f61018dc3e
In a future patch, mlxsw will start adding RIFs to uppers of front panel port netdevices, if they have an IP address. At the time that the front panel port is enslaved to the bridge, the bridge MAC address does not have the same prefix as other interfaces in the system. On Nvidia Spectrum-1 machines all the RIFs have to have the same 38-bit MAC address prefix. Since the bridge does not obey this limitation, the RIF cannot be created, and the enslavement attempt is vetoed on the grounds of the configuration not being offloadable. The selftest itself however checks whether skbedit changes packet priority as appropriate. The bridge thus does not need to participate in routing traffic and the IP address or the RIF are irrelevant. Fix by disabling automatic IPv6 address generation for the HW-offloaded bridge in this selftest, thus exempting it from mlxsw router attention. Since the bridge is only used for L2 forwarding, this change should not hinder usefulness of this selftest for testing SW datapath or HW datapaths in other devices. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
173 lines
3.9 KiB
Bash
Executable File
173 lines
3.9 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on
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# egress of $swp2, the traffic is acted upon by an action skbedit priority. The
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# new priority should be taken into account when classifying traffic on the PRIO
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# qdisc at $swp2. The test verifies that for different priority values, the
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# traffic ends up in expected PRIO band.
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#
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# +----------------------+ +----------------------+
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# | H1 | | H2 |
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# | + $h1 | | $h2 + |
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# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
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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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# | | + $swp1 BR $swp2 + | |
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# | | PRIO | |
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# | +--------------------------------------------------------------------+ |
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# +---------------------------------------------------------------------------+
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ALL_TESTS="
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ping_ipv4
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test_ingress
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test_egress
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"
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NUM_NETIFS=4
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source lib.sh
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: ${HIT_TIMEOUT:=2000} # ms
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h1_create()
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{
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simple_if_init $h1 192.0.2.1/28
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}
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h1_destroy()
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{
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simple_if_fini $h1 192.0.2.1/28
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}
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h2_create()
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{
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simple_if_init $h2 192.0.2.2/28
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}
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h2_destroy()
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{
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simple_if_fini $h2 192.0.2.2/28
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}
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switch_create()
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{
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ip link add name br1 type bridge vlan_filtering 1
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ip link set dev br1 addrgenmode none
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ip link set dev br1 up
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ip link set dev $swp1 master br1
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ip link set dev $swp1 up
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ip link set dev $swp2 master br1
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ip link set dev $swp2 up
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tc qdisc add dev $swp1 clsact
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tc qdisc add dev $swp2 clsact
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tc qdisc add dev $swp2 root handle 10: \
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prio bands 8 priomap 7 6 5 4 3 2 1 0
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}
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switch_destroy()
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{
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tc qdisc del dev $swp2 root
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tc qdisc del dev $swp2 clsact
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tc qdisc del dev $swp1 clsact
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ip link set dev $swp2 down
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ip link set dev $swp2 nomaster
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ip link set dev $swp1 down
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ip link set dev $swp1 nomaster
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ip link del dev br1
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}
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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swp1=${NETIFS[p2]}
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swp2=${NETIFS[p3]}
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h2=${NETIFS[p4]}
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h2mac=$(mac_get $h2)
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vrf_prepare
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h1_create
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h2_create
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switch_create
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}
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cleanup()
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{
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pre_cleanup
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switch_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 192.0.2.2
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}
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test_skbedit_priority_one()
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{
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local locus=$1; shift
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local prio=$1; shift
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local classid=$1; shift
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RET=0
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tc filter add $locus handle 101 pref 1 \
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flower action skbedit priority $prio
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local pkt0=$(qdisc_parent_stats_get $swp2 $classid .packets)
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local pkt2=$(tc_rule_handle_stats_get "$locus" 101)
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$MZ $h1 -t udp "sp=54321,dp=12345" -c 10 -d 20msec -p 100 \
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-a own -b $h2mac -A 192.0.2.1 -B 192.0.2.2 -q
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local pkt1
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pkt1=$(busywait "$HIT_TIMEOUT" until_counter_is ">= $((pkt0 + 10))" \
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qdisc_parent_stats_get $swp2 $classid .packets)
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check_err $? "Expected to get 10 packets on class $classid, but got $((pkt1 - pkt0))."
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local pkt3=$(tc_rule_handle_stats_get "$locus" 101)
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((pkt3 >= pkt2 + 10))
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check_err $? "Expected to get 10 packets on skbedit rule but got $((pkt3 - pkt2))."
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log_test "$locus skbedit priority $prio -> classid $classid"
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tc filter del $locus pref 1
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}
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test_ingress()
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{
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local prio
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for prio in {0..7}; do
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test_skbedit_priority_one "dev $swp1 ingress" \
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$prio 10:$((8 - prio))
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done
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}
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test_egress()
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{
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local prio
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for prio in {0..7}; do
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test_skbedit_priority_one "dev $swp2 egress" \
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$prio 10:$((8 - prio))
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done
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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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