1 #ifndef BCM63XX_IUDMA_H_
2 #define BCM63XX_IUDMA_H_
3 
4 #include <linux/types.h>
5 
6 /*
7  * rx/tx dma descriptor
8  */
9 struct bcm_enet_desc {
10 	u32 len_stat;
11 	u32 address;
12 };
13 
14 /* control */
15 #define DMADESC_LENGTH_SHIFT	16
16 #define DMADESC_LENGTH_MASK	(0xfff << DMADESC_LENGTH_SHIFT)
17 #define DMADESC_OWNER_MASK	(1 << 15)
18 #define DMADESC_EOP_MASK	(1 << 14)
19 #define DMADESC_SOP_MASK	(1 << 13)
20 #define DMADESC_ESOP_MASK	(DMADESC_EOP_MASK | DMADESC_SOP_MASK)
21 #define DMADESC_WRAP_MASK	(1 << 12)
22 #define DMADESC_USB_NOZERO_MASK (1 << 1)
23 #define DMADESC_USB_ZERO_MASK	(1 << 0)
24 
25 /* status */
26 #define DMADESC_UNDER_MASK	(1 << 9)
27 #define DMADESC_APPEND_CRC	(1 << 8)
28 #define DMADESC_OVSIZE_MASK	(1 << 4)
29 #define DMADESC_RXER_MASK	(1 << 2)
30 #define DMADESC_CRC_MASK	(1 << 1)
31 #define DMADESC_OV_MASK		(1 << 0)
32 #define DMADESC_ERR_MASK	(DMADESC_UNDER_MASK | \
33 				DMADESC_OVSIZE_MASK | \
34 				DMADESC_RXER_MASK | \
35 				DMADESC_CRC_MASK | \
36 				DMADESC_OV_MASK)
37 
38 #endif /* ! BCM63XX_IUDMA_H_ */
39