Commit 5154b1b8 authored by Danielle Ratson's avatar Danielle Ratson Committed by Jakub Kicinski
Browse files

selftests: mlxsw: Add a scale test for physical ports 



Query the maximum number of supported physical ports using devlink-resource
and test that this number can be reached by splitting each of the
splittable ports to its width. Test that an error is returned in case
the maximum number is exceeded.

Signed-off-by: default avatarDanielle Ratson <danieller@nvidia.com>
Signed-off-by: default avatarIdo Schimmel <idosch@nvidia.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 321f7ab0

tools/testing/selftests/drivers/net/mlxsw/port_scale.sh

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#!/bin/bash

# SPDX-License-Identifier: GPL-2.0



# Test for physical ports resource. The test splits each splittable port

# to its width and checks that eventually the number of physical ports equals

# the maximum number of physical ports.



PORT_NUM_NETIFS=0



port_setup_prepare()

{

	:

}



port_cleanup()

{

	pre_cleanup



	for port in "${unsplit[@]}"; do

		devlink port unsplit $port

		check_err $? "Did not unsplit $netdev"

	done

}



split_all_ports()

{

	local should_fail=$1; shift

	local -a unsplit



	# Loop over the splittable netdevs and create tuples of netdev along

	# with its width. For example:

	# '$netdev1 $count1 $netdev2 $count2...', when:

	# $netdev1-2 are splittable netdevs in the device, and

	# $count1-2 are the netdevs width respectively.

	while read netdev count <<<$(

		devlink -j port show |

		jq -r '.[][] | select(.splittable==true) | "\(.netdev) \(.lanes)"'

		)

		[[ ! -z $netdev ]]

	do

		devlink port split $netdev count $count

		check_err $? "Did not split $netdev into $count"

		unsplit+=( "${netdev}s0" )

	done

}



port_test()

{

	local max_ports=$1; shift

	local should_fail=$1; shift



	split_all_ports $should_fail



	occ=$(devlink -j resource show $DEVLINK_DEV \

	      | jq '.[][][] | select(.name=="physical_ports") |.["occ"]')



	[[ $occ -eq $max_ports ]]

	if [[ $should_fail -eq 0 ]]; then

		check_err $? "Mismatch ports number: Expected $max_ports, got $occ."

	else

		check_err_fail $should_fail $? "Reached more ports than expected"

	fi



}

tools/testing/selftests/drivers/net/mlxsw/spectrum-2/port_scale.sh

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# SPDX-License-Identifier: GPL-2.0

source ../port_scale.sh



port_get_target()

{

	local should_fail=$1

	local target



	target=$(devlink_resource_size_get physical_ports)



	if ((! should_fail)); then

		echo $target

	else

		echo $((target + 1))

	fi

}

tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh

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@@ -28,7 +28,7 @@ cleanup() 


trap cleanup EXIT



ALL_TESTS="router tc_flower mirror_gre tc_police"

ALL_TESTS="router tc_flower mirror_gre tc_police port"

for current_test in ${TESTS:-$ALL_TESTS}; do

	source ${current_test}_scale.sh

tools/testing/selftests/drivers/net/mlxsw/spectrum/port_scale.sh

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# SPDX-License-Identifier: GPL-2.0

source ../port_scale.sh



port_get_target()

{

	local should_fail=$1

	local target



	target=$(devlink_resource_size_get physical_ports)



	if ((! should_fail)); then

		echo $target

	else

		echo $((target + 1))

	fi

}

tools/testing/selftests/drivers/net/mlxsw/spectrum/resource_scale.sh

+1 −1
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@@ -22,7 +22,7 @@ cleanup() 
devlink_sp_read_kvd_defaults

trap cleanup EXIT



ALL_TESTS="router tc_flower mirror_gre tc_police"

ALL_TESTS="router tc_flower mirror_gre tc_police port"

for current_test in ${TESTS:-$ALL_TESTS}; do

	source ${current_test}_scale.sh