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Message-Id: <20200709011814.4003186-7-kuba@kernel.org>
Date: Wed, 8 Jul 2020 18:18:10 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, saeedm@...lanox.com,
michael.chan@...adcom.com, edwin.peer@...adcom.com,
emil.s.tantilov@...el.com, alexander.h.duyck@...ux.intel.com,
jeffrey.t.kirsher@...el.com, tariqt@...lanox.com, mkubecek@...e.cz,
Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next v2 06/10] selftests: net: add a test for UDP tunnel info infra
Add validating the UDP tunnel infra works.
$ ./udp_tunnel_nic.sh
PASSED all 383 checks
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
.../drivers/net/netdevsim/udp_tunnel_nic.sh | 786 ++++++++++++++++++
1 file changed, 786 insertions(+)
create mode 100644 tools/testing/selftests/drivers/net/netdevsim/udp_tunnel_nic.sh
diff --git a/tools/testing/selftests/drivers/net/netdevsim/udp_tunnel_nic.sh b/tools/testing/selftests/drivers/net/netdevsim/udp_tunnel_nic.sh
new file mode 100644
index 000000000000..ba1d53b9f815
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/udp_tunnel_nic.sh
@@ -0,0 +1,786 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+VNI_GEN=$RANDOM
+NSIM_ID=$((RANDOM % 1024))
+NSIM_DEV_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_ID
+NSIM_DEV_DFS=/sys/kernel/debug/netdevsim/netdevsim$NSIM_ID
+NSIM_NETDEV=
+HAS_ETHTOOL=
+EXIT_STATUS=0
+num_cases=0
+num_errors=0
+
+clean_up_devs=( )
+
+function err_cnt {
+ echo "ERROR:" $@
+ EXIT_STATUS=1
+ ((num_errors++))
+ ((num_cases++))
+}
+
+function pass_cnt {
+ ((num_cases++))
+}
+
+function cleanup_tuns {
+ for dev in "${clean_up_devs[@]}"; do
+ [ -e /sys/class/net/$dev ] && ip link del dev $dev
+ done
+ clean_up_devs=( )
+}
+
+function cleanup_nsim {
+ if [ -e $NSIM_DEV_SYS ]; then
+ echo $NSIM_ID > /sys/bus/netdevsim/del_device
+ fi
+}
+
+function cleanup {
+ cleanup_tuns
+ cleanup_nsim
+}
+
+trap cleanup EXIT
+
+function new_vxlan {
+ local dev=$1
+ local dstport=$2
+ local lower=$3
+ local ipver=$4
+ local flags=$5
+
+ local group ipfl
+
+ [ "$ipver" != '6' ] && group=239.1.1.1 || group=fff1::1
+ [ "$ipver" != '6' ] || ipfl="-6"
+
+ [[ ! "$flags" =~ "external" ]] && flags="$flags id $((VNI_GEN++))"
+
+ ip $ipfl link add $dev type vxlan \
+ group $group \
+ dev $lower \
+ dstport $dstport \
+ $flags
+
+ ip link set dev $dev up
+
+ clean_up_devs=("${clean_up_devs[@]}" $dev)
+
+ check_tables
+}
+
+function new_geneve {
+ local dev=$1
+ local dstport=$2
+ local ipver=$3
+ local flags=$4
+
+ local group ipfl
+
+ [ "$ipver" != '6' ] && remote=1.1.1.2 || group=::2
+ [ "$ipver" != '6' ] || ipfl="-6"
+
+ [[ ! "$flags" =~ "external" ]] && flags="$flags vni $((VNI_GEN++))"
+
+ ip $ipfl link add $dev type geneve \
+ remote $remote \
+ dstport $dstport \
+ $flags
+
+ ip link set dev $dev up
+
+ clean_up_devs=("${clean_up_devs[@]}" $dev)
+
+ check_tables
+}
+
+function del_dev {
+ local dev=$1
+
+ ip link del dev $dev
+ check_tables
+}
+
+# Helpers for netdevsim port/type encoding
+function mke {
+ local port=$1
+ local type=$2
+
+ echo $((port << 16 | type))
+}
+
+function pre {
+ local val=$1
+
+ echo -e "port: $((val >> 16))\ttype: $((val & 0xffff))"
+}
+
+function pre_ethtool {
+ local val=$1
+ local port=$((val >> 16))
+ local type=$((val & 0xffff))
+
+ case $type in
+ 1)
+ type_name="vxlan"
+ ;;
+ 2)
+ type_name="geneve"
+ ;;
+ 4)
+ type_name="vxlan-gpe"
+ ;;
+ *)
+ type_name="bit X"
+ ;;
+ esac
+
+ echo "port $port, $type_name"
+}
+
+function check_table {
+ local path=$NSIM_DEV_DFS/ports/$port/udp_ports_table$1
+ local -n expected=$2
+ local last=$3
+
+ read -a have < $path
+
+ if [ ${#expected[@]} -ne ${#have[@]} ]; then
+ echo "check_table: BAD NUMBER OF ITEMS"
+ return 0
+ fi
+
+ for i in "${!expected[@]}"; do
+ if [ -n "$HAS_ETHTOOL" -a ${expected[i]} -ne 0 ]; then
+ pp_expected=`pre_ethtool ${expected[i]}`
+ ethtool --show-tunnels $NSIM_NETDEV | grep "$pp_expected" >/dev/null
+ if [ $? -ne 0 -a $last -ne 0 ]; then
+ err_cnt "ethtool table $1 on port $port: $pfx - $msg"
+ echo " check_table: ethtool does not contain '$pp_expected'"
+ ethtool --show-tunnels $NSIM_NETDEV
+ return 0
+
+ fi
+ fi
+
+ if [ ${expected[i]} != ${have[i]} ]; then
+ if [ $last -ne 0 ]; then
+ err_cnt "table $1 on port $port: $pfx - $msg"
+ echo " check_table: wrong entry $i"
+ echo " expected: `pre ${expected[i]}`"
+ echo " have: `pre ${have[i]}`"
+ return 0
+ fi
+ return 1
+ fi
+ done
+
+ pass_cnt
+ return 0
+}
+
+function check_tables {
+ # Need retries in case we have workqueue making the changes
+ local retries=10
+
+ while ! check_table 0 exp0 $((retries == 0)); do
+ sleep 0.02
+ ((retries--))
+ done
+ while ! check_table 1 exp1 $((retries == 0)); do
+ sleep 0.02
+ ((retries--))
+ done
+}
+
+function print_table {
+ local path=$NSIM_DEV_DFS/ports/$port/udp_ports_table$1
+ read -a have < $path
+
+ tree $NSIM_DEV_DFS/
+
+ echo "Port $port table $1:"
+
+ for i in "${!have[@]}"; do
+ echo " `pre ${have[i]}`"
+ done
+
+}
+
+function print_tables {
+ print_table 0
+ print_table 1
+}
+
+function get_netdev_name {
+ local -n old=$1
+
+ new=$(ls /sys/class/net)
+
+ for netdev in $new; do
+ for check in $old; do
+ [ $netdev == $check ] && break
+ done
+
+ if [ $netdev != $check ]; then
+ echo $netdev
+ break
+ fi
+ done
+}
+
+###
+### Code start
+###
+
+# Probe ethtool support
+ethtool -h | grep show-tunnels 2>&1 >/dev/null && HAS_ETHTOOL=y
+
+modprobe netdevsim
+
+# Basic test
+pfx="basic"
+
+for port in 0 1; do
+ old_netdevs=$(ls /sys/class/net)
+ if [ $port -eq 0 ]; then
+ echo $NSIM_ID > /sys/bus/netdevsim/new_device
+ else
+ echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+ echo 1 > $NSIM_DEV_DFS/udp_ports_sleep
+ echo 1 > $NSIM_DEV_SYS/new_port
+ fi
+ NSIM_NETDEV=`get_netdev_name old_netdevs`
+
+ msg="new NIC device created"
+ exp0=( 0 0 0 0 )
+ exp1=( 0 0 0 0 )
+ check_tables
+
+ msg="VxLAN v4 devices"
+ exp0=( `mke 4789 1` 0 0 0 )
+ new_vxlan vxlan0 4789 $NSIM_NETDEV
+ new_vxlan vxlan1 4789 $NSIM_NETDEV
+
+ msg="VxLAN v4 devices go down"
+ exp0=( 0 0 0 0 )
+ ifconfig vxlan1 down
+ ifconfig vxlan0 down
+ check_tables
+
+ msg="VxLAN v6 devices"
+ exp0=( `mke 4789 1` 0 0 0 )
+ new_vxlan vxlanA 4789 $NSIM_NETDEV 6
+
+ for ifc in vxlan0 vxlan1; do
+ ifconfig $ifc up
+ done
+
+ new_vxlan vxlanB 4789 $NSIM_NETDEV 6
+
+ msg="another VxLAN v6 devices"
+ exp0=( `mke 4789 1` `mke 4790 1` 0 0 )
+ new_vxlan vxlanC 4790 $NSIM_NETDEV 6
+
+ msg="Geneve device"
+ exp1=( `mke 6081 2` 0 0 0 )
+ new_geneve gnv0 6081
+
+ msg="NIC device goes down"
+ ifconfig $NSIM_NETDEV down
+ if [ $port -eq 1 ]; then
+ exp0=( 0 0 0 0 )
+ exp1=( 0 0 0 0 )
+ fi
+ check_tables
+ msg="NIC device goes up again"
+ ifconfig $NSIM_NETDEV up
+ exp0=( `mke 4789 1` `mke 4790 1` 0 0 )
+ exp1=( `mke 6081 2` 0 0 0 )
+ check_tables
+
+ cleanup_tuns
+
+ msg="tunnels destroyed"
+ exp0=( 0 0 0 0 )
+ exp1=( 0 0 0 0 )
+ check_tables
+
+ modprobe -r geneve
+ modprobe -r vxlan
+ modprobe -r udp_tunnel
+
+ check_tables
+done
+
+modprobe -r netdevsim
+
+# Module tests
+pfx="module tests"
+
+if modinfo netdevsim | grep udp_tunnel >/dev/null; then
+ err_cnt "netdevsim depends on udp_tunnel"
+else
+ pass_cnt
+fi
+
+modprobe netdevsim
+
+old_netdevs=$(ls /sys/class/net)
+port=0
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+echo 1000 > $NSIM_DEV_DFS/udp_ports_sleep
+echo 0 > $NSIM_DEV_SYS/new_port
+NSIM_NETDEV=`get_netdev_name old_netdevs`
+
+msg="create VxLANs"
+exp0=( 0 0 0 0 ) # sleep is longer than out wait
+new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+modprobe -r vxlan
+modprobe -r udp_tunnel
+
+msg="remove tunnels"
+exp0=( 0 0 0 0 )
+check_tables
+
+msg="create VxLANs"
+exp0=( 0 0 0 0 ) # sleep is longer than out wait
+new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+exp0=( 0 0 0 0 )
+
+modprobe -r netdevsim
+modprobe netdevsim
+
+# Overflow the table
+
+function overflow_table0 {
+ local pfx=$1
+
+ msg="create VxLANs 1/5"
+ exp0=( `mke 10000 1` 0 0 0 )
+ new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+ msg="create VxLANs 2/5"
+ exp0=( `mke 10000 1` `mke 10001 1` 0 0 )
+ new_vxlan vxlan1 10001 $NSIM_NETDEV
+
+ msg="create VxLANs 3/5"
+ exp0=( `mke 10000 1` `mke 10001 1` `mke 10002 1` 0 )
+ new_vxlan vxlan2 10002 $NSIM_NETDEV
+
+ msg="create VxLANs 4/5"
+ exp0=( `mke 10000 1` `mke 10001 1` `mke 10002 1` `mke 10003 1` )
+ new_vxlan vxlan3 10003 $NSIM_NETDEV
+
+ msg="create VxLANs 5/5"
+ new_vxlan vxlan4 10004 $NSIM_NETDEV
+}
+
+function overflow_table1 {
+ local pfx=$1
+
+ msg="create GENEVE 1/5"
+ exp1=( `mke 20000 2` 0 0 0 )
+ new_geneve gnv0 20000
+
+ msg="create GENEVE 2/5"
+ exp1=( `mke 20000 2` `mke 20001 2` 0 0 )
+ new_geneve gnv1 20001
+
+ msg="create GENEVE 3/5"
+ exp1=( `mke 20000 2` `mke 20001 2` `mke 20002 2` 0 )
+ new_geneve gnv2 20002
+
+ msg="create GENEVE 4/5"
+ exp1=( `mke 20000 2` `mke 20001 2` `mke 20002 2` `mke 20003 2` )
+ new_geneve gnv3 20003
+
+ msg="create GENEVE 5/5"
+ new_geneve gnv4 20004
+}
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+
+for port in 0 1; do
+ if [ $port -ne 0 ]; then
+ echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+ echo 1 > $NSIM_DEV_DFS/udp_ports_sleep
+ fi
+
+ echo $port > $NSIM_DEV_SYS/new_port
+ ifconfig $NSIM_NETDEV up
+
+ overflow_table0 "overflow NIC table"
+ overflow_table1 "overflow NIC table"
+
+ msg="replace VxLAN in overflow table"
+ exp0=( `mke 10000 1` `mke 10004 1` `mke 10002 1` `mke 10003 1` )
+ del_dev vxlan1
+
+ msg="vacate VxLAN in overflow table"
+ exp0=( `mke 10000 1` `mke 10004 1` 0 `mke 10003 1` )
+ del_dev vxlan2
+
+ msg="replace GENEVE in overflow table"
+ exp1=( `mke 20000 2` `mke 20004 2` `mke 20002 2` `mke 20003 2` )
+ del_dev gnv1
+
+ msg="vacate GENEVE in overflow table"
+ exp1=( `mke 20000 2` `mke 20004 2` 0 `mke 20003 2` )
+ del_dev gnv2
+
+ msg="table sharing - share"
+ exp1=( `mke 20000 2` `mke 20004 2` `mke 30001 4` `mke 20003 2` )
+ new_vxlan vxlanG0 30001 $NSIM_NETDEV 4 "gpe external"
+
+ msg="table sharing - overflow"
+ new_vxlan vxlanG1 30002 $NSIM_NETDEV 4 "gpe external"
+ msg="table sharing - overflow v6"
+ new_vxlan vxlanG2 30002 $NSIM_NETDEV 6 "gpe external"
+
+ exp1=( `mke 20000 2` `mke 30002 4` `mke 30001 4` `mke 20003 2` )
+ del_dev gnv4
+
+ msg="destroy NIC"
+ echo $port > $NSIM_DEV_SYS/del_port
+
+ cleanup_tuns
+ exp0=( 0 0 0 0 )
+ exp1=( 0 0 0 0 )
+done
+
+cleanup_nsim
+
+# Sync all
+pfx="sync all"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+echo 1 > $NSIM_DEV_DFS/udp_ports_sync_all
+
+for port in 0 1; do
+ if [ $port -ne 0 ]; then
+ echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+ echo 1 > $NSIM_DEV_DFS/udp_ports_sleep
+ fi
+
+ echo $port > $NSIM_DEV_SYS/new_port
+ ifconfig $NSIM_NETDEV up
+
+ overflow_table0 "overflow NIC table"
+ overflow_table1 "overflow NIC table"
+
+ msg="replace VxLAN in overflow table"
+ exp0=( `mke 10000 1` `mke 10004 1` `mke 10002 1` `mke 10003 1` )
+ del_dev vxlan1
+
+ msg="vacate VxLAN in overflow table"
+ exp0=( `mke 10000 1` `mke 10004 1` 0 `mke 10003 1` )
+ del_dev vxlan2
+
+ msg="replace GENEVE in overflow table"
+ exp1=( `mke 20000 2` `mke 20004 2` `mke 20002 2` `mke 20003 2` )
+ del_dev gnv1
+
+ msg="vacate GENEVE in overflow table"
+ exp1=( `mke 20000 2` `mke 20004 2` 0 `mke 20003 2` )
+ del_dev gnv2
+
+ msg="table sharing - share"
+ exp1=( `mke 20000 2` `mke 20004 2` `mke 30001 4` `mke 20003 2` )
+ new_vxlan vxlanG0 30001 $NSIM_NETDEV 4 "gpe external"
+
+ msg="table sharing - overflow"
+ new_vxlan vxlanG1 30002 $NSIM_NETDEV 4 "gpe external"
+ msg="table sharing - overflow v6"
+ new_vxlan vxlanG2 30002 $NSIM_NETDEV 6 "gpe external"
+
+ exp1=( `mke 20000 2` `mke 30002 4` `mke 30001 4` `mke 20003 2` )
+ del_dev gnv4
+
+ msg="destroy NIC"
+ echo $port > $NSIM_DEV_SYS/del_port
+
+ cleanup_tuns
+ exp0=( 0 0 0 0 )
+ exp1=( 0 0 0 0 )
+done
+
+cleanup_nsim
+
+# Destroy full NIC
+pfx="destroy full"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+
+for port in 0 1; do
+ if [ $port -ne 0 ]; then
+ echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+ echo 1 > $NSIM_DEV_DFS/udp_ports_sleep
+ fi
+
+ echo $port > $NSIM_DEV_SYS/new_port
+ ifconfig $NSIM_NETDEV up
+
+ overflow_table0 "destroy NIC"
+ overflow_table1 "destroy NIC"
+
+ msg="destroy NIC"
+ echo $port > $NSIM_DEV_SYS/del_port
+
+ cleanup_tuns
+ exp0=( 0 0 0 0 )
+ exp1=( 0 0 0 0 )
+done
+
+cleanup_nsim
+
+# IPv4 only
+pfx="IPv4 only"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+echo 1 > $NSIM_DEV_DFS/udp_ports_ipv4_only
+
+for port in 0 1; do
+ if [ $port -ne 0 ]; then
+ echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+ echo 1 > $NSIM_DEV_DFS/udp_ports_sleep
+ fi
+
+ echo $port > $NSIM_DEV_SYS/new_port
+ ifconfig $NSIM_NETDEV up
+
+ msg="create VxLANs v6"
+ new_vxlan vxlanA0 10000 $NSIM_NETDEV 6
+
+ msg="create VxLANs v6"
+ new_vxlan vxlanA1 10000 $NSIM_NETDEV 6
+
+ ip link set dev vxlanA0 down
+ ip link set dev vxlanA0 up
+ check_tables
+
+ msg="create VxLANs v4"
+ exp0=( `mke 10000 1` 0 0 0 )
+ new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+ msg="down VxLANs v4"
+ exp0=( 0 0 0 0 )
+ ip link set dev vxlan0 down
+ check_tables
+
+ msg="up VxLANs v4"
+ exp0=( `mke 10000 1` 0 0 0 )
+ ip link set dev vxlan0 up
+ check_tables
+
+ msg="destroy VxLANs v4"
+ exp0=( 0 0 0 0 )
+ del_dev vxlan0
+
+ msg="recreate VxLANs v4"
+ exp0=( `mke 10000 1` 0 0 0 )
+ new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+ del_dev vxlanA0
+ del_dev vxlanA1
+
+ msg="destroy NIC"
+ echo $port > $NSIM_DEV_SYS/del_port
+
+ cleanup_tuns
+ exp0=( 0 0 0 0 )
+ exp1=( 0 0 0 0 )
+done
+
+cleanup_nsim
+
+# Failures
+pfx="error injection"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+
+for port in 0 1; do
+ if [ $port -ne 0 ]; then
+ echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+ echo 1 > $NSIM_DEV_DFS/udp_ports_sleep
+ fi
+
+ echo $port > $NSIM_DEV_SYS/new_port
+ ifconfig $NSIM_NETDEV up
+
+ echo 110 > $NSIM_DEV_DFS/ports/$port/udp_ports_inject_error
+
+ msg="1 - create VxLANs v6"
+ exp0=( 0 0 0 0 )
+ new_vxlan vxlanA0 10000 $NSIM_NETDEV 6
+
+ msg="1 - create VxLANs v4"
+ exp0=( `mke 10000 1` 0 0 0 )
+ new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+ msg="1 - remove VxLANs v4"
+ del_dev vxlan0
+
+ msg="1 - remove VxLANs v6"
+ exp0=( 0 0 0 0 )
+ del_dev vxlanA0
+
+ msg="2 - create GENEVE"
+ exp1=( `mke 20000 2` 0 0 0 )
+ new_geneve gnv0 20000
+
+ msg="2 - destroy GENEVE"
+ echo 2 > $NSIM_DEV_DFS/ports/$port/udp_ports_inject_error
+ exp1=( `mke 20000 2` 0 0 0 )
+ del_dev gnv0
+
+ msg="2 - create second GENEVE"
+ exp1=( 0 `mke 20001 2` 0 0 )
+ new_geneve gnv0 20001
+
+ msg="destroy NIC"
+ echo $port > $NSIM_DEV_SYS/del_port
+
+ cleanup_tuns
+ exp0=( 0 0 0 0 )
+ exp1=( 0 0 0 0 )
+done
+
+cleanup_nsim
+
+# netdev flags
+pfx="netdev flags"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+
+for port in 0 1; do
+ if [ $port -ne 0 ]; then
+ echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+ echo 1 > $NSIM_DEV_DFS/udp_ports_sleep
+ fi
+
+ echo $port > $NSIM_DEV_SYS/new_port
+ ifconfig $NSIM_NETDEV up
+
+ msg="create VxLANs v6"
+ exp0=( `mke 10000 1` 0 0 0 )
+ new_vxlan vxlanA0 10000 $NSIM_NETDEV 6
+
+ msg="create VxLANs v4"
+ new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+ msg="turn off"
+ exp0=( 0 0 0 0 )
+ ethtool -K $NSIM_NETDEV rx-udp_tunnel-port-offload off
+ check_tables
+
+ msg="turn on"
+ exp0=( `mke 10000 1` 0 0 0 )
+ ethtool -K $NSIM_NETDEV rx-udp_tunnel-port-offload on
+ check_tables
+
+ msg="remove both"
+ del_dev vxlanA0
+ exp0=( 0 0 0 0 )
+ del_dev vxlan0
+ check_tables
+
+ ethtool -K $NSIM_NETDEV rx-udp_tunnel-port-offload off
+
+ msg="create VxLANs v4 - off"
+ exp0=( 0 0 0 0 )
+ new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+ msg="created off - turn on"
+ exp0=( `mke 10000 1` 0 0 0 )
+ ethtool -K $NSIM_NETDEV rx-udp_tunnel-port-offload on
+ check_tables
+
+ msg="destroy NIC"
+ echo $port > $NSIM_DEV_SYS/del_port
+
+ cleanup_tuns
+ exp0=( 0 0 0 0 )
+ exp1=( 0 0 0 0 )
+done
+
+cleanup_nsim
+
+# device initiated reset
+pfx="reset notification"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+
+for port in 0 1; do
+ if [ $port -ne 0 ]; then
+ echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+ echo 1 > $NSIM_DEV_DFS/udp_ports_sleep
+ fi
+
+ echo $port > $NSIM_DEV_SYS/new_port
+ ifconfig $NSIM_NETDEV up
+
+ msg="create VxLANs v6"
+ exp0=( `mke 10000 1` 0 0 0 )
+ new_vxlan vxlanA0 10000 $NSIM_NETDEV 6
+
+ msg="create VxLANs v4"
+ new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+ echo 1 > $NSIM_DEV_DFS/ports/$port/udp_ports_reset
+ check_tables
+
+ msg="NIC device goes down"
+ ifconfig $NSIM_NETDEV down
+ if [ $port -eq 1 ]; then
+ exp0=( 0 0 0 0 )
+ exp1=( 0 0 0 0 )
+ fi
+ check_tables
+
+ echo 1 > $NSIM_DEV_DFS/ports/$port/udp_ports_reset
+ check_tables
+
+ msg="NIC device goes up again"
+ ifconfig $NSIM_NETDEV up
+ exp0=( `mke 10000 1` 0 0 0 )
+ check_tables
+
+ msg="remove both"
+ del_dev vxlanA0
+ exp0=( 0 0 0 0 )
+ del_dev vxlan0
+ check_tables
+
+ echo 1 > $NSIM_DEV_DFS/ports/$port/udp_ports_reset
+ check_tables
+
+ msg="destroy NIC"
+ echo $port > $NSIM_DEV_SYS/del_port
+
+ cleanup_tuns
+ exp0=( 0 0 0 0 )
+ exp1=( 0 0 0 0 )
+done
+
+modprobe -r netdevsim
+
+if [ $num_errors -eq 0 ]; then
+ echo "PASSED all $num_cases checks"
+else
+ echo "FAILED $num_errors/$num_cases checks"
+fi
+
+exit $EXIT_STATUS
--
2.26.2
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