extra debugging logs

Signed-off-by: Avi Deitcher <[email protected]>

Author: deitch

pkg/nvcdi/full-gpu-nvml.go

@@ -84,19 +84,23 @@ var _ discover.Discover = (*byPathHookDiscoverer)(nil)
 
 // newFullGPUDiscoverer creates a discoverer for the full GPU defined by the specified device.
 func newFullGPUDiscoverer(logger logger.Interface, devRoot string, nvidiaCDIHookPath string, d device.Device) (discover.Discover, error) {
+	logger.Debugf("newFullGPUDiscoverer() devRoot %s device %#v", devRoot, d)
 	// TODO: The functionality to get device paths should be integrated into the go-nvlib/pkg/device.Device interface.
 	// This will allow reuse here and in other code where the paths are queried such as the NVIDIA device plugin.
 	minor, ret := d.GetMinorNumber()
 	if ret != nvml.SUCCESS {
 		return nil, fmt.Errorf("error getting GPU device minor number: %v", ret)
 	}
 	path := fmt.Sprintf("/dev/nvidia%d", minor)
+	logger.Debugf("newFullGPUDiscoverer() minor %d", minor)
 
 	pciInfo, ret := d.GetPciInfo()
 	if ret != nvml.SUCCESS {
 		return nil, fmt.Errorf("error getting PCI info for device: %v", ret)
 	}
+	logger.Debugf("newFullGPUDiscoverer() pciInfo %#v", pciInfo)
 	pciBusID := getBusID(pciInfo)
+	logger.Debugf("newFullGPUDiscoverer() pciBusID %s", pciBusID)
 
 	drmDeviceNodes, err := drm.GetDeviceNodesByBusID(pciBusID)
 	if err != nil {
@@ -172,7 +176,9 @@ func (d *byPathHookDiscoverer) Mounts() ([]discover.Mount, error) {
 }
 
 func (d *byPathHookDiscoverer) deviceNodeLinks() ([]string, error) {
+	d.logger.Debugf("byPathHookDiscoverer.deviceNodeLinks() for %#v", *d)
 	devices, err := d.deviceNodes.Devices()
+	d.logger.Debugf("byPathHookDiscoverer.deviceNodeLinks() devices %#v", devices)
 	if err != nil {
 		return nil, fmt.Errorf("failed to discover device nodes: %v", err)
 	}
@@ -190,6 +196,7 @@ func (d *byPathHookDiscoverer) deviceNodeLinks() ([]string, error) {
 		fmt.Sprintf("/dev/dri/by-path/pci-%s-card", d.pciBusID),
 		fmt.Sprintf("/dev/dri/by-path/pci-%s-render", d.pciBusID),
 	}
+	d.logger.Debugf("byPathHookDiscoverer.deviceNodeLinks() candidates %v", candidates)
 
 	var links []string
 	for _, c := range candidates {