selftests: netdevsim: Test route offload failure notifications
Add cases to verify that when debugfs variable "fail_route_offload" is set, notification with "rt_offload_failed" flag is received. Extend the existing cases to verify that when sysctl "fib_notify_on_flag_change" is set to 2, the kernel emits notifications only for failed route installation. $ ./fib_notifications.sh TEST: IPv4 route addition [ OK ] TEST: IPv4 route deletion [ OK ] TEST: IPv4 route replacement [ OK ] TEST: IPv4 route offload failed [ OK ] TEST: IPv6 route addition [ OK ] TEST: IPv6 route deletion [ OK ] TEST: IPv6 route replacement [ OK ] TEST: IPv6 route offload failed [ OK ] Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amit Cohen
David S. Miller
parent
a4cb1c02c3
commit
9ee53e3753
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@ -7,9 +7,11 @@ ALL_TESTS="
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ipv4_route_addition_test
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ipv4_route_deletion_test
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ipv4_route_replacement_test
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ipv4_route_offload_failed_test
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ipv6_route_addition_test
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ipv6_route_deletion_test
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ipv6_route_replacement_test
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ipv6_route_offload_failed_test
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"
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NETDEVSIM_PATH=/sys/bus/netdevsim/
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@ -17,9 +19,26 @@ DEV_ADDR=1337
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DEV=netdevsim${DEV_ADDR}
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DEVLINK_DEV=netdevsim/${DEV}
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SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
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DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/
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NUM_NETIFS=0
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source $lib_dir/lib.sh
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check_rt_offload_failed()
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{
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local outfile=$1; shift
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local line
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# Make sure that the first notification was emitted without
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# RTM_F_OFFLOAD_FAILED flag and the second with RTM_F_OFFLOAD_FAILED
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# flag
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head -n 1 $outfile | grep -q "rt_offload_failed"
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if [[ $? -eq 0 ]]; then
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return 1
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fi
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head -n 2 $outfile | tail -n 1 | grep -q "rt_offload_failed"
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}
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check_rt_trap()
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{
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local outfile=$1; shift
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@ -39,15 +58,23 @@ route_notify_check()
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{
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local outfile=$1; shift
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local expected_num_lines=$1; shift
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local offload_failed=${1:-0}; shift
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# check the monitor results
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lines=`wc -l $outfile | cut "-d " -f1`
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test $lines -eq $expected_num_lines
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check_err $? "$expected_num_lines notifications were expected but $lines were received"
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if [[ $expected_num_lines -eq 2 ]]; then
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if [[ $expected_num_lines -eq 1 ]]; then
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return
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fi
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if [[ $offload_failed -eq 0 ]]; then
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check_rt_trap $outfile
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check_err $? "Wrong RTM_F_TRAP flags in notifications"
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else
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check_rt_offload_failed $outfile
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check_err $? "Wrong RTM_F_OFFLOAD_FAILED flags in notifications"
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fi
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}
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@ -57,6 +84,7 @@ route_addition_check()
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local notify=$1; shift
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local route=$1; shift
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local expected_num_notifications=$1; shift
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local offload_failed=${1:-0}; shift
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ip netns exec testns1 sysctl -qw net.$ip.fib_notify_on_flag_change=$notify
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@ -68,7 +96,7 @@ route_addition_check()
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sleep 1
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kill %% && wait %% &> /dev/null
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route_notify_check $outfile $expected_num_notifications
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route_notify_check $outfile $expected_num_notifications $offload_failed
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rm -f $outfile
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$IP route del $route dev dummy1
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@ -93,6 +121,13 @@ ipv4_route_addition_test()
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expected_num_notifications=2
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route_addition_check $ip $notify $route $expected_num_notifications
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# notify=2 means emit notifications only for failed route installation,
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# make sure a single notification will be emitted for the programmed
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# route.
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notify=2
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expected_num_notifications=1
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route_addition_check $ip $notify $route $expected_num_notifications
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log_test "IPv4 route addition"
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}
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@ -185,11 +220,55 @@ ipv4_route_replacement_test()
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expected_num_notifications=2
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route_replacement_check $ip $notify $route $expected_num_notifications
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# notify=2 means emit notifications only for failed route installation,
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# make sure a single notification will be emitted for the new route.
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notify=2
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expected_num_notifications=1
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route_replacement_check $ip $notify $route $expected_num_notifications
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$IP link del name dummy2
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log_test "IPv4 route replacement"
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}
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ipv4_route_offload_failed_test()
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{
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RET=0
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local ip="ipv4"
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local route=192.0.2.0/24
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local offload_failed=1
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echo "y"> $DEBUGFS_DIR/fib/fail_route_offload
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check_err $? "Failed to setup route offload to fail"
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# Make sure a single notification will be emitted for the programmed
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# route.
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local notify=0
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local expected_num_notifications=1
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route_addition_check $ip $notify $route $expected_num_notifications \
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$offload_failed
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# Make sure two notifications will be emitted for the new route.
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notify=1
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expected_num_notifications=2
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route_addition_check $ip $notify $route $expected_num_notifications \
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$offload_failed
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# notify=2 means emit notifications only for failed route installation,
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# make sure two notifications will be emitted for the new route.
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notify=2
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expected_num_notifications=2
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route_addition_check $ip $notify $route $expected_num_notifications \
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$offload_failed
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echo "n"> $DEBUGFS_DIR/fib/fail_route_offload
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check_err $? "Failed to setup route offload not to fail"
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log_test "IPv4 route offload failed"
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}
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ipv6_route_addition_test()
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{
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RET=0
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@ -208,6 +287,13 @@ ipv6_route_addition_test()
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expected_num_notifications=2
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route_addition_check $ip $notify $route $expected_num_notifications
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# notify=2 means emit notifications only for failed route installation,
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# make sure a single notification will be emitted for the programmed
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# route.
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notify=2
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expected_num_notifications=1
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route_addition_check $ip $notify $route $expected_num_notifications
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log_test "IPv6 route addition"
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}
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@ -250,11 +336,55 @@ ipv6_route_replacement_test()
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expected_num_notifications=2
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route_replacement_check $ip $notify $route $expected_num_notifications
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# notify=2 means emit notifications only for failed route installation,
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# make sure a single notification will be emitted for the new route.
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notify=2
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expected_num_notifications=1
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route_replacement_check $ip $notify $route $expected_num_notifications
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$IP link del name dummy2
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log_test "IPv6 route replacement"
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}
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ipv6_route_offload_failed_test()
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{
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RET=0
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local ip="ipv6"
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local route=2001:db8:1::/64
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local offload_failed=1
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echo "y"> $DEBUGFS_DIR/fib/fail_route_offload
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check_err $? "Failed to setup route offload to fail"
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# Make sure a single notification will be emitted for the programmed
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# route.
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local notify=0
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local expected_num_notifications=1
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route_addition_check $ip $notify $route $expected_num_notifications \
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$offload_failed
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# Make sure two notifications will be emitted for the new route.
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notify=1
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expected_num_notifications=2
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route_addition_check $ip $notify $route $expected_num_notifications \
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$offload_failed
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# notify=2 means emit notifications only for failed route installation,
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# make sure two notifications will be emitted for the new route.
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notify=2
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expected_num_notifications=2
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route_addition_check $ip $notify $route $expected_num_notifications \
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$offload_failed
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echo "n"> $DEBUGFS_DIR/fib/fail_route_offload
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check_err $? "Failed to setup route offload not to fail"
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log_test "IPv6 route offload failed"
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}
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setup_prepare()
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{
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modprobe netdevsim &> /dev/null
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