diff options
Diffstat (limited to 'tools/testing/selftests/drivers/net/mlxsw/sch_red_core.sh')
| -rw-r--r-- | tools/testing/selftests/drivers/net/mlxsw/sch_red_core.sh | 129 |
1 files changed, 126 insertions, 3 deletions
diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_red_core.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_red_core.sh index 0d347d48c112..517297a14ecf 100644 --- a/tools/testing/selftests/drivers/net/mlxsw/sch_red_core.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/sch_red_core.sh @@ -121,6 +121,7 @@ h1_destroy() h2_create() { host_create $h2 2 + tc qdisc add dev $h2 clsact # Some of the tests in this suite use multicast traffic. As this traffic # enters BR2_10 resp. BR2_11, it is flooded to all other ports. Thus @@ -141,6 +142,7 @@ h2_create() h2_destroy() { ethtool -s $h2 autoneg on + tc qdisc del dev $h2 clsact host_destroy $h2 } @@ -336,6 +338,17 @@ get_qdisc_npackets() qdisc_stats_get $swp3 $(get_qdisc_handle $vlan) .packets } +send_packets() +{ + local vlan=$1; shift + local proto=$1; shift + local pkts=$1; shift + + $MZ $h2.$vlan -p 8000 -a own -b $h3_mac \ + -A $(ipaddr 2 $vlan) -B $(ipaddr 3 $vlan) \ + -t $proto -q -c $pkts "$@" +} + # This sends traffic in an attempt to build a backlog of $size. Returns 0 on # success. After 10 failed attempts it bails out and returns 1. It dumps the # backlog size to stdout. @@ -364,9 +377,7 @@ build_backlog() return 1 fi - $MZ $h2.$vlan -p 8000 -a own -b $h3_mac \ - -A $(ipaddr 2 $vlan) -B $(ipaddr 3 $vlan) \ - -t $proto -q -c $pkts "$@" + send_packets $vlan $proto $pkts "$@" done } @@ -531,3 +542,115 @@ do_mc_backlog_test() log_test "TC $((vlan - 10)): Qdisc reports MC backlog" } + +do_drop_test() +{ + local vlan=$1; shift + local limit=$1; shift + local trigger=$1; shift + local subtest=$1; shift + local fetch_counter=$1; shift + local backlog + local base + local now + local pct + + RET=0 + + start_traffic $h1.$vlan $(ipaddr 1 $vlan) $(ipaddr 3 $vlan) $h3_mac + + # Create a bit of a backlog and observe no mirroring due to drops. + qevent_rule_install_$subtest + base=$($fetch_counter) + + build_backlog $vlan $((2 * limit / 3)) udp >/dev/null + + busywait 1100 until_counter_is ">= $((base + 1))" $fetch_counter >/dev/null + check_fail $? "Spurious packets observed without buffer pressure" + + # Push to the queue until it's at the limit. The configured limit is + # rounded by the qdisc and then by the driver, so this is the best we + # can do to get to the real limit of the system. + build_backlog $vlan $((3 * limit / 2)) udp >/dev/null + + base=$($fetch_counter) + send_packets $vlan udp 11 + + now=$(busywait 1100 until_counter_is ">= $((base + 10))" $fetch_counter) + check_err $? "Dropped packets not observed: 11 expected, $((now - base)) seen" + + # When no extra traffic is injected, there should be no mirroring. + busywait 1100 until_counter_is ">= $((base + 20))" $fetch_counter >/dev/null + check_fail $? "Spurious packets observed" + + # When the rule is uninstalled, there should be no mirroring. + qevent_rule_uninstall_$subtest + send_packets $vlan udp 11 + busywait 1100 until_counter_is ">= $((base + 20))" $fetch_counter >/dev/null + check_fail $? "Spurious packets observed after uninstall" + + log_test "TC $((vlan - 10)): ${trigger}ped packets $subtest'd" + + stop_traffic + sleep 1 +} + +qevent_rule_install_mirror() +{ + tc filter add block 10 pref 1234 handle 102 matchall skip_sw \ + action mirred egress mirror dev $swp2 hw_stats disabled +} + +qevent_rule_uninstall_mirror() +{ + tc filter del block 10 pref 1234 handle 102 matchall +} + +qevent_counter_fetch_mirror() +{ + tc_rule_handle_stats_get "dev $h2 ingress" 101 +} + +do_drop_mirror_test() +{ + local vlan=$1; shift + local limit=$1; shift + local qevent_name=$1; shift + + tc filter add dev $h2 ingress pref 1 handle 101 prot ip \ + flower skip_sw ip_proto udp \ + action drop + + do_drop_test "$vlan" "$limit" "$qevent_name" mirror \ + qevent_counter_fetch_mirror + + tc filter del dev $h2 ingress pref 1 handle 101 flower +} + +qevent_rule_install_trap() +{ + tc filter add block 10 pref 1234 handle 102 matchall skip_sw \ + action trap hw_stats disabled +} + +qevent_rule_uninstall_trap() +{ + tc filter del block 10 pref 1234 handle 102 matchall +} + +qevent_counter_fetch_trap() +{ + local trap_name=$1; shift + + devlink_trap_rx_packets_get "$trap_name" +} + +do_drop_trap_test() +{ + local vlan=$1; shift + local limit=$1; shift + local trap_name=$1; shift + + do_drop_test "$vlan" "$limit" "$trap_name" trap \ + "qevent_counter_fetch_trap $trap_name" +} |