105 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2/* Copyright (c) 2019, Vladimir Oltean <olteanv@gmail.com>3 */4#ifndef _SJA1105_TAS_H5#define _SJA1105_TAS_H6 7#include <net/pkt_sched.h>8 9#define SJA1105_TAS_MAX_DELTA BIT(18)10 11struct sja1105_private;12 13#if IS_ENABLED(CONFIG_NET_DSA_SJA1105_TAS)14 15enum sja1105_tas_state {16 SJA1105_TAS_STATE_DISABLED,17 SJA1105_TAS_STATE_ENABLED_NOT_RUNNING,18 SJA1105_TAS_STATE_RUNNING,19};20 21enum sja1105_ptp_op {22 SJA1105_PTP_NONE,23 SJA1105_PTP_CLOCKSTEP,24 SJA1105_PTP_ADJUSTFREQ,25};26 27struct sja1105_gate_entry {28 struct list_head list;29 struct sja1105_rule *rule;30 s64 interval;31 u8 gate_state;32};33 34struct sja1105_gating_config {35 u64 cycle_time;36 s64 base_time;37 int num_entries;38 struct list_head entries;39};40 41struct sja1105_tas_data {42 struct tc_taprio_qopt_offload *offload[SJA1105_MAX_NUM_PORTS];43 struct sja1105_gating_config gating_cfg;44 enum sja1105_tas_state state;45 enum sja1105_ptp_op last_op;46 struct work_struct tas_work;47 s64 earliest_base_time;48 s64 oper_base_time;49 u64 max_cycle_time;50 bool enabled;51};52 53int sja1105_setup_tc_taprio(struct dsa_switch *ds, int port,54 struct tc_taprio_qopt_offload *admin);55 56void sja1105_tas_setup(struct dsa_switch *ds);57 58void sja1105_tas_teardown(struct dsa_switch *ds);59 60void sja1105_tas_clockstep(struct dsa_switch *ds);61 62void sja1105_tas_adjfreq(struct dsa_switch *ds);63 64bool sja1105_gating_check_conflicts(struct sja1105_private *priv, int port,65 struct netlink_ext_ack *extack);66 67int sja1105_init_scheduling(struct sja1105_private *priv);68 69#else70 71/* C doesn't allow empty structures, bah! */72struct sja1105_tas_data {73 u8 dummy;74};75 76static inline int sja1105_setup_tc_taprio(struct dsa_switch *ds, int port,77 struct tc_taprio_qopt_offload *admin)78{79 return -EOPNOTSUPP;80}81 82static inline void sja1105_tas_setup(struct dsa_switch *ds) { }83 84static inline void sja1105_tas_teardown(struct dsa_switch *ds) { }85 86static inline void sja1105_tas_clockstep(struct dsa_switch *ds) { }87 88static inline void sja1105_tas_adjfreq(struct dsa_switch *ds) { }89 90static inline bool91sja1105_gating_check_conflicts(struct dsa_switch *ds, int port,92 struct netlink_ext_ack *extack)93{94 return true;95}96 97static inline int sja1105_init_scheduling(struct sja1105_private *priv)98{99 return 0;100}101 102#endif /* IS_ENABLED(CONFIG_NET_DSA_SJA1105_TAS) */103 104#endif /* _SJA1105_TAS_H */105