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# SPDX-License-Identifier: GPL-2.0-or-later
set -e
source $(dirname -- "${BASH_SOURCE[0]}")/lib.sh
function main() {
local device_bdf
local device_dir
local numvfs
local driver
if [ $# = 0 ]; then
echo "usage: $0 segment:bus:device.function ..." >&2
exit 1
fi
for device_bdf in "$@"; do
test -d /sys/bus/pci/devices/${device_bdf}
device_dir=${DEVICES_DIR}/${device_bdf}
if [ -d "${device_dir}" ]; then
echo "${device_bdf} has already been set up, exiting."
exit 0
fi
mkdir -p ${device_dir}
numvfs=$(get_sriov_numvfs ${device_bdf})
if [ "${numvfs}" ]; then
set_sriov_numvfs ${device_bdf} 0
echo ${numvfs} > ${device_dir}/sriov_numvfs
fi
driver=$(get_driver ${device_bdf})
if [ "${driver}" ]; then
unbind ${device_bdf} ${driver}
echo ${driver} > ${device_dir}/driver
fi
set_driver_override ${device_bdf} vfio-pci
touch ${device_dir}/driver_override
bind ${device_bdf} vfio-pci
touch ${device_dir}/vfio-pci
done
}
main "$@"
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