Add PNP info to PCI attachment of glxsb driver

Reviewed by: imp, chuck
Submitted by: Lakhan Shiva Kamireddy <lakhanshiva@gmail.com>
Sponsored by: Google, Inc. (GSoC 2018)
Pull Request: #5

sys/dev/glxsb/glxsb.c

@@ -219,6 +219,16 @@ static int  glxsb_crypto_encdec(struct cryptop *, struct cryptodesc *,
 static void glxsb_crypto_task(void *, int);
 static int  glxsb_crypto_process(device_t, struct cryptop *, int);
 
+static struct glxsb_dev{
+	uint16_t vendorid;
+	uint16_t deviceid;
+	const char *description;
+} glxsb_devs[] = {
+	{PCI_VENDOR_AMD, PCI_PRODUCT_AMD_GEODE_LX_CRYPTO,
+	    "AMD Geode LX Security Block (AES-128-CBC, RNG)"},
+	{0, 0, NULL},
+};
+
 static device_method_t glxsb_methods[] = {
 	/* device interface */
 	DEVMETHOD(device_probe,		glxsb_probe),
@@ -242,18 +252,28 @@ static driver_t glxsb_driver = {
 static devclass_t glxsb_devclass;
 
 DRIVER_MODULE(glxsb, pci, glxsb_driver, glxsb_devclass, 0, 0);
+MODULE_PNP_INFO("U16:vendor;U16:device", pci, glxsb, glxsb_devs,
+    sizeof(glxsb_devs[0]), nitems(glxsb_devs) - 1);
 MODULE_VERSION(glxsb, 1);
 MODULE_DEPEND(glxsb, crypto, 1, 1, 1);
 
 static int
 glxsb_probe(device_t dev)
 {
-
-	if (pci_get_vendor(dev) == PCI_VENDOR_AMD &&
-	    pci_get_device(dev) == PCI_PRODUCT_AMD_GEODE_LX_CRYPTO) {
-		device_set_desc(dev,
-		    "AMD Geode LX Security Block (AES-128-CBC, RNG)");
-		return (BUS_PROBE_DEFAULT);
+	uint16_t vid;
+	uint16_t did;
+	const struct glxsb_dev *glxd;
+	size_t i;
+
+	vid = pci_get_vendor(dev);
+	did = pci_get_device(dev);
+	for(i=0; i<nitems(glxsb_devs) - 1; i++){
+		glxd = &glxd_devs[i];
+		if (vid == glxd->vendorid &&
+		    did == glxd->deviceid){
+			device_set_desc(dev, glxd->description);
+			return (BUS_PROBE_DEFAULT);
+		}
 	}
 
 	return (ENXIO);