1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2024 Pengutronix, Oleksij Rem 2 /* Copyright (c) 2024 Pengutronix, Oleksij Rempel <kernel@pengutronix.de> */
3 3
4 #ifndef _NET_IEEE8021Q_H 4 #ifndef _NET_IEEE8021Q_H
5 #define _NET_IEEE8021Q_H 5 #define _NET_IEEE8021Q_H
6 6
7 #include <linux/errno.h> 7 #include <linux/errno.h>
8 8
9 /** 9 /**
10 * enum ieee8021q_traffic_type - 802.1Q traffi 10 * enum ieee8021q_traffic_type - 802.1Q traffic type priority values (802.1Q-2022)
11 * 11 *
12 * @IEEE8021Q_TT_BK: Background 12 * @IEEE8021Q_TT_BK: Background
13 * @IEEE8021Q_TT_BE: Best Effort (default). Ac 13 * @IEEE8021Q_TT_BE: Best Effort (default). According to 802.1Q-2022, BE is 0
14 * but has higher priority than BK which is 1. 14 * but has higher priority than BK which is 1.
15 * @IEEE8021Q_TT_EE: Excellent Effort 15 * @IEEE8021Q_TT_EE: Excellent Effort
16 * @IEEE8021Q_TT_CA: Critical Applications 16 * @IEEE8021Q_TT_CA: Critical Applications
17 * @IEEE8021Q_TT_VI: Video, < 100 ms latency a 17 * @IEEE8021Q_TT_VI: Video, < 100 ms latency and jitter
18 * @IEEE8021Q_TT_VO: Voice, < 10 ms latency an 18 * @IEEE8021Q_TT_VO: Voice, < 10 ms latency and jitter
19 * @IEEE8021Q_TT_IC: Internetwork Control 19 * @IEEE8021Q_TT_IC: Internetwork Control
20 * @IEEE8021Q_TT_NC: Network Control 20 * @IEEE8021Q_TT_NC: Network Control
21 */ 21 */
22 enum ieee8021q_traffic_type { 22 enum ieee8021q_traffic_type {
23 IEEE8021Q_TT_BK = 0, 23 IEEE8021Q_TT_BK = 0,
24 IEEE8021Q_TT_BE = 1, 24 IEEE8021Q_TT_BE = 1,
25 IEEE8021Q_TT_EE = 2, 25 IEEE8021Q_TT_EE = 2,
26 IEEE8021Q_TT_CA = 3, 26 IEEE8021Q_TT_CA = 3,
27 IEEE8021Q_TT_VI = 4, 27 IEEE8021Q_TT_VI = 4,
28 IEEE8021Q_TT_VO = 5, 28 IEEE8021Q_TT_VO = 5,
29 IEEE8021Q_TT_IC = 6, 29 IEEE8021Q_TT_IC = 6,
30 IEEE8021Q_TT_NC = 7, 30 IEEE8021Q_TT_NC = 7,
31 31
32 /* private: */ 32 /* private: */
33 IEEE8021Q_TT_MAX, 33 IEEE8021Q_TT_MAX,
34 }; 34 };
35 35
36 #define SIMPLE_IETF_DSCP_TO_IEEE8021Q_TT(dscp) 36 #define SIMPLE_IETF_DSCP_TO_IEEE8021Q_TT(dscp) ((dscp >> 3) & 0x7)
37 37
38 #if IS_ENABLED(CONFIG_NET_IEEE8021Q_HELPERS) 38 #if IS_ENABLED(CONFIG_NET_IEEE8021Q_HELPERS)
39 39
40 int ietf_dscp_to_ieee8021q_tt(u8 dscp); 40 int ietf_dscp_to_ieee8021q_tt(u8 dscp);
41 int ieee8021q_tt_to_tc(enum ieee8021q_traffic_ 41 int ieee8021q_tt_to_tc(enum ieee8021q_traffic_type tt, unsigned int num_queues);
42 42
43 #else 43 #else
44 44
45 static inline int ietf_dscp_to_ieee8021q_tt(u8 45 static inline int ietf_dscp_to_ieee8021q_tt(u8 dscp)
46 { 46 {
47 return -EOPNOTSUPP; 47 return -EOPNOTSUPP;
48 } 48 }
49 49
50 static inline int ieee8021q_tt_to_tc(enum ieee 50 static inline int ieee8021q_tt_to_tc(enum ieee8021q_traffic_type tt,
51 unsigned 51 unsigned int num_queues)
52 { 52 {
53 return -EOPNOTSUPP; 53 return -EOPNOTSUPP;
54 } 54 }
55 55
56 #endif 56 #endif
57 #endif /* _NET_IEEE8021Q_H */ 57 #endif /* _NET_IEEE8021Q_H */
58 58
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