linux/tools/testing/selftests/drivers/net/mlxsw/spectrum/rif_counter_scale.sh

# SPDX-License-Identifier: GPL-2.0
source ../rif_counter_scale.sh

rif_counter_get_target()
{
	local should_fail=$1; shift
	local max_cnts
	local max_rifs
	local target

	max_rifs=$(devlink_resource_size_get rifs)
	max_cnts=$(devlink_resource_size_get counters rif)

	# Remove already allocated RIFs.
	((max_rifs -= $(devlink_resource_occ_get rifs)))

	# 10 KVD slots per counter, ingress+egress counters per RIF
	((max_cnts /= 20))

	# Pointless to run the overflow test if we don't have enough RIFs to
	# host all the counters.
	if ((max_cnts > max_rifs && should_fail)); then
		echo 0
		return
	fi

	target=$((max_rifs < max_cnts ? max_rifs : max_cnts))

	if ((! should_fail)); then
		echo $target
	else
		echo $((target + 1))
	fi
}