mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-01-06 13:44:31 -05:00
selftests: mlxsw: Add ingress RIF configuration test for 802.1D bridge
Before layer 2 forwarding, the device classifies an incoming packet to a
FID. After classification, the FID is known, but also all the attributes of
the FID, such as the router interface (RIF) via which a packet that needs
to be routed will ingress the router block.
For VLAN-unaware bridges (802.1D), the FID classification is done according
to {Port, VID}. When a RIF is added on top of a FID, all the existing
{Port, VID}->FID mappings should be updated by the software with the new
RIF. In addition, when a new mapping is added for FID which already has a
RIF, the correct RIF should be used for it.
Add a test to verify that packets can be routed after {Port, VID}->FID
classification, regardless of the order of the configuration.
# ./ingress_rif_conf_1d.sh
TEST: Add RIF for existing {port, VID}->FID mapping [ OK ]
TEST: Add {port, VID}->FID mapping for FID with a RIF [ OK ]
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Amit Cohen
committed by
Jakub Kicinski
Jakub Kicinski
parent
a64bb2b086
commit
2cd87cea78
264
tools/testing/selftests/drivers/net/mlxsw/ingress_rif_conf_1d.sh
Executable file
264
tools/testing/selftests/drivers/net/mlxsw/ingress_rif_conf_1d.sh
Executable file
@@ -0,0 +1,264 @@
|
||||
#!/bin/bash
|
||||
# SPDX-License-Identifier: GPL-2.0
|
||||
|
||||
# Test routing over bridge and verify that the order of configuration does not
|
||||
# impact switch behavior. Verify that RIF is added correctly for existing
|
||||
# mappings and that new mappings use the correct RIF.
|
||||
|
||||
# +-------------------+ +--------------------+
|
||||
# | H1 | | H2 |
|
||||
# | | | |
|
||||
# | $h1.10 + | | + $h2.10 |
|
||||
# | 192.0.2.1/28 | | | | 192.0.2.3/28 |
|
||||
# | | | | | |
|
||||
# | $h1 + | | + $h2 |
|
||||
# +----------------|--+ +--|-----------------+
|
||||
# | |
|
||||
# +----------------|-------------------------|-----------------+
|
||||
# | SW | | |
|
||||
# | +--------------|-------------------------|---------------+ |
|
||||
# | | $swp1 + + $swp2 | |
|
||||
# | | | | | |
|
||||
# | | $swp1.10 + + $swp2.10 | |
|
||||
# | | | |
|
||||
# | | br0 | |
|
||||
# | | 192.0.2.2/28 | |
|
||||
# | +--------------------------------------------------------+ |
|
||||
# | |
|
||||
# | $swp3.10 + |
|
||||
# | 192.0.2.17/28 | |
|
||||
# | | |
|
||||
# | $swp3 + |
|
||||
# +---------------|--------------------------------------------+
|
||||
# |
|
||||
# +---------------|--+
|
||||
# | $h3 + |
|
||||
# | | |
|
||||
# | $h3.10 + |
|
||||
# | 192.0.2.18/28 |
|
||||
# | |
|
||||
# | H3 |
|
||||
# +------------------+
|
||||
|
||||
lib_dir=$(dirname $0)/../../../net/forwarding
|
||||
|
||||
ALL_TESTS="
|
||||
port_vid_map_rif
|
||||
rif_port_vid_map
|
||||
"
|
||||
|
||||
NUM_NETIFS=6
|
||||
source $lib_dir/lib.sh
|
||||
source $lib_dir/tc_common.sh
|
||||
source $lib_dir/devlink_lib.sh
|
||||
|
||||
h1_create()
|
||||
{
|
||||
simple_if_init $h1
|
||||
vlan_create $h1 10 v$h1 192.0.2.1/28
|
||||
|
||||
ip route add 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
|
||||
}
|
||||
|
||||
h1_destroy()
|
||||
{
|
||||
ip route del 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
|
||||
|
||||
vlan_destroy $h1 10
|
||||
simple_if_fini $h1
|
||||
}
|
||||
|
||||
h2_create()
|
||||
{
|
||||
simple_if_init $h2
|
||||
vlan_create $h2 10 v$h2 192.0.2.3/28
|
||||
}
|
||||
|
||||
h2_destroy()
|
||||
{
|
||||
vlan_destroy $h2 10
|
||||
simple_if_fini $h2
|
||||
}
|
||||
|
||||
h3_create()
|
||||
{
|
||||
simple_if_init $h3
|
||||
vlan_create $h3 10 v$h3 192.0.2.18/28
|
||||
|
||||
ip route add 192.0.2.0/28 vrf v$h3 nexthop via 192.0.2.17
|
||||
}
|
||||
|
||||
h3_destroy()
|
||||
{
|
||||
ip route del 192.0.2.0/28 vrf v$h3 nexthop via 192.0.2.17
|
||||
|
||||
vlan_destroy $h3 10
|
||||
simple_if_fini $h3
|
||||
}
|
||||
|
||||
switch_create()
|
||||
{
|
||||
ip link set dev $swp1 up
|
||||
|
||||
ip link add dev br0 type bridge mcast_snooping 0
|
||||
|
||||
# By default, a link-local address is generated when netdevice becomes
|
||||
# up. Adding an address to the bridge will cause creating a RIF for it.
|
||||
# Prevent generating link-local address to be able to control when the
|
||||
# RIF is added.
|
||||
sysctl_set net.ipv6.conf.br0.addr_gen_mode 1
|
||||
ip link set dev br0 up
|
||||
|
||||
ip link set dev $swp2 up
|
||||
vlan_create $swp2 10
|
||||
ip link set dev $swp2.10 master br0
|
||||
|
||||
ip link set dev $swp3 up
|
||||
vlan_create $swp3 10 "" 192.0.2.17/28
|
||||
tc qdisc add dev $swp3 clsact
|
||||
|
||||
# Replace neighbor to avoid 1 packet which is forwarded in software due
|
||||
# to "unresolved neigh".
|
||||
ip neigh replace dev $swp3.10 192.0.2.18 lladdr $(mac_get $h3.10)
|
||||
}
|
||||
|
||||
switch_destroy()
|
||||
{
|
||||
tc qdisc del dev $swp3 clsact
|
||||
vlan_destroy $swp3 10
|
||||
ip link set dev $swp3 down
|
||||
|
||||
ip link set dev $swp2.10 nomaster
|
||||
vlan_destroy $swp2 10
|
||||
ip link set dev $swp2 down
|
||||
|
||||
ip link set dev br0 down
|
||||
sysctl_restore net.ipv6.conf.br0.addr_gen_mode
|
||||
ip link del dev br0
|
||||
|
||||
ip link set dev $swp1 down
|
||||
}
|
||||
|
||||
setup_prepare()
|
||||
{
|
||||
h1=${NETIFS[p1]}
|
||||
swp1=${NETIFS[p2]}
|
||||
|
||||
swp2=${NETIFS[p3]}
|
||||
h2=${NETIFS[p4]}
|
||||
|
||||
swp3=${NETIFS[p5]}
|
||||
h3=${NETIFS[p6]}
|
||||
|
||||
vrf_prepare
|
||||
forwarding_enable
|
||||
|
||||
h1_create
|
||||
h2_create
|
||||
h3_create
|
||||
|
||||
switch_create
|
||||
}
|
||||
|
||||
cleanup()
|
||||
{
|
||||
pre_cleanup
|
||||
|
||||
switch_destroy
|
||||
|
||||
h3_destroy
|
||||
h2_destroy
|
||||
h1_destroy
|
||||
|
||||
forwarding_restore
|
||||
vrf_cleanup
|
||||
}
|
||||
|
||||
bridge_rif_add()
|
||||
{
|
||||
rifs_occ_t0=$(devlink_resource_occ_get rifs)
|
||||
__addr_add_del br0 add 192.0.2.2/28
|
||||
rifs_occ_t1=$(devlink_resource_occ_get rifs)
|
||||
|
||||
expected_rifs=$((rifs_occ_t0 + 1))
|
||||
|
||||
[[ $expected_rifs -eq $rifs_occ_t1 ]]
|
||||
check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
|
||||
|
||||
sleep 1
|
||||
}
|
||||
|
||||
bridge_rif_del()
|
||||
{
|
||||
__addr_add_del br0 del 192.0.2.2/28
|
||||
}
|
||||
|
||||
port_vid_map_rif()
|
||||
{
|
||||
RET=0
|
||||
|
||||
# First add {port, VID}->FID for $swp1.10, then add a RIF and verify
|
||||
# that packets can be routed via the existing mapping.
|
||||
vlan_create $swp1 10
|
||||
ip link set dev $swp1.10 master br0
|
||||
bridge_rif_add
|
||||
|
||||
# The hardware matches on the first ethertype which is not VLAN,
|
||||
# so the protocol should be IP.
|
||||
tc filter add dev $swp3 egress protocol ip pref 1 handle 101 \
|
||||
flower skip_sw dst_ip 192.0.2.18 action pass
|
||||
|
||||
ping_do $h1.10 192.0.2.18
|
||||
check_err $? "Ping failed"
|
||||
|
||||
tc_check_at_least_x_packets "dev $swp3 egress" 101 10
|
||||
check_err $? "Packets were not routed in hardware"
|
||||
|
||||
log_test "Add RIF for existing {port, VID}->FID mapping"
|
||||
|
||||
tc filter del dev $swp3 egress
|
||||
|
||||
bridge_rif_del
|
||||
ip link set dev $swp1.10 nomaster
|
||||
vlan_destroy $swp1 10
|
||||
}
|
||||
|
||||
rif_port_vid_map()
|
||||
{
|
||||
RET=0
|
||||
|
||||
# First add an address to the bridge, which will create a RIF on top of
|
||||
# it, then add a new {port, VID}->FID mapping and verify that packets
|
||||
# can be routed via the new mapping.
|
||||
bridge_rif_add
|
||||
vlan_create $swp1 10
|
||||
ip link set dev $swp1.10 master br0
|
||||
|
||||
# The hardware matches on the first ethertype which is not VLAN,
|
||||
# so the protocol should be IP.
|
||||
tc filter add dev $swp3 egress protocol ip pref 1 handle 101 \
|
||||
flower skip_sw dst_ip 192.0.2.18 action pass
|
||||
|
||||
ping_do $h1.10 192.0.2.18
|
||||
check_err $? "Ping failed"
|
||||
|
||||
tc_check_at_least_x_packets "dev $swp3 egress" 101 10
|
||||
check_err $? "Packets were not routed in hardware"
|
||||
|
||||
log_test "Add {port, VID}->FID mapping for FID with a RIF"
|
||||
|
||||
tc filter del dev $swp3 egress
|
||||
|
||||
ip link set dev $swp1.10 nomaster
|
||||
vlan_destroy $swp1 10
|
||||
bridge_rif_del
|
||||
}
|
||||
|
||||
trap cleanup EXIT
|
||||
|
||||
setup_prepare
|
||||
setup_wait
|
||||
|
||||
tests_run
|
||||
|
||||
exit $EXIT_STATUS
|
||||
Reference in New Issue
Block a user