spidernet: Replace literal with const

Replace literal with const; add bit definitions.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/spider_net.h b/drivers/net/spider_net.h
index 04007d7..dbbdb8c 100644
--- a/drivers/net/spider_net.h
+++ b/drivers/net/spider_net.h
@@ -354,6 +354,18 @@
 #define SPIDER_NET_DMAC_UDP			0x00030000
 #define SPIDER_NET_TXDCEST			0x08000000
 
+#define SPIDER_NET_DESCR_RXFDIS        0x00000001
+#define SPIDER_NET_DESCR_RXDCEIS       0x00000002
+#define SPIDER_NET_DESCR_RXDEN0IS      0x00000004
+#define SPIDER_NET_DESCR_RXINVDIS      0x00000008
+#define SPIDER_NET_DESCR_RXRERRIS      0x00000010
+#define SPIDER_NET_DESCR_RXFDCIMS      0x00000100
+#define SPIDER_NET_DESCR_RXDCEIMS      0x00000200
+#define SPIDER_NET_DESCR_RXDEN0IMS     0x00000400
+#define SPIDER_NET_DESCR_RXINVDIMS     0x00000800
+#define SPIDER_NET_DESCR_RXRERRMIS     0x00001000
+#define SPIDER_NET_DESCR_UNUSED        0x077fe0e0
+
 #define SPIDER_NET_DESCR_IND_PROC_MASK		0xF0000000
 #define SPIDER_NET_DESCR_COMPLETE		0x00000000 /* used in rx and tx */
 #define SPIDER_NET_DESCR_RESPONSE_ERROR		0x10000000 /* used in rx and tx */
@@ -364,6 +376,13 @@
 #define SPIDER_NET_DESCR_NOT_IN_USE		0xF0000000
 #define SPIDER_NET_DESCR_TXDESFLG		0x00800000
 
+#define SPIDER_NET_DESCR_BAD_STATUS   (SPIDER_NET_DESCR_RXDEN0IS | \
+                                       SPIDER_NET_DESCR_RXRERRIS | \
+                                       SPIDER_NET_DESCR_RXDEN0IMS | \
+                                       SPIDER_NET_DESCR_RXINVDIMS | \
+                                       SPIDER_NET_DESCR_RXRERRMIS | \
+                                       SPIDER_NET_DESCR_UNUSED)
+
 /* Descriptor, as defined by the hardware */
 struct spider_net_hw_descr {
 	u32 buf_addr;