tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 #
   4 # Test various interface configuration scenarios. Observe that configurations
   5 # deemed valid by mlxsw succeed, invalid configurations fail and that no traces
   6 # are produced. To prevent the test from passing in case traces are produced,
   7 # the user can set the 'kernel.panic_on_warn' and 'kernel.panic_on_oops'
   8 # sysctls in its environment.
   9
  10 lib_dir=$(dirname $0)/../../../net/forwarding
  11
  12 ALL_TESTS="
  13         rif_set_addr_test
  14         rif_inherit_bridge_addr_test
  15         rif_non_inherit_bridge_addr_test
  16         vlan_interface_deletion_test
  17         bridge_deletion_test
  18         bridge_vlan_flags_test
  19         vlan_1_test
  20         lag_bridge_upper_test
  21         duplicate_vlans_test
  22         vlan_rif_refcount_test
  23         subport_rif_refcount_test
  24         vlan_dev_deletion_test
  25         lag_unlink_slaves_test
  26         lag_dev_deletion_test
  27         vlan_interface_uppers_test
  28         bridge_extern_learn_test
  29         devlink_reload_test
  30 "
  31 NUM_NETIFS=2
  32 source $lib_dir/lib.sh
  33 source $lib_dir/devlink_lib.sh
  34
  35 setup_prepare()
  36 {
  37         swp1=${NETIFS[p1]}
  38         swp2=${NETIFS[p2]}
  39
  40         ip link set dev $swp1 up
  41         ip link set dev $swp2 up
  42 }
  43
  44 cleanup()
  45 {
  46         pre_cleanup
  47
  48         ip link set dev $swp2 down
  49         ip link set dev $swp1 down
  50 }
  51
  52 rif_set_addr_test()
  53 {
  54         local swp1_mac=$(mac_get $swp1)
  55         local swp2_mac=$(mac_get $swp2)
  56
  57         RET=0
  58
  59         # $swp1 and $swp2 likely got their IPv6 local addresses already, but
  60         # here we need to test the transition to RIF.
  61         ip addr flush dev $swp1
  62         ip addr flush dev $swp2
  63         sleep .1
  64
  65         ip addr add dev $swp1 192.0.2.1/28
  66         check_err $?
  67
  68         ip link set dev $swp1 addr 00:11:22:33:44:55
  69         check_err $?
  70
  71         # IP address enablement should be rejected if the MAC address prefix
  72         # doesn't match other RIFs.
  73         ip addr add dev $swp2 192.0.2.2/28 &>/dev/null
  74         check_fail $? "IP address addition passed for a device with a wrong MAC"
  75         ip addr add dev $swp2 192.0.2.2/28 2>&1 >/dev/null \
  76             | grep -q mlxsw_spectrum
  77         check_err $? "no extack for IP address addition"
  78
  79         ip link set dev $swp2 addr 00:11:22:33:44:66
  80         check_err $?
  81         ip addr add dev $swp2 192.0.2.2/28 &>/dev/null
  82         check_err $?
  83
  84         # Change of MAC address of a RIF should be forbidden if the new MAC
  85         # doesn't share the prefix with other MAC addresses.
  86         ip link set dev $swp2 addr 00:11:22:33:00:66 &>/dev/null
  87         check_fail $? "change of MAC address passed for a wrong MAC"
  88         ip link set dev $swp2 addr 00:11:22:33:00:66 2>&1 >/dev/null \
  89             | grep -q mlxsw_spectrum
  90         check_err $? "no extack for MAC address change"
  91
  92         log_test "RIF - bad MAC change"
  93
  94         ip addr del dev $swp2 192.0.2.2/28
  95         ip addr del dev $swp1 192.0.2.1/28
  96
  97         ip link set dev $swp2 addr $swp2_mac
  98         ip link set dev $swp1 addr $swp1_mac
  99 }
 100
 101 rif_inherit_bridge_addr_test()
 102 {
 103         RET=0
 104
 105         # Create first RIF
 106         ip addr add dev $swp1 192.0.2.1/28
 107         check_err $?
 108
 109         # Create a FID RIF
 110         ip link add name br1 up type bridge vlan_filtering 0
 111         ip link set dev $swp2 master br1
 112         ip addr add dev br1 192.0.2.17/28
 113         check_err $?
 114
 115         # Prepare a device with a low MAC address
 116         ip link add name d up type dummy
 117         ip link set dev d addr 00:11:22:33:44:55
 118
 119         # Attach the device to br1. That prompts bridge address change, which
 120         # should be vetoed, thus preventing the attachment.
 121         ip link set dev d master br1 &>/dev/null
 122         check_fail $? "Device with low MAC was permitted to attach a bridge with RIF"
 123         ip link set dev d master br1 2>&1 >/dev/null \
 124             | grep -q mlxsw_spectrum
 125         check_err $? "no extack for bridge attach rejection"
 126
 127         ip link set dev $swp2 addr 00:11:22:33:44:55 &>/dev/null
 128         check_fail $? "Changing swp2's MAC address permitted"
 129         ip link set dev $swp2 addr 00:11:22:33:44:55 2>&1 >/dev/null \
 130             | grep -q mlxsw_spectrum
 131         check_err $? "no extack for bridge port MAC address change rejection"
 132
 133         log_test "RIF - attach port with bad MAC to bridge"
 134
 135         ip link del dev d
 136         ip link del dev br1
 137         ip addr del dev $swp1 192.0.2.1/28
 138 }
 139
 140 rif_non_inherit_bridge_addr_test()
 141 {
 142         local swp2_mac=$(mac_get $swp2)
 143
 144         RET=0
 145
 146         # Create first RIF
 147         ip addr add dev $swp1 192.0.2.1/28
 148         check_err $?
 149
 150         # Create a FID RIF
 151         ip link add name br1 up type bridge vlan_filtering 0
 152         ip link set dev br1 addr $swp2_mac
 153         ip link set dev $swp2 master br1
 154         ip addr add dev br1 192.0.2.17/28
 155         check_err $?
 156
 157         # Prepare a device with a low MAC address
 158         ip link add name d up type dummy
 159         ip link set dev d addr 00:11:22:33:44:55
 160
 161         # Attach the device to br1. Since the bridge address was set, it should
 162         # work.
 163         ip link set dev d master br1 &>/dev/null
 164         check_err $? "Could not attach a device with low MAC to a bridge with RIF"
 165
 166         # Port MAC address change should be allowed for a bridge with set MAC.
 167         ip link set dev $swp2 addr 00:11:22:33:44:55
 168         check_err $? "Changing swp2's MAC address not permitted"
 169
 170         log_test "RIF - attach port with bad MAC to bridge with set MAC"
 171
 172         ip link set dev $swp2 addr $swp2_mac
 173         ip link del dev d
 174         ip link del dev br1
 175         ip addr del dev $swp1 192.0.2.1/28
 176 }
 177
 178 vlan_interface_deletion_test()
 179 {
 180         # Test that when a VLAN interface is deleted, its associated router
 181         # interface (RIF) is correctly deleted and not leaked. See commit
 182         # c360867ec46a ("mlxsw: spectrum: Delete RIF when VLAN device is
 183         # removed") for more details
 184         RET=0
 185
 186         ip link add name br0 type bridge vlan_filtering 1
 187         ip link set dev $swp1 master br0
 188
 189         ip link add link br0 name br0.10 type vlan id 10
 190         ip -6 address add 2001:db8:1::1/64 dev br0.10
 191         ip link del dev br0.10
 192
 193         # If we leaked the previous RIF, then this should produce a trace
 194         ip link add link br0 name br0.20 type vlan id 20
 195         ip -6 address add 2001:db8:1::1/64 dev br0.20
 196         ip link del dev br0.20
 197
 198         log_test "vlan interface deletion"
 199
 200         ip link del dev br0
 201 }
 202
 203 bridge_deletion_test()
 204 {
 205         # Test that when a bridge with VLAN interfaces is deleted, we correctly
 206         # delete the associated RIFs. See commit 602b74eda813 ("mlxsw:
 207         # spectrum_switchdev: Do not leak RIFs when removing bridge") for more
 208         # details
 209         RET=0
 210
 211         ip link add name br0 type bridge vlan_filtering 1
 212         ip link set dev $swp1 master br0
 213         ip -6 address add 2001:db8::1/64 dev br0
 214
 215         ip link add link br0 name br0.10 type vlan id 10
 216         ip -6 address add 2001:db8:1::1/64 dev br0.10
 217
 218         ip link add link br0 name br0.20 type vlan id 20
 219         ip -6 address add 2001:db8:2::1/64 dev br0.20
 220
 221         ip link del dev br0
 222
 223         # If we leaked previous RIFs, then this should produce a trace
 224         ip -6 address add 2001:db8:1::1/64 dev $swp1
 225         ip -6 address del 2001:db8:1::1/64 dev $swp1
 226
 227         log_test "bridge deletion"
 228 }
 229
 230 bridge_vlan_flags_test()
 231 {
 232         # Test that when bridge VLAN flags are toggled, we do not take
 233         # unnecessary references on related structs. See commit 9e25826ffc94
 234         # ("mlxsw: spectrum_switchdev: Fix port_vlan refcounting") for more
 235         # details
 236         RET=0
 237
 238         ip link add name br0 type bridge vlan_filtering 1
 239         ip link set dev $swp1 master br0
 240
 241         bridge vlan add vid 10 dev $swp1 pvid untagged
 242         bridge vlan add vid 10 dev $swp1 untagged
 243         bridge vlan add vid 10 dev $swp1 pvid
 244         bridge vlan add vid 10 dev $swp1
 245         ip link del dev br0
 246
 247         # If we did not handle references correctly, then this should produce a
 248         # trace
 249         devlink dev reload "$DEVLINK_DEV"
 250
 251         # Allow netdevices to be re-created following the reload
 252         sleep 20
 253
 254         log_test "bridge vlan flags"
 255 }
 256
 257 vlan_1_test()
 258 {
 259         # Test that VLAN 1 can be configured over mlxsw ports. In the past it
 260         # was used internally for untagged traffic. See commit 47bf9df2e820
 261         # ("mlxsw: spectrum: Forbid creation of VLAN 1 over port/LAG") for more
 262         # details
 263         RET=0
 264
 265         ip link add link $swp1 name $swp1.1 type vlan id 1
 266         check_err $? "did not manage to create vlan 1 when should"
 267
 268         log_test "vlan 1"
 269
 270         ip link del dev $swp1.1
 271 }
 272
 273 lag_bridge_upper_test()
 274 {
 275         # Test that ports cannot be enslaved to LAG devices that have uppers
 276         # and that failure is handled gracefully. See commit b3529af6bb0d
 277         # ("spectrum: Reference count VLAN entries") for more details
 278         RET=0
 279
 280         ip link add name bond1 type bond mode 802.3ad
 281
 282         ip link add name br0 type bridge vlan_filtering 1
 283         ip link set dev bond1 master br0
 284
 285         ip link set dev $swp1 down
 286         ip link set dev $swp1 master bond1 &> /dev/null
 287         check_fail $? "managed to enslave port to lag when should not"
 288
 289         # This might generate a trace, if we did not handle the failure
 290         # correctly
 291         ip -6 address add 2001:db8:1::1/64 dev $swp1
 292         ip -6 address del 2001:db8:1::1/64 dev $swp1
 293
 294         log_test "lag with bridge upper"
 295
 296         ip link del dev br0
 297         ip link del dev bond1
 298 }
 299
 300 duplicate_vlans_test()
 301 {
 302         # Test that on a given port a VLAN is only used once. Either as VLAN
 303         # in a VLAN-aware bridge or as a VLAN device
 304         RET=0
 305
 306         ip link add name br0 type bridge vlan_filtering 1
 307         ip link set dev $swp1 master br0
 308         bridge vlan add vid 10 dev $swp1
 309
 310         ip link add link $swp1 name $swp1.10 type vlan id 10 &> /dev/null
 311         check_fail $? "managed to create vlan device when should not"
 312
 313         bridge vlan del vid 10 dev $swp1
 314         ip link add link $swp1 name $swp1.10 type vlan id 10
 315         check_err $? "did not manage to create vlan device when should"
 316         bridge vlan add vid 10 dev $swp1 &> /dev/null
 317         check_fail $? "managed to add bridge vlan when should not"
 318
 319         log_test "duplicate vlans"
 320
 321         ip link del dev $swp1.10
 322         ip link del dev br0
 323 }
 324
 325 vlan_rif_refcount_test()
 326 {
 327         # Test that RIFs representing VLAN interfaces are not affected from
 328         # ports member in the VLAN. We use the offload indication on routes
 329         # configured on the RIF to understand if it was created / destroyed
 330         RET=0
 331
 332         ip link add name br0 type bridge vlan_filtering 1
 333         ip link set dev $swp1 master br0
 334
 335         ip link set dev $swp1 up
 336         ip link set dev br0 up
 337
 338         ip link add link br0 name br0.10 up type vlan id 10
 339         ip -6 address add 2001:db8:1::1/64 dev br0.10
 340
 341         ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload
 342         check_err $? "vlan rif was not created before adding port to vlan"
 343
 344         bridge vlan add vid 10 dev $swp1
 345         ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload
 346         check_err $? "vlan rif was destroyed after adding port to vlan"
 347
 348         bridge vlan del vid 10 dev $swp1
 349         ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload
 350         check_err $? "vlan rif was destroyed after removing port from vlan"
 351
 352         ip link set dev $swp1 nomaster
 353         ip -6 route get fibmatch 2001:db8:1::2 dev br0.10 | grep -q offload
 354         check_fail $? "vlan rif was not destroyed after unlinking port from bridge"
 355
 356         log_test "vlan rif refcount"
 357
 358         ip link del dev br0.10
 359         ip link set dev $swp1 down
 360         ip link del dev br0
 361 }
 362
 363 subport_rif_refcount_test()
 364 {
 365         # Test that RIFs representing upper devices of physical ports are
 366         # reference counted correctly and destroyed when should. We use the
 367         # offload indication on routes configured on the RIF to understand if
 368         # it was created / destroyed
 369         RET=0
 370
 371         ip link add name bond1 type bond mode 802.3ad
 372         ip link set dev $swp1 down
 373         ip link set dev $swp2 down
 374         ip link set dev $swp1 master bond1
 375         ip link set dev $swp2 master bond1
 376
 377         ip link set dev bond1 up
 378         ip link add link bond1 name bond1.10 up type vlan id 10
 379         ip -6 address add 2001:db8:1::1/64 dev bond1
 380         ip -6 address add 2001:db8:2::1/64 dev bond1.10
 381
 382         ip -6 route get fibmatch 2001:db8:1::2 dev bond1 | grep -q offload
 383         check_err $? "subport rif was not created on lag device"
 384         ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10 | grep -q offload
 385         check_err $? "subport rif was not created on vlan device"
 386
 387         ip link set dev $swp1 nomaster
 388         ip -6 route get fibmatch 2001:db8:1::2 dev bond1 | grep -q offload
 389         check_err $? "subport rif of lag device was destroyed when should not"
 390         ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10 | grep -q offload
 391         check_err $? "subport rif of vlan device was destroyed when should not"
 392
 393         ip link set dev $swp2 nomaster
 394         ip -6 route get fibmatch 2001:db8:1::2 dev bond1 | grep -q offload
 395         check_fail $? "subport rif of lag device was not destroyed when should"
 396         ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10 | grep -q offload
 397         check_fail $? "subport rif of vlan device was not destroyed when should"
 398
 399         log_test "subport rif refcount"
 400
 401         ip link del dev bond1.10
 402         ip link del dev bond1
 403 }
 404
 405 vlan_dev_deletion_test()
 406 {
 407         # Test that VLAN devices are correctly deleted / unlinked when enslaved
 408         # to bridge
 409         RET=0
 410
 411         ip link add name br10 type bridge
 412         ip link add name br20 type bridge
 413         ip link add name br30 type bridge
 414         ip link add link $swp1 name $swp1.10 type vlan id 10
 415         ip link add link $swp1 name $swp1.20 type vlan id 20
 416         ip link add link $swp1 name $swp1.30 type vlan id 30
 417         ip link set dev $swp1.10 master br10
 418         ip link set dev $swp1.20 master br20
 419         ip link set dev $swp1.30 master br30
 420
 421         # If we did not handle the situation correctly, then these operations
 422         # might produce a trace
 423         ip link set dev $swp1.30 nomaster
 424         ip link del dev $swp1.20
 425         # Deletion via ioctl uses different code paths from netlink
 426         vconfig rem $swp1.10 &> /dev/null
 427
 428         log_test "vlan device deletion"
 429
 430         ip link del dev $swp1.30
 431         ip link del dev br30
 432         ip link del dev br20
 433         ip link del dev br10
 434 }
 435
 436 lag_create()
 437 {
 438         ip link add name bond1 type bond mode 802.3ad
 439         ip link set dev $swp1 down
 440         ip link set dev $swp2 down
 441         ip link set dev $swp1 master bond1
 442         ip link set dev $swp2 master bond1
 443
 444         ip link add link bond1 name bond1.10 type vlan id 10
 445         ip link add link bond1 name bond1.20 type vlan id 20
 446
 447         ip link add name br0 type bridge vlan_filtering 1
 448         ip link set dev bond1 master br0
 449
 450         ip link add name br10 type bridge
 451         ip link set dev bond1.10 master br10
 452
 453         ip link add name br20 type bridge
 454         ip link set dev bond1.20 master br20
 455 }
 456
 457 lag_unlink_slaves_test()
 458 {
 459         # Test that ports are correctly unlinked from their LAG master, when
 460         # the LAG and its VLAN uppers are enslaved to bridges
 461         RET=0
 462
 463         lag_create
 464
 465         ip link set dev $swp1 nomaster
 466         check_err $? "lag slave $swp1 was not unlinked from master"
 467         ip link set dev $swp2 nomaster
 468         check_err $? "lag slave $swp2 was not unlinked from master"
 469
 470         # Try to configure corresponding VLANs as router interfaces
 471         ip -6 address add 2001:db8:1::1/64 dev $swp1
 472         check_err $? "failed to configure ip address on $swp1"
 473
 474         ip link add link $swp1 name $swp1.10 type vlan id 10
 475         ip -6 address add 2001:db8:10::1/64 dev $swp1.10
 476         check_err $? "failed to configure ip address on $swp1.10"
 477
 478         ip link add link $swp1 name $swp1.20 type vlan id 20
 479         ip -6 address add 2001:db8:20::1/64 dev $swp1.20
 480         check_err $? "failed to configure ip address on $swp1.20"
 481
 482         log_test "lag slaves unlinking"
 483
 484         ip link del dev $swp1.20
 485         ip link del dev $swp1.10
 486         ip address flush dev $swp1
 487
 488         ip link del dev br20
 489         ip link del dev br10
 490         ip link del dev br0
 491         ip link del dev bond1
 492 }
 493
 494 lag_dev_deletion_test()
 495 {
 496         # Test that LAG device is correctly deleted, when the LAG and its VLAN
 497         # uppers are enslaved to bridges
 498         RET=0
 499
 500         lag_create
 501
 502         ip link del dev bond1
 503
 504         log_test "lag device deletion"
 505
 506         ip link del dev br20
 507         ip link del dev br10
 508         ip link del dev br0
 509 }
 510
 511 vlan_interface_uppers_test()
 512 {
 513         # Test that uppers of a VLAN interface are correctly sanitized
 514         RET=0
 515
 516         ip link add name br0 type bridge vlan_filtering 1
 517         ip link set dev $swp1 master br0
 518
 519         ip link add link br0 name br0.10 type vlan id 10
 520         ip link add link br0.10 name macvlan0 \
 521                 type macvlan mode private &> /dev/null
 522         check_fail $? "managed to create a macvlan when should not"
 523
 524         ip -6 address add 2001:db8:1::1/64 dev br0.10
 525         ip link add link br0.10 name macvlan0 type macvlan mode private
 526         check_err $? "did not manage to create a macvlan when should"
 527
 528         ip link del dev macvlan0
 529
 530         ip link add name vrf-test type vrf table 10
 531         ip link set dev br0.10 master vrf-test
 532         check_err $? "did not manage to enslave vlan interface to vrf"
 533         ip link del dev vrf-test
 534
 535         ip link add name br-test type bridge
 536         ip link set dev br0.10 master br-test &> /dev/null
 537         check_fail $? "managed to enslave vlan interface to bridge when should not"
 538         ip link del dev br-test
 539
 540         log_test "vlan interface uppers"
 541
 542         ip link del dev br0
 543 }
 544
 545 bridge_extern_learn_test()
 546 {
 547         # Test that externally learned entries added from user space are
 548         # marked as offloaded
 549         RET=0
 550
 551         ip link add name br0 type bridge
 552         ip link set dev $swp1 master br0
 553
 554         bridge fdb add de:ad:be:ef:13:37 dev $swp1 master extern_learn
 555
 556         bridge fdb show brport $swp1 | grep de:ad:be:ef:13:37 | grep -q offload
 557         check_err $? "fdb entry not marked as offloaded when should"
 558
 559         log_test "externally learned fdb entry"
 560
 561         ip link del dev br0
 562 }
 563
 564 devlink_reload_test()
 565 {
 566         # Test that after executing all the above configuration tests, a
 567         # devlink reload can be performed without errors
 568         RET=0
 569
 570         devlink dev reload "$DEVLINK_DEV"
 571         check_err $? "devlink reload failed"
 572
 573         log_test "devlink reload - last test"
 574
 575         sleep 20
 576 }
 577
 578 trap cleanup EXIT
 579
 580 setup_prepare
 581 setup_wait
 582
 583 tests_run
 584
 585 exit $EXIT_STATUS