debug print

Signed-off-by: Niclas Schad <niclas.schad@stackit.cloud>

Author: nschad

pkg/csi/blockstorage/nodeserver.go

@@ -314,7 +314,8 @@ func (ns *nodeServer) NodeGetInfo(ctx context.Context, _ *csi.NodeGetInfoRequest
 	if err != nil {
 		klog.Errorf("[NodeGetInfo] unable to retrieve PCIe root ports %v", err)
 	} else {
-		if emptyPCIeRootPorts <= 0 {
+		klog.Infof("[NodeGetInfo] found empty PCIe root ports: %d", emptyPCIeRootPorts)
+		if emptyPCIeRootPorts == 0 {
 			klog.Warningf("[NodeGetInfo] node does not have any free PCIe ports")
 			maxVolumesPerNode = 0
 		} else {

pkg/csi/util/mount/mount.go

@@ -142,6 +142,7 @@ func GetEmptyPCIeRootPorts() (int64, error) {
 		// We check the 'class' file. PCI Bridge class code starts with 0x0604
 		classBuf, err := os.ReadFile(filepath.Join(devPath, "class"))
 		if err != nil {
+			klog.Errorf("failed to read PCI device class %s : %v", devPath, err)
 			continue
 		}
 		class := strings.TrimSpace(string(classBuf))
@@ -153,7 +154,10 @@ func GetEmptyPCIeRootPorts() (int64, error) {
 			// If the bridge has children, they appear as subdirectories
 			// matching the PCI address format (e.g., 0000:01:00.0)
 			hasChild := false
-			files, _ := os.ReadDir(devPath)
+			files, err2 := os.ReadDir(devPath)
+			if err2 != nil {
+				klog.Errorf("failed to read dir %s : %v", devPath, err2)
+			}
 			for _, file := range files {
 				// PCI addresses always contain a colon
 				if strings.Contains(file.Name(), ":") {
@@ -165,6 +169,8 @@ func GetEmptyPCIeRootPorts() (int64, error) {
 			if !hasChild {
 				emptyCount++
 			}
+		} else {
+			klog.Infof("skipping class %s: path: %s", class, devPath)
 		}
 	}