[PATCH blktests 1/2] rc: add helpers to handle PCI test devices

[Johannes Thumshirn <jthumshirn@xxxxxxx>]

Add two helpers to check whether a device is attached via PCI and to get the
PCI device from a TEST_DEV

Signed-off-by: Johannes Thumshirn <jthumshirn@xxxxxxx>
---
 common/rc | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/common/rc b/common/rc
index b01f936b878b..497cf81ec475 100644
--- a/common/rc
+++ b/common/rc
@@ -120,3 +120,18 @@ _test_dev_queue_set() {
 	fi
 	echo "$2" >"${TEST_DEV_SYSFS}/queue/$1"
 }
+
+_test_dev_is_pci() {
+	if ! readlink -f "$TEST_DEV_SYSFS/device" | grep -q pci; then
+		SKIP_REASON="$TEST_DEV is not a PCI device"
+		return 1
+	fi
+	return 0
+}
+
+_get_pci_dev_from_blkdev() {
+	pdev="$(readlink -f "$TEST_DEV_SYSFS/device" | \
+		grep -Eo '[0-9a-f]{4}:[0-9a-f]{2}:[0-9a-f]{2}\.[0-9a-f]')"
+
+	echo "$pdev"
+}
-- 
2.12.3