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Simplify handling of custom firmware path

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Signed-off-by: Evan Lezar <elezar@nvidia.com>
This commit is contained in:
Evan Lezar 2023-07-07 15:19:23 +02:00
parent 0a37f8798a
commit d3d41a3e1d
1 changed files with 17 additions and 9 deletions
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26
pkg/nvcdi/driver-nvml.go
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@ -101,7 +101,7 @@ func NewDriverLibraryDiscoverer(logger logger.Interface, driverRoot string, nvid
return d, nil
}
func getUTSRelease(logger logger.Interface) (string, error) {
func getUTSRelease() (string, error) {
utsname := &unix.Utsname{}
if err := unix.Uname(utsname); err != nil {
return "", err
@ -110,7 +110,7 @@ func getUTSRelease(logger logger.Interface) (string, error) {
}
func getFirmwareSearchPaths(logger logger.Interface) ([]string, error) {
utsRelease, err := getUTSRelease(logger)
utsRelease, err := getUTSRelease()
if err != nil {
return nil, fmt.Errorf("failed to get UTS_RELEASE: %v", err)
}
@ -122,21 +122,29 @@ func getFirmwareSearchPaths(logger logger.Interface) ([]string, error) {
filepath.Join("/lib/firmware/"),
}
customFirmwareClassPath, err := os.ReadFile("/sys/module/firmware_class/parameters/path")
if err != nil {
return nil, fmt.Errorf("failed to get custom firmware class path for driver version: %v", err)
}
if !(len(customFirmwareClassPath) == 1 && customFirmwareClassPath[0] == byte(10)) {
firmwarePaths = append(firmwarePaths, string(customFirmwareClassPath))
if p := getCustomFirmwareClassPath(logger); p != "" {
logger.Debugf("using custom firmware class path: %s", p)
firmwarePaths = append(firmwarePaths, p)
}
return firmwarePaths, nil
}
// getCustomFirmwareClassPath returns the custom firmware class path if it exists.
func getCustomFirmwareClassPath(logger logger.Interface) string {
customFirmwareClassPath, err := os.ReadFile("/sys/module/firmware_class/parameters/path")
if err != nil {
logger.Warningf("failed to get custom firmware class path: %v", err)
return ""
}
return strings.TrimSpace(string(customFirmwareClassPath))
}
// NewDriverFirmwareDiscoverer creates a discoverer for GSP firmware associated with the specified driver version.
func NewDriverFirmwareDiscoverer(logger logger.Interface, driverRoot string, version string) (discover.Discover, error) {
gspFirmwareSearchPaths, err := getFirmwareSearchPaths(logger)
if err != nil {
return nil, fmt.Errorf("failed to get libraries for driver version: %v", err)
return nil, fmt.Errorf("failed to get firmware search paths: %v", err)
}
gspFirmwarePaths := filepath.Join("nvidia", version, "gsp*.bin")
return discover.NewMounts(