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/* 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 */
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