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This is a non-functional change with 2 goals (both for the case when CONFIG_NET_DSA_SJA1105_PTP is not enabled): - Reduce the size of the sja1105_private structure. - Make the PTP code more self-contained. Leaving priv->ptp_data.lock to be initialized in sja1105_main.c is not a leftover: it will be used in a future patch "net: dsa: sja1105: Restore PTP time after switch reset". Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0
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* Copyright (c) 2019, Vladimir Oltean <olteanv@gmail.com>
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*/
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#ifndef _SJA1105_PTP_H
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#define _SJA1105_PTP_H
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#if IS_ENABLED(CONFIG_NET_DSA_SJA1105_PTP)
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struct sja1105_ptp_data {
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struct ptp_clock_info caps;
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struct ptp_clock *clock;
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/* The cycle counter translates the PTP timestamps (based on
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* a free-running counter) into a software time domain.
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*/
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struct cyclecounter tstamp_cc;
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struct timecounter tstamp_tc;
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struct delayed_work refresh_work;
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/* Serializes all operations on the cycle counter */
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struct mutex lock;
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};
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int sja1105_ptp_clock_register(struct dsa_switch *ds);
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void sja1105_ptp_clock_unregister(struct dsa_switch *ds);
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int sja1105et_ptp_cmd(const struct dsa_switch *ds, const void *data);
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int sja1105pqrs_ptp_cmd(const struct dsa_switch *ds, const void *data);
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int sja1105_get_ts_info(struct dsa_switch *ds, int port,
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struct ethtool_ts_info *ts);
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void sja1105_ptp_txtstamp_skb(struct dsa_switch *ds, int slot,
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struct sk_buff *clone);
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int sja1105_ptp_reset(struct dsa_switch *ds);
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bool sja1105_port_rxtstamp(struct dsa_switch *ds, int port,
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struct sk_buff *skb, unsigned int type);
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bool sja1105_port_txtstamp(struct dsa_switch *ds, int port,
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struct sk_buff *skb, unsigned int type);
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int sja1105_hwtstamp_get(struct dsa_switch *ds, int port, struct ifreq *ifr);
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int sja1105_hwtstamp_set(struct dsa_switch *ds, int port, struct ifreq *ifr);
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#else
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/* Structures cannot be empty in C. Bah!
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* Keep the mutex as the only element, which is a bit more difficult to
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* refactor out of sja1105_main.c anyway.
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*/
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struct sja1105_ptp_data {
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struct mutex lock;
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};
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static inline int sja1105_ptp_clock_register(struct dsa_switch *ds)
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{
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return 0;
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}
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static inline void sja1105_ptp_clock_unregister(struct dsa_switch *ds) { }
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static inline void sja1105_ptp_txtstamp_skb(struct dsa_switch *ds, int slot,
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struct sk_buff *clone)
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{
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}
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static inline int sja1105_ptp_reset(struct dsa_switch *ds)
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{
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return 0;
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}
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#define sja1105et_ptp_cmd NULL
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#define sja1105pqrs_ptp_cmd NULL
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#define sja1105_get_ts_info NULL
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#define sja1105_port_rxtstamp NULL
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#define sja1105_port_txtstamp NULL
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#define sja1105_hwtstamp_get NULL
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#define sja1105_hwtstamp_set NULL
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#endif /* IS_ENABLED(CONFIG_NET_DSA_SJA1105_PTP) */
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#endif /* _SJA1105_PTP_H */
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