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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
##############################################################################
# Source library
relative_path="${BASH_SOURCE%/*}"
if [[ "$relative_path" == "${BASH_SOURCE}" ]]; then
relative_path="."
fi
source "$relative_path/lib.sh"
##############################################################################
# Defines
DEVLINK_DEV=$(devlink port show | grep "${NETIFS[p1]}" | \
grep -v "${NETIFS[p1]}[0-9]" | cut -d" " -f1 | \
rev | cut -d"/" -f2- | rev)
if [ -z "$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 $DEVLINK_DEV | cut -d"/" -f2) \
-n | cut -d" " -f3)
##############################################################################
# Sanity checks
devlink -j resource show "$DEVLINK_DEV" &> /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"
}
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