#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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##############################################################################
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# Source library
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relative_path="${BASH_SOURCE%/*}"
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if [[ "$relative_path" == "${BASH_SOURCE}" ]]; then
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relative_path="."
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fi
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source "$relative_path/lib.sh"
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##############################################################################
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# Defines
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DEVLINK_DEV=$(devlink port show | grep "${NETIFS[p1]}" | \
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grep -v "${NETIFS[p1]}[0-9]" | cut -d" " -f1 | \
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rev | cut -d"/" -f2- | rev)
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if [ -z "$DEVLINK_DEV" ]; then
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echo "SKIP: ${NETIFS[p1]} has no devlink device registered for it"
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exit 1
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fi
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if [[ "$(echo $DEVLINK_DEV | grep -c pci)" -eq 0 ]]; then
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echo "SKIP: devlink device's bus is not PCI"
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exit 1
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fi
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DEVLINK_VIDDID=$(lspci -s $(echo $DEVLINK_DEV | cut -d"/" -f2) \
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-n | cut -d" " -f3)
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##############################################################################
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# Sanity checks
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devlink -j resource show "$DEVLINK_DEV" &> /dev/null
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if [ $? -ne 0 ]; then
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echo "SKIP: iproute2 too old, missing devlink resource support"
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exit 1
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fi
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##############################################################################
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# Devlink helpers
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devlink_resource_names_to_path()
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{
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local resource
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local path=""
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for resource in "${@}"; do
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if [ "$path" == "" ]; then
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path="$resource"
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else
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path="${path}/$resource"
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fi
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done
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echo "$path"
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}
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devlink_resource_get()
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{
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local name=$1
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local resource_name=.[][\"$DEVLINK_DEV\"]
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resource_name="$resource_name | .[] | select (.name == \"$name\")"
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shift
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for resource in "${@}"; do
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resource_name="${resource_name} | .[\"resources\"][] | \
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select (.name == \"$resource\")"
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done
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devlink -j resource show "$DEVLINK_DEV" | jq "$resource_name"
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}
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devlink_resource_size_get()
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{
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local size=$(devlink_resource_get "$@" | jq '.["size_new"]')
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if [ "$size" == "null" ]; then
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devlink_resource_get "$@" | jq '.["size"]'
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else
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echo "$size"
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fi
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}
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devlink_resource_size_set()
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{
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local new_size=$1
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local path
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shift
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path=$(devlink_resource_names_to_path "$@")
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devlink resource set "$DEVLINK_DEV" path "$path" size "$new_size"
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check_err $? "Failed setting path $path to size $size"
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}
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devlink_reload()
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{
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local still_pending
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devlink dev reload "$DEVLINK_DEV" &> /dev/null
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check_err $? "Failed reload"
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still_pending=$(devlink resource show "$DEVLINK_DEV" | \
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grep -c "size_new")
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check_err $still_pending "Failed reload - There are still unset sizes"
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}
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