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selftests: netdevsim: add tests for devlink reload with resources

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Add couple of tests for devlink reload testing and also resource
limitations testing, along with devlink reload.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2019-10-03 11:49:40 +02:00 committed by David S. Miller
parent 070c63f20f
commit b74c37fd35
1 changed files with 119 additions and 1 deletions
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120
tools/testing/selftests/drivers/net/netdevsim/devlink.sh
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@ -3,7 +3,8 @@
lib_dir=$(dirname $0)/../../../net/forwarding
ALL_TESTS="fw_flash_test params_test regions_test"
ALL_TESTS="fw_flash_test params_test regions_test reload_test \
netns_reload_test resource_test"
NUM_NETIFS=0
source $lib_dir/lib.sh
@ -142,6 +143,123 @@ regions_test()
log_test "regions test"
}
reload_test()
{
RET=0
devlink dev reload $DL_HANDLE
check_err $? "Failed to reload"
log_test "reload test"
}
netns_reload_test()
{
RET=0
ip netns add testns1
check_err $? "Failed add netns \"testns1\""
ip netns add testns2
check_err $? "Failed add netns \"testns2\""
devlink dev reload $DL_HANDLE netns testns1
check_err $? "Failed to reload into netns \"testns1\""
devlink -N testns1 dev reload $DL_HANDLE netns testns2
check_err $? "Failed to reload from netns \"testns1\" into netns \"testns2\""
ip netns del testns2
ip netns del testns1
log_test "netns reload test"
}
DUMMYDEV="dummytest"
res_val_get()
{
local netns=$1
local parentname=$2
local name=$3
local type=$4
cmd_jq "devlink -N $netns resource show $DL_HANDLE -j" \
".[][][] | select(.name == \"$parentname\").resources[] \
| select(.name == \"$name\").$type"
}
resource_test()
{
RET=0
ip netns add testns1
check_err $? "Failed add netns \"testns1\""
ip netns add testns2
check_err $? "Failed add netns \"testns2\""
devlink dev reload $DL_HANDLE netns testns1
check_err $? "Failed to reload into netns \"testns1\""
# Create dummy dev to add the address and routes on.
ip -n testns1 link add name $DUMMYDEV type dummy
check_err $? "Failed create dummy device"
ip -n testns1 link set $DUMMYDEV up
check_err $? "Failed bring up dummy device"
ip -n testns1 a a 192.0.1.1/24 dev $DUMMYDEV
check_err $? "Failed add an IP address to dummy device"
local occ=$(res_val_get testns1 IPv4 fib occ)
local limit=$((occ+1))
# Set fib size limit to handle one another route only.
devlink -N testns1 resource set $DL_HANDLE path IPv4/fib size $limit
check_err $? "Failed to set IPv4/fib resource size"
local size_new=$(res_val_get testns1 IPv4 fib size_new)
[ "$size_new" -eq "$limit" ]
check_err $? "Unexpected \"size_new\" value (got $size_new, expected $limit)"
devlink -N testns1 dev reload $DL_HANDLE
check_err $? "Failed to reload"
local size=$(res_val_get testns1 IPv4 fib size)
[ "$size" -eq "$limit" ]
check_err $? "Unexpected \"size\" value (got $size, expected $limit)"
# Insert 2 routes, the first is going to be inserted,
# the second is expected to fail to be inserted.
ip -n testns1 r a 192.0.2.0/24 via 192.0.1.2
check_err $? "Failed to add route"
ip -n testns1 r a 192.0.3.0/24 via 192.0.1.2
check_fail $? "Unexpected successful route add over limit"
# Now create another dummy in second network namespace and
# insert two routes. That is over the limit of the netdevsim
# instance in the first namespace. Move the netdevsim instance
# into the second namespace and expect it to fail.
ip -n testns2 link add name $DUMMYDEV type dummy
check_err $? "Failed create dummy device"
ip -n testns2 link set $DUMMYDEV up
check_err $? "Failed bring up dummy device"
ip -n testns2 a a 192.0.1.1/24 dev $DUMMYDEV
check_err $? "Failed add an IP address to dummy device"
ip -n testns2 r a 192.0.2.0/24 via 192.0.1.2
check_err $? "Failed to add route"
ip -n testns2 r a 192.0.3.0/24 via 192.0.1.2
check_err $? "Failed to add route"
devlink -N testns1 dev reload $DL_HANDLE netns testns2
check_fail $? "Unexpected successful reload from netns \"testns1\" into netns \"testns2\""
ip netns del testns2
ip netns del testns1
log_test "resource test"
}
setup_prepare()
{
modprobe netdevsim