diff options
Diffstat (limited to '')
-rwxr-xr-x | tools/testing/selftests/powerpc/eeh/eeh-basic.sh | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/tools/testing/selftests/powerpc/eeh/eeh-basic.sh b/tools/testing/selftests/powerpc/eeh/eeh-basic.sh new file mode 100755 index 000000000..64779f073 --- /dev/null +++ b/tools/testing/selftests/powerpc/eeh/eeh-basic.sh @@ -0,0 +1,90 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0-only + +KSELFTESTS_SKIP=4 + +. ./eeh-functions.sh + +if ! eeh_supported ; then + echo "EEH not supported on this system, skipping" + exit $KSELFTESTS_SKIP; +fi + +if [ ! -e "/sys/kernel/debug/powerpc/eeh_dev_check" ] && \ + [ ! -e "/sys/kernel/debug/powerpc/eeh_dev_break" ] ; then + echo "debugfs EEH testing files are missing. Is debugfs mounted?" + exit $KSELFTESTS_SKIP; +fi + +pre_lspci=`mktemp` +lspci > $pre_lspci + +# Bump the max freeze count to something absurd so we don't +# trip over it while breaking things. +echo 5000 > /sys/kernel/debug/powerpc/eeh_max_freezes + +# record the devices that we break in here. Assuming everything +# goes to plan we should get them back once the recover process +# is finished. +devices="" + +# Build up a list of candidate devices. +for dev in `ls -1 /sys/bus/pci/devices/ | grep '\.0$'` ; do + # skip bridges since we can't recover them (yet...) + if [ -e "/sys/bus/pci/devices/$dev/pci_bus" ] ; then + echo "$dev, Skipped: bridge" + continue; + fi + + # Skip VFs for now since we don't have a reliable way + # to break them. + if [ -e "/sys/bus/pci/devices/$dev/physfn" ] ; then + echo "$dev, Skipped: virtfn" + continue; + fi + + if [ "ahci" = "$(basename $(realpath /sys/bus/pci/devices/$dev/driver))" ] ; then + echo "$dev, Skipped: ahci doesn't support recovery" + continue + fi + + # Don't inject errosr into an already-frozen PE. This happens with + # PEs that contain multiple PCI devices (e.g. multi-function cards) + # and injecting new errors during the recovery process will probably + # result in the recovery failing and the device being marked as + # failed. + if ! pe_ok $dev ; then + echo "$dev, Skipped: Bad initial PE state" + continue; + fi + + echo "$dev, Added" + + # Add to this list of device to check + devices="$devices $dev" +done + +dev_count="$(echo $devices | wc -w)" +echo "Found ${dev_count} breakable devices..." + +failed=0 +for dev in $devices ; do + echo "Breaking $dev..." + + if ! pe_ok $dev ; then + echo "Skipping $dev, Initial PE state is not ok" + failed="$((failed + 1))" + continue; + fi + + if ! eeh_one_dev $dev ; then + failed="$((failed + 1))" + fi +done + +echo "$failed devices failed to recover ($dev_count tested)" +lspci | diff -u $pre_lspci - +rm -f $pre_lspci + +test "$failed" -eq 0 +exit $? |