diff options
Diffstat (limited to 'tools/testing/selftests/drivers/net/mlxsw/qos_ets_strict.sh')
| -rwxr-xr-x | tools/testing/selftests/drivers/net/mlxsw/qos_ets_strict.sh | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_ets_strict.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_ets_strict.sh new file mode 100755 index 000000000000..6d1790b5de7a --- /dev/null +++ b/tools/testing/selftests/drivers/net/mlxsw/qos_ets_strict.sh @@ -0,0 +1,311 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# A test for strict prioritization of traffic in the switch. Run two streams of +# traffic, each through a different ingress port, one tagged with PCP of 1, the +# other with PCP of 2. Both streams converge at one egress port, where they are +# assigned TC of, respectively, 1 and 2, with strict priority configured between +# them. In H3, we expect to see (almost) exclusively the high-priority traffic. +# +# Please see qos_mc_aware.sh for an explanation of why we use mausezahn and +# counters instead of just running iperf3. +# +# +---------------------------+ +-----------------------------+ +# | H1 | | H2 | +# | $h1.111 + | | + $h2.222 | +# | 192.0.2.33/28 | | | | 192.0.2.65/28 | +# | e-qos-map 0:1 | | | | e-qos-map 0:2 | +# | | | | | | +# | $h1 + | | + $h2 | +# +-----------------|---------+ +---------|-------------------+ +# | | +# +-----------------|-------------------------------------|-------------------+ +# | $swp1 + + $swp2 | +# | >1Gbps | | >1Gbps | +# | +---------------|-----------+ +----------|----------------+ | +# | | $swp1.111 + | | + $swp2.222 | | +# | | BR111 | SW | BR222 | | +# | | $swp3.111 + | | + $swp3.222 | | +# | +---------------|-----------+ +----------|----------------+ | +# | \_____________________________________/ | +# | | | +# | + $swp3 | +# | | 1Gbps bottleneck | +# | | ETS: (up n->tc n for n in 0..7) | +# | | strict priority | +# +------------------------------------|--------------------------------------+ +# | +# +--------------------|--------------------+ +# | + $h3 H3 | +# | / \ | +# | / \ | +# | $h3.111 + + $h3.222 | +# | 192.0.2.34/28 192.0.2.66/28 | +# +-----------------------------------------+ + +ALL_TESTS=" + ping_ipv4 + test_ets_strict +" + +lib_dir=$(dirname $0)/../../../net/forwarding + +NUM_NETIFS=6 +source $lib_dir/lib.sh +source $lib_dir/devlink_lib.sh +source qos_lib.sh + +h1_create() +{ + simple_if_init $h1 + mtu_set $h1 10000 + + vlan_create $h1 111 v$h1 192.0.2.33/28 + ip link set dev $h1.111 type vlan egress-qos-map 0:1 +} + +h1_destroy() +{ + vlan_destroy $h1 111 + + mtu_restore $h1 + simple_if_fini $h1 +} + +h2_create() +{ + simple_if_init $h2 + mtu_set $h2 10000 + + vlan_create $h2 222 v$h2 192.0.2.65/28 + ip link set dev $h2.222 type vlan egress-qos-map 0:2 +} + +h2_destroy() +{ + vlan_destroy $h2 222 + + mtu_restore $h2 + simple_if_fini $h2 +} + +h3_create() +{ + simple_if_init $h3 + mtu_set $h3 10000 + + vlan_create $h3 111 v$h3 192.0.2.34/28 + vlan_create $h3 222 v$h3 192.0.2.66/28 +} + +h3_destroy() +{ + vlan_destroy $h3 222 + vlan_destroy $h3 111 + + mtu_restore $h3 + simple_if_fini $h3 +} + +switch_create() +{ + ip link set dev $swp1 up + mtu_set $swp1 10000 + + ip link set dev $swp2 up + mtu_set $swp2 10000 + + # prio n -> TC n, strict scheduling + lldptool -T -i $swp3 -V ETS-CFG up2tc=0:0,1:1,2:2,3:3,4:4,5:5,6:6,7:7 + lldptool -T -i $swp3 -V ETS-CFG tsa=$( + )"0:strict,"$( + )"1:strict,"$( + )"2:strict,"$( + )"3:strict,"$( + )"4:strict,"$( + )"5:strict,"$( + )"6:strict,"$( + )"7:strict" + sleep 1 + + ip link set dev $swp3 up + mtu_set $swp3 10000 + ethtool -s $swp3 speed 1000 autoneg off + + vlan_create $swp1 111 + vlan_create $swp2 222 + vlan_create $swp3 111 + vlan_create $swp3 222 + + ip link add name br111 up type bridge vlan_filtering 0 + ip link set dev $swp1.111 master br111 + ip link set dev $swp3.111 master br111 + + ip link add name br222 up type bridge vlan_filtering 0 + ip link set dev $swp2.222 master br222 + ip link set dev $swp3.222 master br222 + + # Make sure that ingress quotas are smaller than egress so that there is + # room for both streams of traffic to be admitted to shared buffer. + devlink_pool_size_thtype_set 0 dynamic 10000000 + devlink_pool_size_thtype_set 4 dynamic 10000000 + + devlink_port_pool_th_set $swp1 0 6 + devlink_tc_bind_pool_th_set $swp1 1 ingress 0 6 + + devlink_port_pool_th_set $swp2 0 6 + devlink_tc_bind_pool_th_set $swp2 2 ingress 0 6 + + devlink_tc_bind_pool_th_set $swp3 1 egress 4 7 + devlink_tc_bind_pool_th_set $swp3 2 egress 4 7 + devlink_port_pool_th_set $swp3 4 7 +} + +switch_destroy() +{ + devlink_port_pool_th_restore $swp3 4 + devlink_tc_bind_pool_th_restore $swp3 2 egress + devlink_tc_bind_pool_th_restore $swp3 1 egress + + devlink_tc_bind_pool_th_restore $swp2 2 ingress + devlink_port_pool_th_restore $swp2 0 + + devlink_tc_bind_pool_th_restore $swp1 1 ingress + devlink_port_pool_th_restore $swp1 0 + + devlink_pool_size_thtype_restore 4 + devlink_pool_size_thtype_restore 0 + + ip link del dev br222 + ip link del dev br111 + + vlan_destroy $swp3 222 + vlan_destroy $swp3 111 + vlan_destroy $swp2 222 + vlan_destroy $swp1 111 + + ethtool -s $swp3 autoneg on + mtu_restore $swp3 + ip link set dev $swp3 down + lldptool -T -i $swp3 -V ETS-CFG up2tc=0:0,1:0,2:0,3:0,4:0,5:0,6:0,7:0 + + mtu_restore $swp2 + ip link set dev $swp2 down + + mtu_restore $swp1 + ip link set dev $swp1 down +} + +setup_prepare() +{ + h1=${NETIFS[p1]} + swp1=${NETIFS[p2]} + + swp2=${NETIFS[p3]} + h2=${NETIFS[p4]} + + swp3=${NETIFS[p5]} + h3=${NETIFS[p6]} + + h3mac=$(mac_get $h3) + + vrf_prepare + + h1_create + h2_create + h3_create + switch_create +} + +cleanup() +{ + pre_cleanup + + switch_destroy + h3_destroy + h2_destroy + h1_destroy + + vrf_cleanup +} + +ping_ipv4() +{ + ping_test $h1 192.0.2.34 " from H1" + ping_test $h2 192.0.2.66 " from H2" +} + +rel() +{ + local old=$1; shift + local new=$1; shift + + bc <<< " + scale=2 + ret = 100 * $new / $old + if (ret > 0) { ret } else { 0 } + " +} + +test_ets_strict() +{ + RET=0 + + # Run high-prio traffic on its own. + start_traffic $h2.222 192.0.2.65 192.0.2.66 $h3mac + local -a rate_2 + rate_2=($(measure_rate $swp2 $h3 rx_octets_prio_2 "prio 2")) + check_err $? "Could not get high enough prio-2 ingress rate" + local rate_2_in=${rate_2[0]} + local rate_2_eg=${rate_2[1]} + stop_traffic # $h2.222 + + # Start low-prio stream. + start_traffic $h1.111 192.0.2.33 192.0.2.34 $h3mac + + local -a rate_1 + rate_1=($(measure_rate $swp1 $h3 rx_octets_prio_1 "prio 1")) + check_err $? "Could not get high enough prio-1 ingress rate" + local rate_1_in=${rate_1[0]} + local rate_1_eg=${rate_1[1]} + + # High-prio and low-prio on their own should have about the same + # throughput. + local rel21=$(rel $rate_1_eg $rate_2_eg) + check_err $(bc <<< "$rel21 < 95") + check_err $(bc <<< "$rel21 > 105") + + # Start the high-prio stream--now both streams run. + start_traffic $h2.222 192.0.2.65 192.0.2.66 $h3mac + rate_3=($(measure_rate $swp2 $h3 rx_octets_prio_2 "prio 2 w/ 1")) + check_err $? "Could not get high enough prio-2 ingress rate with prio-1" + local rate_3_in=${rate_3[0]} + local rate_3_eg=${rate_3[1]} + stop_traffic # $h2.222 + + stop_traffic # $h1.111 + + # High-prio should have about the same throughput whether or not + # low-prio is in the system. + local rel32=$(rel $rate_2_eg $rate_3_eg) + check_err $(bc <<< "$rel32 < 95") + + log_test "strict priority" + echo "Ingress to switch:" + echo " p1 in rate $(humanize $rate_1_in)" + echo " p2 in rate $(humanize $rate_2_in)" + echo " p2 in rate w/ p1 $(humanize $rate_3_in)" + echo "Egress from switch:" + echo " p1 eg rate $(humanize $rate_1_eg)" + echo " p2 eg rate $(humanize $rate_2_eg) ($rel21% of p1)" + echo " p2 eg rate w/ p1 $(humanize $rate_3_eg) ($rel32% of p2)" +} + +trap cleanup EXIT + +setup_prepare +setup_wait + +tests_run + +exit $EXIT_STATUS |