350 lines
9.9 KiB
Bash
350 lines
9.9 KiB
Bash
|
#!/bin/bash
|
||
|
|
# SPDX-License-Identifier: GPL-2.0
|
||
|
|
#
|
||
|
|
# Test unicast FIB offload indication.
|
||
|
|
|
||
|
|
lib_dir=$(dirname $0)/../../../net/forwarding
|
||
|
|
|
||
|
|
ALL_TESTS="
|
||
|
|
ipv6_route_add
|
||
|
|
ipv6_route_replace
|
||
|
|
ipv6_route_nexthop_group_share
|
||
|
|
ipv6_route_rate
|
||
|
|
"
|
||
|
|
NUM_NETIFS=4
|
||
|
|
source $lib_dir/lib.sh
|
||
|
|
source $lib_dir/devlink_lib.sh
|
||
|
|
|
||
|
|
tor1_create()
|
||
|
|
{
|
||
|
|
simple_if_init $tor1_p1 2001:db8:1::2/128 2001:db8:1::3/128
|
||
|
|
}
|
||
|
|
|
||
|
|
tor1_destroy()
|
||
|
|
{
|
||
|
|
simple_if_fini $tor1_p1 2001:db8:1::2/128 2001:db8:1::3/128
|
||
|
|
}
|
||
|
|
|
||
|
|
tor2_create()
|
||
|
|
{
|
||
|
|
simple_if_init $tor2_p1 2001:db8:2::2/128 2001:db8:2::3/128
|
||
|
|
}
|
||
|
|
|
||
|
|
tor2_destroy()
|
||
|
|
{
|
||
|
|
simple_if_fini $tor2_p1 2001:db8:2::2/128 2001:db8:2::3/128
|
||
|
|
}
|
||
|
|
|
||
|
|
spine_create()
|
||
|
|
{
|
||
|
|
ip link set dev $spine_p1 up
|
||
|
|
ip link set dev $spine_p2 up
|
||
|
|
|
||
|
|
__addr_add_del $spine_p1 add 2001:db8:1::1/64
|
||
|
|
__addr_add_del $spine_p2 add 2001:db8:2::1/64
|
||
|
|
}
|
||
|
|
|
||
|
|
spine_destroy()
|
||
|
|
{
|
||
|
|
__addr_add_del $spine_p2 del 2001:db8:2::1/64
|
||
|
|
__addr_add_del $spine_p1 del 2001:db8:1::1/64
|
||
|
|
|
||
|
|
ip link set dev $spine_p2 down
|
||
|
|
ip link set dev $spine_p1 down
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_offload_check()
|
||
|
|
{
|
||
|
|
local pfx="$1"; shift
|
||
|
|
local expected_num=$1; shift
|
||
|
|
local num
|
||
|
|
|
||
|
|
# Try to avoid races with route offload
|
||
|
|
sleep .1
|
||
|
|
|
||
|
|
num=$(ip -6 route show match ${pfx} | grep "offload" | wc -l)
|
||
|
|
|
||
|
|
if [ $num -eq $expected_num ]; then
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_route_add_prefix()
|
||
|
|
{
|
||
|
|
RET=0
|
||
|
|
|
||
|
|
# Add a prefix route and check that it is offloaded.
|
||
|
|
ip -6 route add 2001:db8:3::/64 dev $spine_p1 metric 100
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 dev $spine_p1 metric 100" 1
|
||
|
|
check_err $? "prefix route not offloaded"
|
||
|
|
|
||
|
|
# Append an identical prefix route with an higher metric and check that
|
||
|
|
# offload indication did not change.
|
||
|
|
ip -6 route append 2001:db8:3::/64 dev $spine_p1 metric 200
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 dev $spine_p1 metric 100" 1
|
||
|
|
check_err $? "lowest metric not offloaded after append"
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 dev $spine_p1 metric 200" 0
|
||
|
|
check_err $? "highest metric offloaded when should not"
|
||
|
|
|
||
|
|
# Prepend an identical prefix route with lower metric and check that
|
||
|
|
# it is offloaded and the others are not.
|
||
|
|
ip -6 route append 2001:db8:3::/64 dev $spine_p1 metric 10
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 dev $spine_p1 metric 10" 1
|
||
|
|
check_err $? "lowest metric not offloaded after prepend"
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 dev $spine_p1 metric 100" 0
|
||
|
|
check_err $? "mid metric offloaded when should not"
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 dev $spine_p1 metric 200" 0
|
||
|
|
check_err $? "highest metric offloaded when should not"
|
||
|
|
|
||
|
|
# Delete the routes and add the same route with a different nexthop
|
||
|
|
# device. Check that it is offloaded.
|
||
|
|
ip -6 route flush 2001:db8:3::/64 dev $spine_p1
|
||
|
|
ip -6 route add 2001:db8:3::/64 dev $spine_p2
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 dev $spine_p2" 1
|
||
|
|
|
||
|
|
log_test "IPv6 prefix route add"
|
||
|
|
|
||
|
|
ip -6 route flush 2001:db8:3::/64
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_route_add_mpath()
|
||
|
|
{
|
||
|
|
RET=0
|
||
|
|
|
||
|
|
# Add a multipath route and check that it is offloaded.
|
||
|
|
ip -6 route add 2001:db8:3::/64 metric 100 \
|
||
|
|
nexthop via 2001:db8:1::2 dev $spine_p1 \
|
||
|
|
nexthop via 2001:db8:2::2 dev $spine_p2
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 100" 2
|
||
|
|
check_err $? "multipath route not offloaded when should"
|
||
|
|
|
||
|
|
# Append another nexthop and check that it is offloaded as well.
|
||
|
|
ip -6 route append 2001:db8:3::/64 metric 100 \
|
||
|
|
nexthop via 2001:db8:1::3 dev $spine_p1
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 100" 3
|
||
|
|
check_err $? "appended nexthop not offloaded when should"
|
||
|
|
|
||
|
|
# Mimic route replace by removing the route and adding it back with
|
||
|
|
# only two nexthops.
|
||
|
|
ip -6 route del 2001:db8:3::/64
|
||
|
|
ip -6 route add 2001:db8:3::/64 metric 100 \
|
||
|
|
nexthop via 2001:db8:1::2 dev $spine_p1 \
|
||
|
|
nexthop via 2001:db8:2::2 dev $spine_p2
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 100" 2
|
||
|
|
check_err $? "multipath route not offloaded after delete & add"
|
||
|
|
|
||
|
|
# Append a nexthop with an higher metric and check that the offload
|
||
|
|
# indication did not change.
|
||
|
|
ip -6 route append 2001:db8:3::/64 metric 200 \
|
||
|
|
nexthop via 2001:db8:1::3 dev $spine_p1
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 100" 2
|
||
|
|
check_err $? "lowest metric not offloaded after append"
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 200" 0
|
||
|
|
check_err $? "highest metric offloaded when should not"
|
||
|
|
|
||
|
|
# Prepend a nexthop with a lower metric and check that it is offloaded
|
||
|
|
# and the others are not.
|
||
|
|
ip -6 route append 2001:db8:3::/64 metric 10 \
|
||
|
|
nexthop via 2001:db8:1::3 dev $spine_p1
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 10" 1
|
||
|
|
check_err $? "lowest metric not offloaded after prepend"
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 100" 0
|
||
|
|
check_err $? "mid metric offloaded when should not"
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 200" 0
|
||
|
|
check_err $? "highest metric offloaded when should not"
|
||
|
|
|
||
|
|
log_test "IPv6 multipath route add"
|
||
|
|
|
||
|
|
ip -6 route flush 2001:db8:3::/64
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_route_add()
|
||
|
|
{
|
||
|
|
ipv6_route_add_prefix
|
||
|
|
ipv6_route_add_mpath
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_route_replace()
|
||
|
|
{
|
||
|
|
RET=0
|
||
|
|
|
||
|
|
# Replace prefix route with prefix route.
|
||
|
|
ip -6 route add 2001:db8:3::/64 metric 100 dev $spine_p1
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 100" 1
|
||
|
|
check_err $? "prefix route not offloaded when should"
|
||
|
|
ip -6 route replace 2001:db8:3::/64 metric 100 dev $spine_p2
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 100" 1
|
||
|
|
check_err $? "prefix route not offloaded after replace"
|
||
|
|
|
||
|
|
# Replace prefix route with multipath route.
|
||
|
|
ip -6 route replace 2001:db8:3::/64 metric 100 \
|
||
|
|
nexthop via 2001:db8:1::2 dev $spine_p1 \
|
||
|
|
nexthop via 2001:db8:2::2 dev $spine_p2
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 100" 2
|
||
|
|
check_err $? "multipath route not offloaded after replace"
|
||
|
|
|
||
|
|
# Replace multipath route with prefix route. A prefix route cannot
|
||
|
|
# replace a multipath route, so it is appended.
|
||
|
|
ip -6 route replace 2001:db8:3::/64 metric 100 dev $spine_p1
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 100 dev $spine_p1" 0
|
||
|
|
check_err $? "prefix route offloaded after 'replacing' multipath route"
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 100" 2
|
||
|
|
check_err $? "multipath route not offloaded after being 'replaced' by prefix route"
|
||
|
|
|
||
|
|
# Replace multipath route with multipath route.
|
||
|
|
ip -6 route replace 2001:db8:3::/64 metric 100 \
|
||
|
|
nexthop via 2001:db8:1::3 dev $spine_p1 \
|
||
|
|
nexthop via 2001:db8:2::3 dev $spine_p2
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 100" 2
|
||
|
|
check_err $? "multipath route not offloaded after replacing multipath route"
|
||
|
|
|
||
|
|
# Replace a non-existing multipath route with a multipath route and
|
||
|
|
# check that it is appended and not offloaded.
|
||
|
|
ip -6 route replace 2001:db8:3::/64 metric 200 \
|
||
|
|
nexthop via 2001:db8:1::3 dev $spine_p1 \
|
||
|
|
nexthop via 2001:db8:2::3 dev $spine_p2
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 100" 2
|
||
|
|
check_err $? "multipath route not offloaded after non-existing route was 'replaced'"
|
||
|
|
ipv6_offload_check "2001:db8:3::/64 metric 200" 0
|
||
|
|
check_err $? "multipath route offloaded after 'replacing' non-existing route"
|
||
|
|
|
||
|
|
log_test "IPv6 route replace"
|
||
|
|
|
||
|
|
ip -6 route flush 2001:db8:3::/64
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_route_nexthop_group_share()
|
||
|
|
{
|
||
|
|
RET=0
|
||
|
|
|
||
|
|
# The driver consolidates identical nexthop groups in order to reduce
|
||
|
|
# the resource usage in its adjacency table. Check that the deletion
|
||
|
|
# of one multipath route using the group does not affect the other.
|
||
|
|
ip -6 route add 2001:db8:3::/64 \
|
||
|
|
nexthop via 2001:db8:1::2 dev $spine_p1 \
|
||
|
|
nexthop via 2001:db8:2::2 dev $spine_p2
|
||
|
|
ip -6 route add 2001:db8:4::/64 \
|
||
|
|
nexthop via 2001:db8:1::2 dev $spine_p1 \
|
||
|
|
nexthop via 2001:db8:2::2 dev $spine_p2
|
||
|
|
ipv6_offload_check "2001:db8:3::/64" 2
|
||
|
|
check_err $? "multipath route not offloaded when should"
|
||
|
|
ipv6_offload_check "2001:db8:4::/64" 2
|
||
|
|
check_err $? "multipath route not offloaded when should"
|
||
|
|
ip -6 route del 2001:db8:3::/64
|
||
|
|
ipv6_offload_check "2001:db8:4::/64" 2
|
||
|
|
check_err $? "multipath route not offloaded after deletion of route sharing the nexthop group"
|
||
|
|
|
||
|
|
# Check that after unsharing a nexthop group the routes are still
|
||
|
|
# marked as offloaded.
|
||
|
|
ip -6 route add 2001:db8:3::/64 \
|
||
|
|
nexthop via 2001:db8:1::2 dev $spine_p1 \
|
||
|
|
nexthop via 2001:db8:2::2 dev $spine_p2
|
||
|
|
ip -6 route del 2001:db8:4::/64 \
|
||
|
|
nexthop via 2001:db8:1::2 dev $spine_p1
|
||
|
|
ipv6_offload_check "2001:db8:4::/64" 1
|
||
|
|
check_err $? "singlepath route not offloaded after unsharing the nexthop group"
|
||
|
|
ipv6_offload_check "2001:db8:3::/64" 2
|
||
|
|
check_err $? "multipath route not offloaded after unsharing the nexthop group"
|
||
|
|
|
||
|
|
log_test "IPv6 nexthop group sharing"
|
||
|
|
|
||
|
|
ip -6 route flush 2001:db8:3::/64
|
||
|
|
ip -6 route flush 2001:db8:4::/64
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_route_rate()
|
||
|
|
{
|
||
|
|
local batch_dir=$(mktemp -d)
|
||
|
|
local num_rts=$((40 * 1024))
|
||
|
|
local num_nhs=16
|
||
|
|
local total
|
||
|
|
local start
|
||
|
|
local diff
|
||
|
|
local end
|
||
|
|
local nhs
|
||
|
|
local i
|
||
|
|
|
||
|
|
RET=0
|
||
|
|
|
||
|
|
# Prepare 40K /64 multipath routes with 16 nexthops each and check how
|
||
|
|
# long it takes to add them. A limit of 60 seconds is set. It is much
|
||
|
|
# higher than insertion should take and meant to flag a serious
|
||
|
|
# regression.
|
||
|
|
total=$((nums_nhs * num_rts))
|
||
|
|
|
||
|
|
for i in $(seq 1 $num_nhs); do
|
||
|
|
ip -6 address add 2001:db8:1::10:$i/128 dev $tor1_p1
|
||
|
|
nexthops+=" nexthop via 2001:db8:1::10:$i dev $spine_p1"
|
||
|
|
done
|
||
|
|
|
||
|
|
for i in $(seq 1 $num_rts); do
|
||
|
|
echo "route add 2001:db8:8:$(printf "%x" $i)::/64$nexthops" \
|
||
|
|
>> $batch_dir/add.batch
|
||
|
|
echo "route del 2001:db8:8:$(printf "%x" $i)::/64$nexthops" \
|
||
|
|
>> $batch_dir/del.batch
|
||
|
|
done
|
||
|
|
|
||
|
|
start=$(date +%s.%N)
|
||
|
|
|
||
|
|
ip -batch $batch_dir/add.batch
|
||
|
|
count=$(ip -6 route show | grep offload | wc -l)
|
||
|
|
while [ $count -lt $total ]; do
|
||
|
|
sleep .01
|
||
|
|
count=$(ip -6 route show | grep offload | wc -l)
|
||
|
|
done
|
||
|
|
|
||
|
|
end=$(date +%s.%N)
|
||
|
|
|
||
|
|
diff=$(echo "$end - $start" | bc -l)
|
||
|
|
test "$(echo "$diff > 60" | bc -l)" -eq 0
|
||
|
|
check_err $? "route insertion took too long"
|
||
|
|
log_info "inserted $num_rts routes in $diff seconds"
|
||
|
|
|
||
|
|
log_test "IPv6 routes insertion rate"
|
||
|
|
|
||
|
|
ip -batch $batch_dir/del.batch
|
||
|
|
for i in $(seq 1 $num_nhs); do
|
||
|
|
ip -6 address del 2001:db8:1::10:$i/128 dev $tor1_p1
|
||
|
|
done
|
||
|
|
rm -rf $batch_dir
|
||
|
|
}
|
||
|
|
|
||
|
|
setup_prepare()
|
||
|
|
{
|
||
|
|
spine_p1=${NETIFS[p1]}
|
||
|
|
tor1_p1=${NETIFS[p2]}
|
||
|
|
|
||
|
|
spine_p2=${NETIFS[p3]}
|
||
|
|
tor2_p1=${NETIFS[p4]}
|
||
|
|
|
||
|
|
vrf_prepare
|
||
|
|
forwarding_enable
|
||
|
|
|
||
|
|
tor1_create
|
||
|
|
tor2_create
|
||
|
|
spine_create
|
||
|
|
}
|
||
|
|
|
||
|
|
cleanup()
|
||
|
|
{
|
||
|
|
pre_cleanup
|
||
|
|
|
||
|
|
spine_destroy
|
||
|
|
tor2_destroy
|
||
|
|
tor1_destroy
|
||
|
|
|
||
|
|
forwarding_restore
|
||
|
|
vrf_cleanup
|
||
|
|
}
|
||
|
|
|
||
|
|
trap cleanup EXIT
|
||
|
|
|
||
|
|
setup_prepare
|
||
|
|
setup_wait
|
||
|
|
|
||
|
|
tests_run
|
||
|
|
|
||
|
|
exit $EXIT_STATUS
|