}.packets)
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check_err $? "Traffic not reflected in the counter: $a -> $b"
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log_test "Test ${dir} packets: stats pushed on loss of L3"
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ip stats set dev $rp1.200 l3_stats off
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ip link del dev $rp1.200
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router_rp1_200_create
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}
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test_stats_report_rx()
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{
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__test_stats_report rx ipv4
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}
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test_stats_report_tx()
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{
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__test_stats_report tx ipv4
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}
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test_destroy_enabled()
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{
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RET=0
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ip link del dev $rp1.200
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router_rp1_200_create
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log_test "Destroy l3_stats-enabled netdev"
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}
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test_double_enable()
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{
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RET=0
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___test_stats rx ipv4 \
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ip stats set dev $rp1.200 l3_stats on
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log_test "Test stat retention across a spurious enablement"
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}
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trap cleanup EXIT
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setup_prepare
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setup_wait
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tests_run
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exit $EXIT_STATUS
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