1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef BCM63XX_IUDMA_H_
3 #define BCM63XX_IUDMA_H_
4
5 #include <linux/types.h>
6
7 /*
8 * rx/tx dma descriptor
9 */
10 struct bcm_enet_desc {
11 u32 len_stat;
12 u32 address;
13 };
14
15 /* control */
16 #define DMADESC_LENGTH_SHIFT 16
17 #define DMADESC_LENGTH_MASK (0xfff << DMADESC_LENGTH_SHIFT)
18 #define DMADESC_OWNER_MASK (1 << 15)
19 #define DMADESC_EOP_MASK (1 << 14)
20 #define DMADESC_SOP_MASK (1 << 13)
21 #define DMADESC_ESOP_MASK (DMADESC_EOP_MASK | DMADESC_SOP_MASK)
22 #define DMADESC_WRAP_MASK (1 << 12)
23 #define DMADESC_USB_NOZERO_MASK (1 << 1)
24 #define DMADESC_USB_ZERO_MASK (1 << 0)
25
26 /* status */
27 #define DMADESC_UNDER_MASK (1 << 9)
28 #define DMADESC_APPEND_CRC (1 << 8)
29 #define DMADESC_OVSIZE_MASK (1 << 4)
30 #define DMADESC_RXER_MASK (1 << 2)
31 #define DMADESC_CRC_MASK (1 << 1)
32 #define DMADESC_OV_MASK (1 << 0)
33 #define DMADESC_ERR_MASK (DMADESC_UNDER_MASK | \
34 DMADESC_OVSIZE_MASK | \
35 DMADESC_RXER_MASK | \
36 DMADESC_CRC_MASK | \
37 DMADESC_OV_MASK)
38
39 #endif /* ! BCM63XX_IUDMA_H_ */
40
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