a9fda7a0b0
Running this test makes little sense if the enabled l3_stats are not actually reported as "used". This can signify a failure of a driver to install the necessary counters, or simply lack of support for enabling in-HW counters on a given netdevice. It is generally impossible to tell from the outside which it is. But more likely than not, if somebody is running this on veth pairs, they do not intend to actually test that a certain piece of HW can install in-HW counters for the veth. It is more likely they are e.g. running the test by mistake. Therefore detect that the counter has not been actually installed. In that case, if the netdevice is one end of a veth pair, SKIP. Otherwise FAIL. Suggested-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Tested-by: Hangbin Liu <liuhangbin@gmail.com> Link: https://lore.kernel.org/r/a86817961903cca5cb0aebf2b2a06294b8aa7dea.1680704172.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
338 lines
7.4 KiB
Bash
Executable File
338 lines
7.4 KiB
Bash
Executable File
#!/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 $h1.200 2001:db8:2::1 " IPv6"
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}
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send_packets_rx_ipv4()
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{
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# Send 21 packets instead of 20, because the first one might trap and go
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# through the SW datapath, which might not bump the HW counter.
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$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=$1; shift
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local a
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local b
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a=$(hw_stats_get l3_stats $rp1.200 ${dir} packets)
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send_packets_${dir}_${prot}
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"$@"
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b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \
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hw_stats_get l3_stats $rp1.200 ${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=$1; shift
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local a
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local b
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RET=0
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a=$(hw_stats_get l3_stats $rp1.200 ${dir} packets)
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send_packets_${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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hw_stats_get l3_stats $rp1.200 ${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 $rp1.200 l3_stats on
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log_test "Test stat retention across a spurious enablement"
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}
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trap cleanup EXIT
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setup_prepare
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setup_wait
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used=$(ip -j stats show dev $rp1.200 group offload subgroup hw_stats_info |
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jq '.[].info.l3_stats.used')
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kind=$(ip -j -d link show dev $rp1 |
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jq -r '.[].linkinfo.info_kind')
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if [[ $used != true ]]; then
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if [[ $kind == veth ]]; then
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log_test_skip "l3_stats not offloaded on veth interface"
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EXIT_STATUS=$ksft_skip
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else
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RET=1 log_test "l3_stats not offloaded"
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fi
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else
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tests_run
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fi
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exit $EXIT_STATUS
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