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selftests: forwarding: lib.sh: Add wait for dev with timeout

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Add a function that waits for device with maximum number of iterations.
It enables to limit the waiting and prevent infinite loop.

This will be used by the subsequent patch which will set two ports to
different speeds in order to make sure they cannot negotiate a link.

Waiting for all the setup is limited with 10 minutes for each device.

Signed-off-by: Amit Cohen <amitc@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amit Cohen 2019-11-18 09:50:01 +02:00 committed by David S. Miller
parent 646cf7ed9a
commit 8f72a9cf36
1 changed files with 26 additions and 3 deletions
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29
tools/testing/selftests/net/forwarding/lib.sh
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@ -18,6 +18,8 @@ NETIF_CREATE=${NETIF_CREATE:=yes}
MCD=${MCD:=smcrouted}
MC_CLI=${MC_CLI:=smcroutectl}
PING_TIMEOUT=${PING_TIMEOUT:=5}
WAIT_TIMEOUT=${WAIT_TIMEOUT:=20}
INTERFACE_TIMEOUT=${INTERFACE_TIMEOUT:=600}
relative_path="${BASH_SOURCE%/*}"
if [[ "$relative_path" == "${BASH_SOURCE}" ]]; then
@ -226,24 +228,45 @@ log_info()
setup_wait_dev()
{
local dev=$1; shift
local wait_time=${1:-$WAIT_TIME}; shift
while true; do
setup_wait_dev_with_timeout "$dev" $INTERFACE_TIMEOUT $wait_time
if (($?)); then
check_err 1
log_test setup_wait_dev ": Interface $dev does not come up."
exit 1
fi
}
setup_wait_dev_with_timeout()
{
local dev=$1; shift
local max_iterations=${1:-$WAIT_TIMEOUT}; shift
local wait_time=${1:-$WAIT_TIME}; shift
local i
for ((i = 1; i <= $max_iterations; ++i)); do
ip link show dev $dev up \
| grep 'state UP' &> /dev/null
if [[ $? -ne 0 ]]; then
sleep 1
else
break
sleep $wait_time
return 0
fi
done
return 1
}
setup_wait()
{
local num_netifs=${1:-$NUM_NETIFS}
local i
for ((i = 1; i <= num_netifs; ++i)); do
setup_wait_dev ${NETIFS[p$i]}
setup_wait_dev ${NETIFS[p$i]} 0
done
# Make sure links are ready.