1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
 4 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
 5 */
 6
 7#ifndef _RQ_ENET_DESC_H_
 8#define _RQ_ENET_DESC_H_
 9
10/* Ethernet receive queue descriptor: 16B */
11struct rq_enet_desc {
12	__le64 address;
13	__le16 length_type;
14	u8 reserved[6];
15};
16
17enum rq_enet_type_types {
18	RQ_ENET_TYPE_ONLY_SOP = 0,
19	RQ_ENET_TYPE_NOT_SOP = 1,
20	RQ_ENET_TYPE_RESV2 = 2,
21	RQ_ENET_TYPE_RESV3 = 3,
22};
23
24#define RQ_ENET_ADDR_BITS		64
25#define RQ_ENET_LEN_BITS		14
26#define RQ_ENET_LEN_MASK		((1 << RQ_ENET_LEN_BITS) - 1)
27#define RQ_ENET_TYPE_BITS		2
28#define RQ_ENET_TYPE_MASK		((1 << RQ_ENET_TYPE_BITS) - 1)
29
30static inline void rq_enet_desc_enc(struct rq_enet_desc *desc,
31	u64 address, u8 type, u16 length)
32{
33	desc->address = cpu_to_le64(address);
34	desc->length_type = cpu_to_le16((length & RQ_ENET_LEN_MASK) |
35		((type & RQ_ENET_TYPE_MASK) << RQ_ENET_LEN_BITS));
36}
37
38static inline void rq_enet_desc_dec(struct rq_enet_desc *desc,
39	u64 *address, u8 *type, u16 *length)
40{
41	*address = le64_to_cpu(desc->address);
42	*length = le16_to_cpu(desc->length_type) & RQ_ENET_LEN_MASK;
43	*type = (u8)((le16_to_cpu(desc->length_type) >> RQ_ENET_LEN_BITS) &
44		RQ_ENET_TYPE_MASK);
45}
46
47#endif /* _RQ_ENET_DESC_H_ */

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
 4 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
 5 */
 6
 7#ifndef _RQ_ENET_DESC_H_
 8#define _RQ_ENET_DESC_H_
 9
10/* Ethernet receive queue descriptor: 16B */
11struct rq_enet_desc {
12	__le64 address;
13	__le16 length_type;
14	u8 reserved[6];
15};
16
17enum rq_enet_type_types {
18	RQ_ENET_TYPE_ONLY_SOP = 0,
19	RQ_ENET_TYPE_NOT_SOP = 1,
20	RQ_ENET_TYPE_RESV2 = 2,
21	RQ_ENET_TYPE_RESV3 = 3,
22};
23
24#define RQ_ENET_ADDR_BITS		64
25#define RQ_ENET_LEN_BITS		14
26#define RQ_ENET_LEN_MASK		((1 << RQ_ENET_LEN_BITS) - 1)
27#define RQ_ENET_TYPE_BITS		2
28#define RQ_ENET_TYPE_MASK		((1 << RQ_ENET_TYPE_BITS) - 1)
29
30static inline void rq_enet_desc_enc(struct rq_enet_desc *desc,
31	u64 address, u8 type, u16 length)
32{
33	desc->address = cpu_to_le64(address);
34	desc->length_type = cpu_to_le16((length & RQ_ENET_LEN_MASK) |
35		((type & RQ_ENET_TYPE_MASK) << RQ_ENET_LEN_BITS));
36}
37
38static inline void rq_enet_desc_dec(struct rq_enet_desc *desc,
39	u64 *address, u8 *type, u16 *length)
40{
41	*address = le64_to_cpu(desc->address);
42	*length = le16_to_cpu(desc->length_type) & RQ_ENET_LEN_MASK;
43	*type = (u8)((le16_to_cpu(desc->length_type) >> RQ_ENET_LEN_BITS) &
44		RQ_ENET_TYPE_MASK);
45}
46
47#endif /* _RQ_ENET_DESC_H_ */