| #!/bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| |
| lib_dir=$(dirname $0)/../../../net/forwarding |
| |
| ALL_TESTS=" |
| l3_reporting_test |
| l3_fail_next_test |
| l3_counter_test |
| l3_rollback_test |
| l3_monitor_test |
| " |
| |
| NETDEVSIM_PATH=/sys/bus/netdevsim/ |
| DEV_ADDR_1=1337 |
| DEV_ADDR_2=1057 |
| DEV_ADDR_3=5417 |
| NUM_NETIFS=0 |
| source $lib_dir/lib.sh |
| |
| DUMMY_IFINDEX= |
| |
| DEV_ADDR() |
| { |
| local n=$1; shift |
| local var=DEV_ADDR_$n |
| |
| echo ${!var} |
| } |
| |
| DEV() |
| { |
| echo netdevsim$(DEV_ADDR $1) |
| } |
| |
| DEVLINK_DEV() |
| { |
| echo netdevsim/$(DEV $1) |
| } |
| |
| SYSFS_NET_DIR() |
| { |
| echo /sys/bus/netdevsim/devices/$(DEV $1)/net/ |
| } |
| |
| DEBUGFS_DIR() |
| { |
| echo /sys/kernel/debug/netdevsim/$(DEV $1)/ |
| } |
| |
| nsim_add() |
| { |
| local n=$1; shift |
| |
| echo "$(DEV_ADDR $n) 1" > ${NETDEVSIM_PATH}/new_device |
| while [ ! -d $(SYSFS_NET_DIR $n) ] ; do :; done |
| } |
| |
| nsim_reload() |
| { |
| local n=$1; shift |
| local ns=$1; shift |
| |
| devlink dev reload $(DEVLINK_DEV $n) netns $ns |
| |
| if [ $? -ne 0 ]; then |
| echo "Failed to reload $(DEV $n) into netns \"testns1\"" |
| exit 1 |
| fi |
| |
| } |
| |
| nsim_del() |
| { |
| local n=$1; shift |
| |
| echo "$(DEV_ADDR $n)" > ${NETDEVSIM_PATH}/del_device |
| } |
| |
| nsim_hwstats_toggle() |
| { |
| local action=$1; shift |
| local instance=$1; shift |
| local netdev=$1; shift |
| local type=$1; shift |
| |
| local ifindex=$($IP -j link show dev $netdev | jq '.[].ifindex') |
| |
| echo $ifindex > $(DEBUGFS_DIR $instance)/hwstats/$type/$action |
| } |
| |
| nsim_hwstats_enable() |
| { |
| nsim_hwstats_toggle enable_ifindex "$@" |
| } |
| |
| nsim_hwstats_disable() |
| { |
| nsim_hwstats_toggle disable_ifindex "$@" |
| } |
| |
| nsim_hwstats_fail_next_enable() |
| { |
| nsim_hwstats_toggle fail_next_enable "$@" |
| } |
| |
| setup_prepare() |
| { |
| modprobe netdevsim &> /dev/null |
| nsim_add 1 |
| nsim_add 2 |
| nsim_add 3 |
| |
| ip netns add testns1 |
| |
| if [ $? -ne 0 ]; then |
| echo "Failed to add netns \"testns1\"" |
| exit 1 |
| fi |
| |
| nsim_reload 1 testns1 |
| nsim_reload 2 testns1 |
| nsim_reload 3 testns1 |
| |
| IP="ip -n testns1" |
| |
| $IP link add name dummy1 type dummy |
| $IP link set dev dummy1 up |
| DUMMY_IFINDEX=$($IP -j link show dev dummy1 | jq '.[].ifindex') |
| } |
| |
| cleanup() |
| { |
| pre_cleanup |
| |
| $IP link del name dummy1 |
| ip netns del testns1 |
| nsim_del 3 |
| nsim_del 2 |
| nsim_del 1 |
| modprobe -r netdevsim &> /dev/null |
| } |
| |
| netdev_hwstats_used() |
| { |
| local netdev=$1; shift |
| local type=$1; shift |
| |
| $IP -j stats show dev "$netdev" group offload subgroup hw_stats_info | |
| jq '.[].info.l3_stats.used' |
| } |
| |
| netdev_check_used() |
| { |
| local netdev=$1; shift |
| local type=$1; shift |
| |
| [[ $(netdev_hwstats_used $netdev $type) == "true" ]] |
| } |
| |
| netdev_check_unused() |
| { |
| local netdev=$1; shift |
| local type=$1; shift |
| |
| [[ $(netdev_hwstats_used $netdev $type) == "false" ]] |
| } |
| |
| netdev_hwstats_request() |
| { |
| local netdev=$1; shift |
| local type=$1; shift |
| |
| $IP -j stats show dev "$netdev" group offload subgroup hw_stats_info | |
| jq ".[].info.${type}_stats.request" |
| } |
| |
| netdev_check_requested() |
| { |
| local netdev=$1; shift |
| local type=$1; shift |
| |
| [[ $(netdev_hwstats_request $netdev $type) == "true" ]] |
| } |
| |
| netdev_check_unrequested() |
| { |
| local netdev=$1; shift |
| local type=$1; shift |
| |
| [[ $(netdev_hwstats_request $netdev $type) == "false" ]] |
| } |
| |
| reporting_test() |
| { |
| local type=$1; shift |
| local instance=1 |
| |
| RET=0 |
| |
| [[ -n $(netdev_hwstats_used dummy1 $type) ]] |
| check_err $? "$type stats not reported" |
| |
| netdev_check_unused dummy1 $type |
| check_err $? "$type stats reported as used before either device or netdevsim request" |
| |
| nsim_hwstats_enable $instance dummy1 $type |
| netdev_check_unused dummy1 $type |
| check_err $? "$type stats reported as used before device request" |
| netdev_check_unrequested dummy1 $type |
| check_err $? "$type stats reported as requested before device request" |
| |
| $IP stats set dev dummy1 ${type}_stats on |
| netdev_check_used dummy1 $type |
| check_err $? "$type stats reported as not used after both device and netdevsim request" |
| netdev_check_requested dummy1 $type |
| check_err $? "$type stats reported as not requested after device request" |
| |
| nsim_hwstats_disable $instance dummy1 $type |
| netdev_check_unused dummy1 $type |
| check_err $? "$type stats reported as used after netdevsim request withdrawn" |
| |
| nsim_hwstats_enable $instance dummy1 $type |
| netdev_check_used dummy1 $type |
| check_err $? "$type stats reported as not used after netdevsim request reenabled" |
| |
| $IP stats set dev dummy1 ${type}_stats off |
| netdev_check_unused dummy1 $type |
| check_err $? "$type stats reported as used after device request withdrawn" |
| netdev_check_unrequested dummy1 $type |
| check_err $? "$type stats reported as requested after device request withdrawn" |
| |
| nsim_hwstats_disable $instance dummy1 $type |
| netdev_check_unused dummy1 $type |
| check_err $? "$type stats reported as used after both requests withdrawn" |
| |
| log_test "Reporting of $type stats usage" |
| } |
| |
| l3_reporting_test() |
| { |
| reporting_test l3 |
| } |
| |
| __fail_next_test() |
| { |
| local instance=$1; shift |
| local type=$1; shift |
| |
| RET=0 |
| |
| netdev_check_unused dummy1 $type |
| check_err $? "$type stats reported as used before either device or netdevsim request" |
| |
| nsim_hwstats_enable $instance dummy1 $type |
| nsim_hwstats_fail_next_enable $instance dummy1 $type |
| netdev_check_unused dummy1 $type |
| check_err $? "$type stats reported as used before device request" |
| netdev_check_unrequested dummy1 $type |
| check_err $? "$type stats reported as requested before device request" |
| |
| $IP stats set dev dummy1 ${type}_stats on 2>/dev/null |
| check_fail $? "$type stats request not bounced as it should have been" |
| netdev_check_unused dummy1 $type |
| check_err $? "$type stats reported as used after bounce" |
| netdev_check_unrequested dummy1 $type |
| check_err $? "$type stats reported as requested after bounce" |
| |
| $IP stats set dev dummy1 ${type}_stats on |
| check_err $? "$type stats request failed when it shouldn't have" |
| netdev_check_used dummy1 $type |
| check_err $? "$type stats reported as not used after both device and netdevsim request" |
| netdev_check_requested dummy1 $type |
| check_err $? "$type stats reported as not requested after device request" |
| |
| $IP stats set dev dummy1 ${type}_stats off |
| nsim_hwstats_disable $instance dummy1 $type |
| |
| log_test "Injected failure of $type stats enablement (netdevsim #$instance)" |
| } |
| |
| fail_next_test() |
| { |
| __fail_next_test 1 "$@" |
| __fail_next_test 2 "$@" |
| __fail_next_test 3 "$@" |
| } |
| |
| l3_fail_next_test() |
| { |
| fail_next_test l3 |
| } |
| |
| get_hwstat() |
| { |
| local netdev=$1; shift |
| local type=$1; shift |
| local selector=$1; shift |
| |
| $IP -j stats show dev $netdev group offload subgroup ${type}_stats | |
| jq ".[0].stats64.${selector}" |
| } |
| |
| counter_test() |
| { |
| local type=$1; shift |
| local instance=1 |
| |
| RET=0 |
| |
| nsim_hwstats_enable $instance dummy1 $type |
| $IP stats set dev dummy1 ${type}_stats on |
| netdev_check_used dummy1 $type |
| check_err $? "$type stats reported as not used after both device and netdevsim request" |
| |
| # Netdevsim counts 10pps on ingress. We should see maybe a couple |
| # packets, unless things take a reeealy long time. |
| local pkts=$(get_hwstat dummy1 l3 rx.packets) |
| ((pkts < 10)) |
| check_err $? "$type stats show >= 10 packets after first enablement" |
| |
| sleep 2.5 |
| |
| local pkts=$(get_hwstat dummy1 l3 rx.packets) |
| ((pkts >= 20)) |
| check_err $? "$type stats show < 20 packets after 2.5s passed" |
| |
| $IP stats set dev dummy1 ${type}_stats off |
| |
| sleep 2 |
| |
| $IP stats set dev dummy1 ${type}_stats on |
| local pkts=$(get_hwstat dummy1 l3 rx.packets) |
| ((pkts < 10)) |
| check_err $? "$type stats show >= 10 packets after second enablement" |
| |
| $IP stats set dev dummy1 ${type}_stats off |
| nsim_hwstats_fail_next_enable $instance dummy1 $type |
| $IP stats set dev dummy1 ${type}_stats on 2>/dev/null |
| check_fail $? "$type stats request not bounced as it should have been" |
| |
| sleep 2 |
| |
| $IP stats set dev dummy1 ${type}_stats on |
| local pkts=$(get_hwstat dummy1 l3 rx.packets) |
| ((pkts < 10)) |
| check_err $? "$type stats show >= 10 packets after post-fail enablement" |
| |
| $IP stats set dev dummy1 ${type}_stats off |
| |
| log_test "Counter values in $type stats" |
| } |
| |
| l3_counter_test() |
| { |
| counter_test l3 |
| } |
| |
| rollback_test() |
| { |
| local type=$1; shift |
| |
| RET=0 |
| |
| nsim_hwstats_enable 1 dummy1 l3 |
| nsim_hwstats_enable 2 dummy1 l3 |
| nsim_hwstats_enable 3 dummy1 l3 |
| |
| # The three netdevsim instances are registered in order of their number |
| # one after another. It is reasonable to expect that whatever |
| # notifications take place hit no. 2 in between hitting nos. 1 and 3, |
| # whatever the actual order. This allows us to test that a fail caused |
| # by no. 2 does not leave the system in a partial state, and rolls |
| # everything back. |
| |
| nsim_hwstats_fail_next_enable 2 dummy1 l3 |
| $IP stats set dev dummy1 ${type}_stats on 2>/dev/null |
| check_fail $? "$type stats request not bounced as it should have been" |
| |
| netdev_check_unused dummy1 $type |
| check_err $? "$type stats reported as used after bounce" |
| netdev_check_unrequested dummy1 $type |
| check_err $? "$type stats reported as requested after bounce" |
| |
| sleep 2 |
| |
| $IP stats set dev dummy1 ${type}_stats on |
| check_err $? "$type stats request not upheld as it should have been" |
| |
| local pkts=$(get_hwstat dummy1 l3 rx.packets) |
| ((pkts < 10)) |
| check_err $? "$type stats show $pkts packets after post-fail enablement" |
| |
| $IP stats set dev dummy1 ${type}_stats off |
| |
| nsim_hwstats_disable 3 dummy1 l3 |
| nsim_hwstats_disable 2 dummy1 l3 |
| nsim_hwstats_disable 1 dummy1 l3 |
| |
| log_test "Failure in $type stats enablement rolled back" |
| } |
| |
| l3_rollback_test() |
| { |
| rollback_test l3 |
| } |
| |
| l3_monitor_test() |
| { |
| hw_stats_monitor_test dummy1 l3 \ |
| "nsim_hwstats_enable 1 dummy1 l3" \ |
| "nsim_hwstats_disable 1 dummy1 l3" \ |
| "$IP" |
| } |
| |
| trap cleanup EXIT |
| |
| setup_prepare |
| tests_run |
| |
| exit $EXIT_STATUS |
