forcedeth: dma access

This patch allows the hardware to fetch the tx and rx ring descriptors
with 64 bytes per access instead of 32 bytes.

Signed-Off-By: Ayaz Abdulla <aabdulla@nvidia.com>

Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/forcedeth.c

@@ -304,8 +304,8 @@ enum {
 #define NVREG_TXRXCTL_RESET	0x0010
 #define NVREG_TXRXCTL_RXCHECK	0x0400
 #define NVREG_TXRXCTL_DESC_1	0
-#define NVREG_TXRXCTL_DESC_2	0x02100
-#define NVREG_TXRXCTL_DESC_3	0x02200
+#define NVREG_TXRXCTL_DESC_2	0x002100
+#define NVREG_TXRXCTL_DESC_3	0xc02200
 #define NVREG_TXRXCTL_VLANSTRIP 0x00040
 #define NVREG_TXRXCTL_VLANINS	0x00080
 	NvRegTxRingPhysAddrHigh = 0x148,