/* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (c) 2024 Pengutronix, Oleksij Rempel <kernel@pengutronix.de> */ #ifndef _NET_IEEE8021Q_H #define _NET_IEEE8021Q_H #include <linux/errno.h> /** * enum ieee8021q_traffic_type - 802.1Q traffic type priority values (802.1Q-2022) * * @IEEE8021Q_TT_BK: Background * @IEEE8021Q_TT_BE: Best Effort (default). According to 802.1Q-2022, BE is 0 * but has higher priority than BK which is 1. * @IEEE8021Q_TT_EE: Excellent Effort * @IEEE8021Q_TT_CA: Critical Applications * @IEEE8021Q_TT_VI: Video, < 100 ms latency and jitter * @IEEE8021Q_TT_VO: Voice, < 10 ms latency and jitter * @IEEE8021Q_TT_IC: Internetwork Control * @IEEE8021Q_TT_NC: Network Control */ enum ieee8021q_traffic_type { IEEE8021Q_TT_BK = 0, IEEE8021Q_TT_BE = 1, IEEE8021Q_TT_EE = 2, IEEE8021Q_TT_CA = 3, IEEE8021Q_TT_VI = 4, IEEE8021Q_TT_VO = 5, IEEE8021Q_TT_IC = 6, IEEE8021Q_TT_NC = 7, /* private: */ IEEE8021Q_TT_MAX, }; #define SIMPLE_IETF_DSCP_TO_IEEE8021Q_TT(dscp) ((dscp >> 3) & 0x7) #if IS_ENABLED(CONFIG_NET_IEEE8021Q_HELPERS) int ietf_dscp_to_ieee8021q_tt(u8 dscp); int ieee8021q_tt_to_tc(enum ieee8021q_traffic_type tt, unsigned int num_queues); #else static inline int ietf_dscp_to_ieee8021q_tt(u8 dscp) { return -EOPNOTSUPP; } static inline int ieee8021q_tt_to_tc(enum ieee8021q_traffic_type tt, unsigned int num_queues) { return -EOPNOTSUPP; } #endif #endif /* _NET_IEEE8021Q_H */