selftests: mlxsw: RED: Add selftests for the mark qevent
Add do_mark_test(), which is to do_ecn_test() like do_drop_test() is to do_red_test(): meant to test that actions on the RED mark qevent block are offloaded, and executed on ECN-marked packets. The test splits install_qdisc() into its constituents, install_root_qdisc() and install_qdisc_tcX(). This is in order to test that when mirroring is enabled on one TC, the other TC does not mirror. 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
a703b5179b
commit
0cd6fa99a0
@ -544,6 +544,53 @@ do_mc_backlog_test()
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log_test "TC $((vlan - 10)): Qdisc reports MC backlog"
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}
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do_mark_test()
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{
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local vlan=$1; shift
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local limit=$1; shift
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local subtest=$1; shift
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local fetch_counter=$1; shift
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local should_fail=$1; shift
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local base
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RET=0
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start_tcp_traffic $h1.$vlan $(ipaddr 1 $vlan) $(ipaddr 3 $vlan) \
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$h3_mac tos=0x01
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# Create a bit of a backlog and observe no mirroring due to marks.
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qevent_rule_install_$subtest
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build_backlog $vlan $((2 * limit / 3)) tcp tos=0x01 >/dev/null
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base=$($fetch_counter)
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count=$(busywait 1100 until_counter_is ">= $((base + 1))" \
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$fetch_counter)
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check_fail $? "Spurious packets ($base -> $count) observed without buffer pressure"
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# Above limit, everything should be mirrored, we should see lots of
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# packets.
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build_backlog $vlan $((3 * limit / 2)) tcp tos=0x01 >/dev/null
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busywait_for_counter 1100 +10000 \
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$fetch_counter > /dev/null
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check_err_fail "$should_fail" $? "ECN-marked packets $subtest'd"
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# When the rule is uninstalled, there should be no mirroring.
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qevent_rule_uninstall_$subtest
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busywait_for_counter 1100 +10 \
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$fetch_counter > /dev/null
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check_fail $? "Spurious packets observed after uninstall"
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if ((should_fail)); then
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log_test "TC $((vlan - 10)): marked packets not $subtest'd"
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else
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log_test "TC $((vlan - 10)): marked packets $subtest'd"
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fi
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stop_traffic
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sleep 1
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}
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do_drop_test()
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{
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local vlan=$1; shift
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@ -626,6 +673,22 @@ do_drop_mirror_test()
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tc filter del dev $h2 ingress pref 1 handle 101 flower
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}
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do_mark_mirror_test()
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{
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local vlan=$1; shift
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local limit=$1; shift
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tc filter add dev $h2 ingress pref 1 handle 101 prot ip \
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flower skip_sw ip_proto tcp \
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action drop
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do_mark_test "$vlan" "$limit" mirror \
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qevent_counter_fetch_mirror \
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$(: should_fail=)0
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tc filter del dev $h2 ingress pref 1 handle 101 flower
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}
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qevent_rule_install_trap()
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{
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tc filter add block 10 pref 1234 handle 102 matchall skip_sw \
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@ -653,3 +716,14 @@ do_drop_trap_test()
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do_drop_test "$vlan" "$limit" "$trap_name" trap \
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"qevent_counter_fetch_trap $trap_name"
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}
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qevent_rule_install_trap_fwd()
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{
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tc filter add block 10 pref 1234 handle 102 matchall skip_sw \
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action trap_fwd hw_stats disabled
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}
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qevent_rule_uninstall_trap_fwd()
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{
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tc filter del block 10 pref 1234 handle 102 matchall
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}
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@ -9,6 +9,7 @@ ALL_TESTS="
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mc_backlog_test
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red_mirror_test
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red_trap_test
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ecn_mirror_test
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"
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: ${QDISC:=ets}
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source sch_red_core.sh
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@ -21,26 +22,58 @@ source sch_red_core.sh
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BACKLOG1=200000
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BACKLOG2=500000
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install_qdisc()
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install_root_qdisc()
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{
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tc qdisc add dev $swp3 root handle 10: $QDISC \
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bands 8 priomap 7 6 5 4 3 2 1 0
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}
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install_qdisc_tc0()
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{
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local -a args=("$@")
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tc qdisc add dev $swp3 root handle 10: $QDISC \
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bands 8 priomap 7 6 5 4 3 2 1 0
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tc qdisc add dev $swp3 parent 10:8 handle 108: red \
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limit 1000000 min $BACKLOG1 max $((BACKLOG1 + 1)) \
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probability 1.0 avpkt 8000 burst 38 "${args[@]}"
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}
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install_qdisc_tc1()
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{
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local -a args=("$@")
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tc qdisc add dev $swp3 parent 10:7 handle 107: red \
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limit 1000000 min $BACKLOG2 max $((BACKLOG2 + 1)) \
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probability 1.0 avpkt 8000 burst 63 "${args[@]}"
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}
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install_qdisc()
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{
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install_root_qdisc
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install_qdisc_tc0 "$@"
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install_qdisc_tc1 "$@"
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sleep 1
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}
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uninstall_qdisc_tc0()
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{
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tc qdisc del dev $swp3 parent 10:8
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}
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uninstall_qdisc_tc1()
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{
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tc qdisc del dev $swp3 parent 10:7
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}
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uninstall_root_qdisc()
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{
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tc qdisc del dev $swp3 root
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}
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uninstall_qdisc()
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{
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tc qdisc del dev $swp3 parent 10:7
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tc qdisc del dev $swp3 parent 10:8
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tc qdisc del dev $swp3 root
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uninstall_qdisc_tc0
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uninstall_qdisc_tc1
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uninstall_root_qdisc
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}
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ecn_test()
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@ -112,6 +145,16 @@ red_trap_test()
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uninstall_qdisc
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}
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ecn_mirror_test()
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{
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install_qdisc ecn qevent mark block 10
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do_mark_mirror_test 10 $BACKLOG1
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do_mark_mirror_test 11 $BACKLOG2
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uninstall_qdisc
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}
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trap cleanup EXIT
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setup_prepare
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