| #!/bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # |
| # Test that PCI reset works correctly by verifying that only the expected reset |
| # methods are supported and that after issuing the reset the ifindex of the |
| # port changes. |
| |
| lib_dir=$(dirname $0)/../../../net/forwarding |
| |
| ALL_TESTS=" |
| pci_reset_test |
| " |
| NUM_NETIFS=1 |
| source $lib_dir/lib.sh |
| source $lib_dir/devlink_lib.sh |
| |
| pci_reset_test() |
| { |
| RET=0 |
| |
| local bus=$(echo $DEVLINK_DEV | cut -d '/' -f 1) |
| local bdf=$(echo $DEVLINK_DEV | cut -d '/' -f 2) |
| |
| if [ $bus != "pci" ]; then |
| check_err 1 "devlink device is not a PCI device" |
| log_test "pci reset" |
| return |
| fi |
| |
| if [ ! -f /sys/bus/pci/devices/$bdf/reset_method ]; then |
| check_err 1 "reset is not supported" |
| log_test "pci reset" |
| return |
| fi |
| |
| [[ $(cat /sys/bus/pci/devices/$bdf/reset_method) == "bus" ]] |
| check_err $? "only \"bus\" reset method should be supported" |
| |
| local ifindex_pre=$(ip -j link show dev $swp1 | jq '.[]["ifindex"]') |
| |
| echo 1 > /sys/bus/pci/devices/$bdf/reset |
| check_err $? "reset failed" |
| |
| # Wait for udev to rename newly created netdev. |
| udevadm settle |
| |
| local ifindex_post=$(ip -j link show dev $swp1 | jq '.[]["ifindex"]') |
| |
| [[ $ifindex_pre != $ifindex_post ]] |
| check_err $? "reset not performed" |
| |
| log_test "pci reset" |
| } |
| |
| swp1=${NETIFS[p1]} |
| tests_run |
| |
| exit $EXIT_STATUS |
