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selftest: netdevsim: Add devlink rate tc-bw test

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Test verifies that netdevsim correctly implements devlink ops callbacks
that set tc-bw on leaf or node rate object.

Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20250629142138.361537-4-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Carolina Jubran
2025-06-29 17:21:33 +03:00
committed by Jakub Kicinski
parent 566e8f108f
commit 236156d80d
3 changed files with 97 additions and 0 deletions
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53
tools/testing/selftests/drivers/net/netdevsim/devlink.sh
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@@ -608,6 +608,46 @@ rate_attr_parent_check()
check_err $? "Unexpected parent attr value $api_value != $parent"
}
rate_attr_tc_bw_check()
{
local handle=$1
local tc_bw=$2
local debug_file=$3
local tc_bw_str=""
for bw in $tc_bw; do
local tc=${bw%%:*}
local value=${bw##*:}
tc_bw_str="$tc_bw_str $tc:$value"
done
tc_bw_str=${tc_bw_str# }
rate_attr_set "$handle" tc-bw "$tc_bw_str"
check_err $? "Failed to set tc-bw values"
for bw in $tc_bw; do
local tc=${bw%%:*}
local value=${bw##*:}
local debug_value
debug_value=$(cat "$debug_file"/tc"${tc}"_bw)
check_err $? "Failed to read tc-bw value from debugfs for tc$tc"
[ "$debug_value" == "$value" ]
check_err $? "Unexpected tc-bw debug value for tc$tc: $debug_value != $value"
done
for bw in $tc_bw; do
local tc=${bw%%:*}
local expected_value=${bw##*:}
local api_value
api_value=$(rate_attr_get "$handle" tc_"$tc")
if [ "$api_value" = "null" ]; then
api_value=0
fi
[ "$api_value" == "$expected_value" ]
check_err $? "Unexpected tc-bw value for tc$tc: $api_value != $expected_value"
done
}
rate_node_add()
{
local handle=$1
@@ -649,6 +689,13 @@ rate_test()
rate=$(($rate+100))
done
local tc_bw="0:0 1:40 2:0 3:0 4:0 5:0 6:60 7:0"
for r_obj in $leafs
do
rate_attr_tc_bw_check "$r_obj" "$tc_bw" \
"$DEBUGFS_DIR"/ports/"${r_obj##*/}"
done
local node1_name='group1'
local node1="$DL_HANDLE/$node1_name"
rate_node_add "$node1"
@@ -666,6 +713,12 @@ rate_test()
rate_attr_tx_rate_check $node1 tx_max $node_tx_max \
$DEBUGFS_DIR/rate_nodes/${node1##*/}/tx_max
local tc_bw="0:20 1:0 2:0 3:0 4:0 5:20 6:60 7:0"
rate_attr_tc_bw_check $node1 "$tc_bw" \
"$DEBUGFS_DIR"/rate_nodes/"${node1##*/}"
rate_node_del "$node1"
check_err $? "Failed to delete node $node1"
local num_nodes=`rate_nodes_get $DL_HANDLE | wc -w`