2111375b85
In prevision to add new UAPI for hwtstamp we will be limited to the struct ethtool_ts_info that is currently passed in fixed binary format through the ETHTOOL_GET_TS_INFO ethtool ioctl. It would be good if new kernel code already started operating on an extensible kernel variant of that structure, similar in concept to struct kernel_hwtstamp_config vs struct hwtstamp_config. Since struct ethtool_ts_info is in include/uapi/linux/ethtool.h, here we introduce the kernel-only structure in include/linux/ethtool.h. The manual copy is then made in the function called by ETHTOOL_GET_TS_INFO. Acked-by: Shannon Nelson <shannon.nelson@amd.com> Acked-by: Alexandra Winter <wintera@linux.ibm.com> Signed-off-by: Kory Maincent <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20240709-feature_ptp_netnext-v17-6-b5317f50df2a@bootlin.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Microchip KSZ PTP Implementation
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*
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* Copyright (C) 2020 ARRI Lighting
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* Copyright (C) 2022 Microchip Technology Inc.
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*/
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#ifndef _NET_DSA_DRIVERS_KSZ_PTP_H
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#define _NET_DSA_DRIVERS_KSZ_PTP_H
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#if IS_ENABLED(CONFIG_NET_DSA_MICROCHIP_KSZ_PTP)
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#include <linux/ptp_clock_kernel.h>
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#define KSZ_PTP_N_GPIO 2
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enum ksz_ptp_tou_mode {
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KSZ_PTP_TOU_IDLE,
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KSZ_PTP_TOU_PEROUT,
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};
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struct ksz_ptp_data {
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struct ptp_clock_info caps;
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struct ptp_clock *clock;
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struct ptp_pin_desc pin_config[KSZ_PTP_N_GPIO];
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/* Serializes all operations on the PTP hardware clock */
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struct mutex lock;
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/* lock for accessing the clock_time */
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spinlock_t clock_lock;
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struct timespec64 clock_time;
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enum ksz_ptp_tou_mode tou_mode;
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struct timespec64 perout_target_time_first; /* start of first pulse */
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struct timespec64 perout_period;
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};
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int ksz_ptp_clock_register(struct dsa_switch *ds);
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void ksz_ptp_clock_unregister(struct dsa_switch *ds);
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int ksz_get_ts_info(struct dsa_switch *ds, int port,
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struct kernel_ethtool_ts_info *ts);
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int ksz_hwtstamp_get(struct dsa_switch *ds, int port, struct ifreq *ifr);
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int ksz_hwtstamp_set(struct dsa_switch *ds, int port, struct ifreq *ifr);
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void ksz_port_txtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb);
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void ksz_port_deferred_xmit(struct kthread_work *work);
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bool ksz_port_rxtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb,
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unsigned int type);
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int ksz_ptp_irq_setup(struct dsa_switch *ds, u8 p);
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void ksz_ptp_irq_free(struct dsa_switch *ds, u8 p);
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#else
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struct ksz_ptp_data {
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/* Serializes all operations on the PTP hardware clock */
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struct mutex lock;
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};
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static inline int ksz_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 ksz_ptp_clock_unregister(struct dsa_switch *ds) { }
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static inline int ksz_ptp_irq_setup(struct dsa_switch *ds, u8 p)
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{
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return 0;
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}
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static inline void ksz_ptp_irq_free(struct dsa_switch *ds, u8 p) {}
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#define ksz_get_ts_info NULL
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#define ksz_hwtstamp_get NULL
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#define ksz_hwtstamp_set NULL
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#define ksz_port_rxtstamp NULL
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#define ksz_port_txtstamp NULL
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#define ksz_port_deferred_xmit NULL
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#endif /* End of CONFIG_NET_DSA_MICROCHIP_KSZ_PTP */
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#endif
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