FM / mlxsw

/usr/src/linux-headers-5.15.0-181/tools/testing/selftests/drivers/net/mlxsw/

/usr/src/linux-headers-5.15.0-181/tools/testing/selftests/drivers/net/mlxsw

Name	Size	Mode	Actions
spectrum/	-	0755	rm
spectrum-2/	-	0755	rm
blackhole_routes.sh	5075	0755	edit dl rm
devlink_trap.sh	1928	0755	edit dl rm
devlink_trap_acl_drops.sh	2458	0755	edit dl rm
devlink_trap_control.sh	18399	0755	edit dl rm
devlink_trap_l2_drops.sh	9966	0755	edit dl rm
devlink_trap_l3_drops.sh	16812	0755	edit dl rm
devlink_trap_l3_exceptions.sh	14098	0755	edit dl rm
devlink_trap_policer.sh	9441	0755	edit dl rm
devlink_trap_tunnel_ipip.sh	6035	0755	edit dl rm
devlink_trap_tunnel_vxlan.sh	8989	0755	edit dl rm
ethtool_lanes.sh	4026	0755	edit dl rm
extack.sh	3471	0755	edit dl rm
fib.sh	5562	0755	edit dl rm
fib_offload.sh	10164	0755	edit dl rm
mirror_gre.sh	4447	0755	edit dl rm
mirror_gre_scale.sh	5782	0644	edit dl rm
mlxsw_lib.sh	362	0644	edit dl rm
one_armed_router.sh	6950	0755	edit dl rm
port_scale.sh	1391	0644	edit dl rm
qos_defprio.sh	2738	0755	edit dl rm
qos_dscp_bridge.sh	4325	0755	edit dl rm
qos_dscp_router.sh	6764	0755	edit dl rm
qos_ets_strict.sh	8810	0755	edit dl rm
qos_headroom.sh	8367	0755	edit dl rm
qos_lib.sh	1918	0644	edit dl rm
qos_mc_aware.sh	9412	0755	edit dl rm
qos_pfc.sh	11700	0755	edit dl rm
q_in_q_veto.sh	7948	0755	edit dl rm
router_scale.sh	2138	0644	edit dl rm
rtnetlink.sh	30604	0755	edit dl rm
sch_ets.sh	2332	0755	edit dl rm
sch_red_core.sh	18014	0644	edit dl rm
sch_red_ets.sh	2476	0755	edit dl rm
sch_red_prio.sh	81	0755	edit dl rm
sch_red_root.sh	1081	0755	edit dl rm
sch_tbf_ets.sh	175	0755	edit dl rm
sch_tbf_prio.sh	176	0755	edit dl rm
sch_tbf_root.sh	176	0755	edit dl rm
sharedbuffer.sh	3912	0755	edit dl rm
tc_action_hw_stats.sh	2293	0755	edit dl rm
tc_flower_scale.sh	2460	0644	edit dl rm
tc_police_occ.sh	2120	0755	edit dl rm
tc_police_scale.sh	1660	0644	edit dl rm
tc_restrictions.sh	11847	0755	edit dl rm
tc_sample.sh	17891	0755	edit dl rm
vxlan.sh	29996	0755	edit dl rm
vxlan_fdb_veto.sh	2955	0755	edit dl rm
vxlan_flooding.sh	8849	0755	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-181/tools/testing/selftests/drivers/net/mlxsw/one_armed_router.sh (6950B)

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Test a "one-armed router" [1] scenario. Packets forwarded between H1 and H2
# should be forwarded by the ASIC, but also trapped so that ICMP redirect
# packets could be potentially generated.
#
# 1. https://en.wikipedia.org/wiki/One-armed_router
#
# +---------------------------------+
# | H1 (vrf)                        |
# |    + $h1                        |
# |    | 192.0.2.1/24               |
# |    | 2001:db8:1::1/64           |
# |    |                            |
# |    |  default via 192.0.2.2     |
# |    |  default via 2001:db8:1::2 |
# +----|----------------------------+
#      |
# +----|----------------------------------------------------------------------+
# | SW |                                                                      |
# | +--|--------------------------------------------------------------------+ |
# | |  + $swp1                   BR0 (802.1d)                               | |
# | |                                                                       | |
# | |                            192.0.2.2/24                               | |
# | |                          2001:db8:1::2/64                             | |
# | |                           198.51.100.2/24                             | |
# | |                          2001:db8:2::2/64                             | |
# | |                                                                       | |
# | |  + $swp2                                                              | |
# | +--|--------------------------------------------------------------------+ |
# |    |                                                                      |
# +----|----------------------------------------------------------------------+
#      |
# +----|----------------------------+
# |    |  default via 198.51.100.2  |
# |    |  default via 2001:db8:2::2 |
# |    |                            |
# |    | 2001:db8:2::1/64           |
# |    | 198.51.100.1/24            |
# |    + $h2                        |
# | H2 (vrf)                        |
# +---------------------------------+

lib_dir=$(dirname $0)/../../../net/forwarding

ALL_TESTS="ping_ipv4 ping_ipv6 fwd_mark_ipv4 fwd_mark_ipv6"
NUM_NETIFS=4
source $lib_dir/tc_common.sh
source $lib_dir/lib.sh

h1_create()
{
	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64

ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
	ip -6 route add default vrf v$h1 nexthop via 2001:db8:1::2
}

h1_destroy()
{
	ip -6 route del default vrf v$h1 nexthop via 2001:db8:1::2
	ip -4 route del default vrf v$h1 nexthop via 192.0.2.2

simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
}

h2_create()
{
	simple_if_init $h2 198.51.100.1/24 2001:db8:2::1/64

ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
	ip -6 route add default vrf v$h2 nexthop via 2001:db8:2::2
}

h2_destroy()
{
	ip -6 route del default vrf v$h2 nexthop via 2001:db8:2::2
	ip -4 route del default vrf v$h2 nexthop via 198.51.100.2

simple_if_fini $h2 198.51.100.1/24 2001:db8:2::1/64
}

switch_create()
{
	ip link add name br0 type bridge mcast_snooping 0
	ip link set dev br0 up

ip link set dev $swp1 master br0
	ip link set dev $swp1 up
	ip link set dev $swp2 master br0
	ip link set dev $swp2 up

tc qdisc add dev $swp1 clsact
	tc qdisc add dev $swp2 clsact

__addr_add_del br0 add 192.0.2.2/24 2001:db8:1::2/64
	__addr_add_del br0 add 198.51.100.2/24 2001:db8:2::2/64
}

switch_destroy()
{
	__addr_add_del br0 del 198.51.100.2/24 2001:db8:2::2/64
	__addr_add_del br0 del 192.0.2.2/24 2001:db8:1::2/64

tc qdisc del dev $swp2 clsact
	tc qdisc del dev $swp1 clsact

ip link set dev $swp2 down
	ip link set dev $swp2 nomaster
	ip link set dev $swp1 down
	ip link set dev $swp1 nomaster

ip link set dev br0 down
	ip link del dev br0
}

ping_ipv4()
{
	ping_test $h1 198.51.100.1 ": h1->h2"
}

ping_ipv6()
{
	ping6_test $h1 2001:db8:2::1 ": h1->h2"
}

fwd_mark_ipv4()
{
	# Transmit packets from H1 to H2 and make sure they are trapped at
	# swp1 due to loopback error, but only forwarded by the ASIC through
	# swp2

tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
		skip_hw dst_ip 198.51.100.1 ip_proto udp dst_port 52768 \
		action pass

tc filter add dev $swp2 egress protocol ip pref 1 handle 101 flower \
		skip_hw dst_ip 198.51.100.1 ip_proto udp dst_port 52768 \
		action pass

tc filter add dev $swp2 egress protocol ip pref 2 handle 102 flower \
		skip_sw dst_ip 198.51.100.1 ip_proto udp dst_port 52768 \
		action pass

ip vrf exec v$h1 $MZ $h1 -c 10 -d 100msec -p 64 -A 192.0.2.1 \
		-B 198.51.100.1 -t udp dp=52768,sp=42768 -q

RET=0

tc_check_packets "dev $swp1 ingress" 101 10
	check_err $?

log_test "fwd mark: trapping IPv4 packets due to LBERROR"

RET=0

tc_check_packets "dev $swp2 egress" 101 0
	check_err $?

log_test "fwd mark: forwarding IPv4 packets in software"

RET=0

tc_check_packets "dev $swp2 egress" 102 10
	check_err $?

log_test "fwd mark: forwarding IPv4 packets in hardware"

tc filter del dev $swp2 egress protocol ip pref 2 handle 102 flower
	tc filter del dev $swp2 egress protocol ip pref 1 handle 101 flower
	tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
}

fwd_mark_ipv6()
{
	tc filter add dev $swp1 ingress protocol ipv6 pref 1 handle 101 flower \
		skip_hw dst_ip 2001:db8:2::1 ip_proto udp dst_port 52768 \
		action pass

tc filter add dev $swp2 egress protocol ipv6 pref 1 handle 101 flower \
		skip_hw dst_ip 2001:db8:2::1 ip_proto udp dst_port 52768 \
		action pass

tc filter add dev $swp2 egress protocol ipv6 pref 2 handle 102 flower \
		skip_sw dst_ip 2001:db8:2::1 ip_proto udp dst_port 52768 \
		action pass

ip vrf exec v$h1 $MZ $h1 -6 -c 10 -d 100msec -p 64 -A 2001:db8:1::1 \
		-B 2001:db8:2::1 -t udp dp=52768,sp=42768 -q

RET=0

tc_check_packets "dev $swp1 ingress" 101 10
	check_err $?

log_test "fwd mark: trapping IPv6 packets due to LBERROR"

RET=0

tc_check_packets "dev $swp2 egress" 101 0
	check_err $?

log_test "fwd mark: forwarding IPv6 packets in software"

RET=0

tc_check_packets "dev $swp2 egress" 102 10
	check_err $?

log_test "fwd mark: forwarding IPv6 packets in hardware"

tc filter del dev $swp2 egress protocol ipv6 pref 2 handle 102 flower
	tc filter del dev $swp2 egress protocol ipv6 pref 1 handle 101 flower
	tc filter del dev $swp1 ingress protocol ipv6 pref 1 handle 101 flower
}

setup_prepare()
{
	h1=${NETIFS[p1]}
	swp1=${NETIFS[p2]}

swp2=${NETIFS[p3]}
	h2=${NETIFS[p4]}

vrf_prepare
	forwarding_enable

sysctl_set net.ipv4.conf.all.accept_redirects 0
	sysctl_set net.ipv6.conf.all.accept_redirects 0

h1_create
	h2_create
	switch_create
}

cleanup()
{
	pre_cleanup

switch_destroy
	h2_destroy
	h1_destroy

sysctl_restore net.ipv6.conf.all.accept_redirects
	sysctl_restore net.ipv4.conf.all.accept_redirects

forwarding_restore
	vrf_cleanup
}

trap cleanup EXIT

setup_prepare
setup_wait

tests_run

exit $EXIT_STATUS

cmd: