From: Klaus Jensen <k.jensen@xxxxxxxxxxx>
Devices that actually honor the Bus Master Enable bit and considers the
resulting failure to read/write a fatal error, often ends up getting
disabled by the kernel when running block/011.
Remove the device and rescan the pci bus after completing the test to
make sure we bring the device back up if required.
Cc: Keith Busch <kbusch@xxxxxxxxxx>
Cc: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>
Signed-off-by: Klaus Jensen <k.jensen@xxxxxxxxxxx>
---
tests/block/011 | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tests/block/011 b/tests/block/011
index 4f331b4a7522..f1306ae3896f 100755
--- a/tests/block/011
+++ b/tests/block/011
@@ -22,6 +22,7 @@ test_device() {
echo "Running ${TEST_NAME}"
pdev="$(_get_pci_dev_from_blkdev)"
+ sysfs="/sys/bus/pci/devices/${pdev}"
if _test_dev_is_rotational; then
size="32m"
@@ -42,4 +43,8 @@ test_device() {
done
echo "Test complete"
+
+ # bring the device back up if it was disabled by the kernel
+ echo 1 > "${sysfs}/remove"
+ echo 1 > /sys/bus/pci/rescan
}
--
2.28.0
