81 lines
2.7 KiB
C
81 lines
2.7 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2013, Intel Corporation. */
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#ifndef _IAVF_PTP_H_
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#define _IAVF_PTP_H_
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#if IS_ENABLED(CONFIG_PTP_1588_CLOCK)
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#include <linux/clocksource.h>
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#include <linux/net_tstamp.h>
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#include <linux/ptp_clock_kernel.h>
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#endif /* CONFIG_PTP_1588_CLOCK */
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struct iavf_adapter;
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/* bit indicating whether a 40bit timestamp is valid */
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#define IAVF_PTP_40B_TSTAMP_VALID BIT(0)
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/* structure used to queue PTP commands for processing */
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struct iavf_ptp_aq_cmd {
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struct list_head list;
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enum virtchnl_ops v_opcode;
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u16 msglen;
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u8 msg[];
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};
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/* fields used for PTP support */
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struct iavf_ptp {
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wait_queue_head_t phc_time_waitqueue;
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struct virtchnl_ptp_caps hw_caps;
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struct list_head aq_cmds;
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/* Lock protecting access to the AQ command list */
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spinlock_t aq_cmd_lock;
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struct hwtstamp_config hwtstamp_config;
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u64 cached_phc_time;
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unsigned long cached_phc_updated;
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u64 tx_hwtstamp_skipped;
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u64 tx_hwtstamp_timeouts;
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struct sk_buff *tx_skb; /* protected by __IAVF_TX_TSTAMP_IN_PROGRESS */
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unsigned long tx_start; /* protected by __IAVF_TX_TSTAMP_IN_PROGRESS */
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u8 __iomem *phc_addr; /* PHC register mapping */
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bool initialized;
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bool phc_time_ready;
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#if IS_ENABLED(CONFIG_PTP_1588_CLOCK)
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struct ptp_clock_info info;
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struct ptp_clock *clock;
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#endif
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};
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void iavf_virtchnl_send_ptp_cmd(struct iavf_adapter *adapter);
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#if IS_ENABLED(CONFIG_PTP_1588_CLOCK)
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void iavf_ptp_init(struct iavf_adapter *adapter);
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void iavf_ptp_release(struct iavf_adapter *adapter);
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void iavf_ptp_process_caps(struct iavf_adapter *adapter);
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long iavf_ptp_do_aux_work(struct ptp_clock_info *ptp);
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bool iavf_ptp_cap_supported(struct iavf_adapter *adapter, u32 cap);
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u64 iavf_ptp_extend_32b_timestamp(u64 cached_phc_time, u32 in_tstamp);
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u64 iavf_ptp_extend_40b_timestamp(u64 cached_phc_time, u64 in_tstamp);
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int iavf_ptp_get_ts_config(struct iavf_adapter *adapter, struct ifreq *ifr);
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int iavf_ptp_set_ts_config(struct iavf_adapter *adapter, struct ifreq *ifr);
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#else
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static inline void iavf_ptp_init(struct iavf_adapter *adapter) {}
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static inline void iavf_ptp_release(struct iavf_adapter *adapter) {}
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static inline void iavf_ptp_process_caps(struct iavf_adapter *adapter) {}
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static inline bool iavf_ptp_cap_supported(struct iavf_adapter *adapter, u32 cap) { return false; }
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static inline u64 iavf_ptp_extend_32b_timestamp(u64 cached_phc_time, u32 in_tstamp) { return 0; }
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static inline u64 iavf_ptp_extend_40b_timestamp(u64 cached_phc_time, u64 in_tstamp) { return 0; }
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static inline int iavf_ptp_get_ts_config(struct iavf_adapter *adapter, struct ifreq *ifr)
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{
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return -EOPNOTSUPP;
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}
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static inline int iavf_ptp_set_ts_config(struct iavf_adapter *adapter, struct ifreq *ifr)
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{
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return -EOPNOTSUPP;
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}
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#endif
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#endif /* _IAVF_PTP_H_ */
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