Commit 8f72a9cf authored by Amit Cohen's avatar Amit Cohen Committed by David S. Miller
Browse files

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



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: default avatarAmit Cohen <amitc@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 646cf7ed

tools/testing/selftests/net/forwarding/lib.sh

+26 −3
Original line number Diff line number Diff line
@@ -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.

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