via-rhine: set avoid_D3 for broken BIOSes

This patch sets avoid_D3 for BIOSes known to be broken. Said BIOSes fail
at PXE boot if the chip is in power state D3.
Signed-off-by: NRoger Luethi <rl@hellgate.ch>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

drivers/net/via-rhine.c

@@ -30,8 +30,8 @@
 */
 
 #define DRV_NAME	"via-rhine"
-#define DRV_VERSION	"1.4.2"
-#define DRV_RELDATE	"Sept-11-2006"
+#define DRV_VERSION	"1.4.3"
+#define DRV_RELDATE	"2007-03-06"
 
 
 /* A few user-configurable values.
@@ -105,6 +105,7 @@ static const int multicast_filter_limit = 32;
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/uaccess.h>
+#include <linux/dmi.h>
 
 /* These identify the driver base version and may not be removed. */
 static char version[] __devinitdata =
@@ -1995,6 +1996,23 @@ static struct pci_driver rhine_driver = {
 	.shutdown =	rhine_shutdown,
 };
 
+static struct dmi_system_id __initdata rhine_dmi_table[] = {
+	{
+		.ident = "EPIA-M",
+		.matches = {
+			DMI_MATCH(DMI_BIOS_VENDOR, "Award Software International, Inc."),
+			DMI_MATCH(DMI_BIOS_VERSION, "6.00 PG"),
+		},
+	},
+	{
+		.ident = "KV7",
+		.matches = {
+			DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"),
+			DMI_MATCH(DMI_BIOS_VERSION, "6.00 PG"),
+		},
+	},
+	{ NULL }
+};
 
 static int __init rhine_init(void)
 {
@@ -2002,6 +2020,16 @@ static int __init rhine_init(void)
 #ifdef MODULE
 	printk(version);
 #endif
+	if (dmi_check_system(rhine_dmi_table)) {
+		/* these BIOSes fail at PXE boot if chip is in D3 */
+		avoid_D3 = 1;
+		printk(KERN_WARNING "%s: Broken BIOS detected, avoid_D3 "
+				    "enabled.\n",
+		       DRV_NAME);
+	}
+	else if (avoid_D3)
+		printk(KERN_INFO "%s: avoid_D3 set.\n", DRV_NAME);
+
 	return pci_register_driver(&rhine_driver);
 }