l2_ctl_of_parse_property
ret = l2_ctl_of_parse_property(l2, L2_WS_STALL, "baikal,l2-ws-latency");
ret = l2_ctl_of_parse_property(l2, L2_TAG_STALL, "baikal,l2-tag-latency");
return l2_ctl_of_parse_property(l2, L2_DATA_STALL,