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# SPDX-License-Identifier: GPL-2.0-or-later
readonly DEVICES_DIR="${TMPDIR:-/tmp}/vfio-selftests-devices"
function write_to() {
# Unfortunately set -x does not show redirects so use echo to manually
# tell the user what commands are being run.
echo "+ echo \"${2}\" > ${1}"
echo "${2}" > ${1}
}
function get_driver() {
if [ -L /sys/bus/pci/devices/${1}/driver ]; then
basename $(readlink -m /sys/bus/pci/devices/${1}/driver)
fi
}
function bind() {
write_to /sys/bus/pci/drivers/${2}/bind ${1}
}
function unbind() {
write_to /sys/bus/pci/drivers/${2}/unbind ${1}
}
function set_sriov_numvfs() {
write_to /sys/bus/pci/devices/${1}/sriov_numvfs ${2}
}
function get_sriov_numvfs() {
if [ -f /sys/bus/pci/devices/${1}/sriov_numvfs ]; then
cat /sys/bus/pci/devices/${1}/sriov_numvfs
fi
}
function set_driver_override() {
write_to /sys/bus/pci/devices/${1}/driver_override ${2}
}
function clear_driver_override() {
set_driver_override ${1} ""
}
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