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hw_stats_l3.sh
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linux-6.19.14/tools/testing/selftests/drivers/net/hw/hw_stats_l3.sh
1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3 4# +--------------------+ +----------------------+ 5# | H1 | | H2 | 6# | | | | 7# | $h1.200 + | | + $h2.200 | 8# | 192.0.2.1/28 | | | | 192.0.2.18/28 | 9# | 2001:db8:1::1/64 | | | | 2001:db8:2::1/64 | 10# | | | | | | 11# | $h1 + | | + $h2 | 12# | | | | | | 13# +------------------|-+ +-|--------------------+ 14# | | 15# +------------------|-------------------------|--------------------+ 16# | SW | | | 17# | | | | 18# | $rp1 + + $rp2 | 19# | | | | 20# | $rp1.200 + + $rp2.200 | 21# | 192.0.2.2/28 192.0.2.17/28 | 22# | 2001:db8:1::2/64 2001:db8:2::2/64 | 23# | | 24# +-----------------------------------------------------------------+ 25 26ALL_TESTS=" 27 ping_ipv4 28 ping_ipv6 29 test_stats_rx_ipv4 30 test_stats_tx_ipv4 31 test_stats_rx_ipv6 32 test_stats_tx_ipv6 33 respin_enablement 34 test_stats_rx_ipv4 35 test_stats_tx_ipv4 36 test_stats_rx_ipv6 37 test_stats_tx_ipv6 38 reapply_config 39 ping_ipv4 40 ping_ipv6 41 test_stats_rx_ipv4 42 test_stats_tx_ipv4 43 test_stats_rx_ipv6 44 test_stats_tx_ipv6 45 test_stats_report_rx 46 test_stats_report_tx 47 test_destroy_enabled 48 test_double_enable 49" 50NUM_NETIFS=4 51lib_dir=$(dirname "$0") 52source "$lib_dir"/../../../net/forwarding/lib.sh 53source "$lib_dir"/../../../net/forwarding/tc_common.sh 54 55h1_create() 56{ 57 simple_if_init $h1 58 vlan_create $h1 200 v$h1 192.0.2.1/28 2001:db8:1::1/64 59 ip route add 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2 60 ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2 61} 62 63h1_destroy() 64{ 65 ip -6 route del 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2 66 ip route del 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2 67 vlan_destroy $h1 200 68 simple_if_fini $h1 69} 70 71h2_create() 72{ 73 simple_if_init $h2 74 vlan_create $h2 200 v$h2 192.0.2.18/28 2001:db8:2::1/64 75 ip route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.17 76 ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::2 77} 78 79h2_destroy() 80{ 81 ip -6 route del 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::2 82 ip route del 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.17 83 vlan_destroy $h2 200 84 simple_if_fini $h2 85} 86 87router_rp1_200_create() 88{ 89 ip link add name $rp1.200 link $rp1 type vlan id 200 90 ip link set dev $rp1.200 addrgenmode eui64 91 ip link set dev $rp1.200 up 92 ip address add dev $rp1.200 192.0.2.2/28 93 ip address add dev $rp1.200 2001:db8:1::2/64 94 ip stats set dev $rp1.200 l3_stats on 95} 96 97router_rp1_200_destroy() 98{ 99 ip stats set dev $rp1.200 l3_stats off 100 ip address del dev $rp1.200 2001:db8:1::2/64 101 ip address del dev $rp1.200 192.0.2.2/28 102 ip link del dev $rp1.200 103} 104 105router_create() 106{ 107 ip link set dev $rp1 up 108 router_rp1_200_create 109 110 ip link set dev $rp2 up 111 vlan_create $rp2 200 "" 192.0.2.17/28 2001:db8:2::2/64 112} 113 114router_destroy() 115{ 116 vlan_destroy $rp2 200 117 ip link set dev $rp2 down 118 119 router_rp1_200_destroy 120 ip link set dev $rp1 down 121} 122 123setup_prepare() 124{ 125 h1=${NETIFS[p1]} 126 rp1=${NETIFS[p2]} 127 128 rp2=${NETIFS[p3]} 129 h2=${NETIFS[p4]} 130 131 rp1mac=$(mac_get $rp1) 132 rp2mac=$(mac_get $rp2) 133 134 vrf_prepare 135 136 h1_create 137 h2_create 138 139 router_create 140 141 forwarding_enable 142} 143 144cleanup() 145{ 146 pre_cleanup 147 148 forwarding_restore 149 150 router_destroy 151 152 h2_destroy 153 h1_destroy 154 155 vrf_cleanup 156} 157 158ping_ipv4() 159{ 160 ping_test $h1.200 192.0.2.18 " IPv4" 161} 162 163ping_ipv6() 164{ 165 ping_test $h1.200 2001:db8:2::1 " IPv6" 166} 167 168send_packets_rx_ipv4() 169{ 170 # Send 21 packets instead of 20, because the first one might trap and go 171 # through the SW datapath, which might not bump the HW counter. 172 $MZ $h1.200 -c 21 -d 20msec -p 100 \ 173 -a own -b $rp1mac -A 192.0.2.1 -B 192.0.2.18 \ 174 -q -t udp sp=54321,dp=12345 175} 176 177send_packets_rx_ipv6() 178{ 179 $MZ $h1.200 -6 -c 21 -d 20msec -p 100 \ 180 -a own -b $rp1mac -A 2001:db8:1::1 -B 2001:db8:2::1 \ 181 -q -t udp sp=54321,dp=12345 182} 183 184send_packets_tx_ipv4() 185{ 186 $MZ $h2.200 -c 21 -d 20msec -p 100 \ 187 -a own -b $rp2mac -A 192.0.2.18 -B 192.0.2.1 \ 188 -q -t udp sp=54321,dp=12345 189} 190 191send_packets_tx_ipv6() 192{ 193 $MZ $h2.200 -6 -c 21 -d 20msec -p 100 \ 194 -a own -b $rp2mac -A 2001:db8:2::1 -B 2001:db8:1::1 \ 195 -q -t udp sp=54321,dp=12345 196} 197 198___test_stats() 199{ 200 local dir=$1; shift 201 local prot=$1; shift 202 203 local a 204 local b 205 206 a=$(hw_stats_get l3_stats $rp1.200 ${dir} packets) 207 send_packets_${dir}_${prot} 208 "$@" 209 b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \ 210 hw_stats_get l3_stats $rp1.200 ${dir} packets) 211 check_err $? "Traffic not reflected in the counter: $a -> $b" 212} 213 214__test_stats() 215{ 216 local dir=$1; shift 217 local prot=$1; shift 218 219 RET=0 220 ___test_stats "$dir" "$prot" 221 log_test "Test $dir packets: $prot" 222} 223 224test_stats_rx_ipv4() 225{ 226 __test_stats rx ipv4 227} 228 229test_stats_tx_ipv4() 230{ 231 __test_stats tx ipv4 232} 233 234test_stats_rx_ipv6() 235{ 236 __test_stats rx ipv6 237} 238 239test_stats_tx_ipv6() 240{ 241 __test_stats tx ipv6 242} 243 244# Make sure everything works well even after stats have been disabled and 245# reenabled on the same device without touching the L3 configuration. 246respin_enablement() 247{ 248 log_info "Turning stats off and on again" 249 ip stats set dev $rp1.200 l3_stats off 250 ip stats set dev $rp1.200 l3_stats on 251} 252 253# For the initial run, l3_stats is enabled on a completely set up netdevice. Now 254# do it the other way around: enabling the L3 stats on an L2 netdevice, and only 255# then apply the L3 configuration. 256reapply_config() 257{ 258 log_info "Reapplying configuration" 259 260 router_rp1_200_destroy 261 262 ip link add name $rp1.200 link $rp1 type vlan id 200 263 ip link set dev $rp1.200 addrgenmode none 264 ip stats set dev $rp1.200 l3_stats on 265 ip link set dev $rp1.200 addrgenmode eui64 266 ip link set dev $rp1.200 up 267 ip address add dev $rp1.200 192.0.2.2/28 268 ip address add dev $rp1.200 2001:db8:1::2/64 269} 270 271__test_stats_report() 272{ 273 local dir=$1; shift 274 local prot=$1; shift 275 276 local a 277 local b 278 279 RET=0 280 281 a=$(hw_stats_get l3_stats $rp1.200 ${dir} packets) 282 send_packets_${dir}_${prot} 283 ip address flush dev $rp1.200 284 b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \ 285 hw_stats_get l3_stats $rp1.200 ${dir} packets) 286 check_err $? "Traffic not reflected in the counter: $a -> $b" 287 log_test "Test ${dir} packets: stats pushed on loss of L3" 288 289 ip stats set dev $rp1.200 l3_stats off 290 ip link del dev $rp1.200 291 router_rp1_200_create 292} 293 294test_stats_report_rx() 295{ 296 __test_stats_report rx ipv4 297} 298 299test_stats_report_tx() 300{ 301 __test_stats_report tx ipv4 302} 303 304test_destroy_enabled() 305{ 306 RET=0 307 308 ip link del dev $rp1.200 309 router_rp1_200_create 310 311 log_test "Destroy l3_stats-enabled netdev" 312} 313 314test_double_enable() 315{ 316 RET=0 317 ___test_stats rx ipv4 \ 318 ip stats set dev $rp1.200 l3_stats on 319 log_test "Test stat retention across a spurious enablement" 320} 321 322trap cleanup EXIT 323 324setup_prepare 325setup_wait 326 327used=$(ip -j stats show dev $rp1.200 group offload subgroup hw_stats_info | 328 jq '.[].info.l3_stats.used') 329[[ $used = true ]] 330check_err $? "hw_stats_info.used=$used" 331log_test "l3_stats offloaded" 332tests_run 333 334exit $EXIT_STATUS
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