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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
##############################################################################
# Defines
DEVLINK_DEV=$(devlink port show "${NETIFS[p1]}" -j \
| jq -r '.port | keys[]' | cut -d/ -f-2)
if [ -z "$DEVLINK_DEV" ]; then
echo "SKIP: ${NETIFS[p1]} has no devlink device registered for it"
exit 1
fi
if [[ "$(echo $DEVLINK_DEV | grep -c pci)" -eq 0 ]]; then
echo "SKIP: devlink device's bus is not PCI"
exit 1
fi
DEVLINK_VIDDID=$(lspci -s $(echo $DEVLINK_DEV | cut -d"/" -f2) \
-n | cut -d" " -f3)
##############################################################################
# Sanity checks
devlink help 2>&1 | grep resource &> /dev/null
if [ $? -ne 0 ]; then
echo "SKIP: iproute2 too old, missing devlink resource support"
exit 1
fi
##############################################################################
# Devlink helpers
devlink_resource_names_to_path()
{
local resource
local path=""
for resource in "${@}"; do
if [ "$path" == "" ]; then
path="$resource"
else
path="${path}/$resource"
fi
done
echo "$path"
}
devlink_resource_get()
{
local name=$1
local resource_name=.[][\"$DEVLINK_DEV\"]
resource_name="$resource_name | .[] | select (.name == \"$name\")"
shift
for resource in "${@}"; do
resource_name="${resource_name} | .[\"resources\"][] | \
select (.name == \"$resource\")"
done
devlink -j resource show "$DEVLINK_DEV" | jq "$resource_name"
}
devlink_resource_size_get()
{
local size=$(devlink_resource_get "$@" | jq '.["size_new"]')
if [ "$size" == "null" ]; then
devlink_resource_get "$@" | jq '.["size"]'
else
echo "$size"
fi
}
devlink_resource_size_set()
{
local new_size=$1
local path
shift
path=$(devlink_resource_names_to_path "$@")
devlink resource set "$DEVLINK_DEV" path "$path" size "$new_size"
check_err $? "Failed setting path $path to size $size"
}
devlink_reload()
{
local still_pending
devlink dev reload "$DEVLINK_DEV" &> /dev/null
check_err $? "Failed reload"
still_pending=$(devlink resource show "$DEVLINK_DEV" | \
grep -c "size_new")
check_err $still_pending "Failed reload - There are still unset sizes"
}
declare -A DEVLINK_ORIG
devlink_port_pool_threshold()
{
local port=$1; shift
local pool=$1; shift
devlink sb port pool show $port pool $pool -j \
| jq '.port_pool."'"$port"'"[].threshold'
}
devlink_port_pool_th_set()
{
local port=$1; shift
local pool=$1; shift
local th=$1; shift
local key="port_pool($port,$pool).threshold"
DEVLINK_ORIG[$key]=$(devlink_port_pool_threshold $port $pool)
devlink sb port pool set $port pool $pool th $th
}
devlink_port_pool_th_restore()
{
local port=$1; shift
local pool=$1; shift
local key="port_pool($port,$pool).threshold"
devlink sb port pool set $port pool $pool th ${DEVLINK_ORIG[$key]}
}
devlink_pool_size_thtype()
{
local pool=$1; shift
devlink sb pool show "$DEVLINK_DEV" pool $pool -j \
| jq -r '.pool[][] | (.size, .thtype)'
}
devlink_pool_size_thtype_set()
{
local pool=$1; shift
local thtype=$1; shift
local size=$1; shift
local key="pool($pool).size_thtype"
DEVLINK_ORIG[$key]=$(devlink_pool_size_thtype $pool)
devlink sb pool set "$DEVLINK_DEV" pool $pool size $size thtype $thtype
}
devlink_pool_size_thtype_restore()
{
local pool=$1; shift
local key="pool($pool).size_thtype"
local -a orig=(${DEVLINK_ORIG[$key]})
devlink sb pool set "$DEVLINK_DEV" pool $pool \
size ${orig[0]} thtype ${orig[1]}
}
devlink_tc_bind_pool_th()
{
local port=$1; shift
local tc=$1; shift
local dir=$1; shift
devlink sb tc bind show $port tc $tc type $dir -j \
| jq -r '.tc_bind[][] | (.pool, .threshold)'
}
devlink_tc_bind_pool_th_set()
{
local port=$1; shift
local tc=$1; shift
local dir=$1; shift
local pool=$1; shift
local th=$1; shift
local key="tc_bind($port,$dir,$tc).pool_th"
DEVLINK_ORIG[$key]=$(devlink_tc_bind_pool_th $port $tc $dir)
devlink sb tc bind set $port tc $tc type $dir pool $pool th $th
}
devlink_tc_bind_pool_th_restore()
{
local port=$1; shift
local tc=$1; shift
local dir=$1; shift
local key="tc_bind($port,$dir,$tc).pool_th"
local -a orig=(${DEVLINK_ORIG[$key]})
devlink sb tc bind set $port tc $tc type $dir \
pool ${orig[0]} th ${orig[1]}
}
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