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#!/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
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