Commit 31f07233 authored by Dmytro Linkin's avatar Dmytro Linkin Committed by David S. Miller
Browse files

selftest: netdevsim: Add devlink port shared/max tx rate test 



Test verifies that netdevsim VFs can set and retrieve shared/max tx
rate through new devlink API.

Co-developed-by: default avatarVlad Buslov <vladbu@nvidia.com>
Signed-off-by: default avatarVlad Buslov <vladbu@nvidia.com>
Signed-off-by: default avatarDmytro Linkin <dlinkin@nvidia.com>
Reviewed-by: default avatarJiri Pirko <jiri@nvidia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 605c4f8f

tools/testing/selftests/drivers/net/netdevsim/devlink.sh

+55 −0
Original line number Diff line number Diff line
@@ -516,6 +516,45 @@ rate_leafs_get() 
	       '.[] | to_entries | .[] | select(.value.type == "leaf") | .key | select(contains("'$handle'"))'

}



rate_attr_set()

{

	local handle=$1

	local name=$2

	local value=$3

	local units=$4



	devlink port function rate set $handle $name $value$units

}



rate_attr_get()

{

	local handle=$1

	local name=$2



	cmd_jq "devlink port function rate show $handle -j" '.[][].'$name

}



rate_attr_tx_rate_check()

{

	local handle=$1

	local name=$2

	local rate=$3

	local debug_file=$4



	rate_attr_set $handle $name $rate mbit

	check_err $? "Failed to set $name value"



	local debug_value=$(cat $debug_file)

	check_err $? "Failed to read $name value from debugfs"

	[ "$debug_value" == "$rate" ]

	check_err $? "Unexpected $name debug value $debug_value != $rate"



	local api_value=$(( $(rate_attr_get $handle $name) * 8 / 1000000 ))

	check_err $? "Failed to get $name attr value"

	[ "$api_value" == "$rate" ]

	check_err $? "Unexpected $name attr value $api_value != $rate"

}



rate_test()

{

	RET=0
@@ -527,6 +566,22 @@ rate_test() 
	[ "$num_leafs" == "$VF_COUNT" ]

	check_err $? "Expected $VF_COUNT rate leafs but got $num_leafs"



	rate=10

	for r_obj in $leafs

	do

		rate_attr_tx_rate_check $r_obj tx_share $rate \

			$DEBUGFS_DIR/ports/${r_obj##*/}/tx_share

		rate=$(($rate+10))

	done



	rate=100

	for r_obj in $leafs

	do

		rate_attr_tx_rate_check $r_obj tx_max $rate \

			$DEBUGFS_DIR/ports/${r_obj##*/}/tx_max

		rate=$(($rate+100))

	done



	log_test "rate test"

}