2021-07-20 16:20:39 +00:00
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/* Broadcom NetXtreme-C/E network driver.
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*
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* Copyright (c) 2021 Broadcom Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation.
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*/
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#ifndef BNXT_PTP_H
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#define BNXT_PTP_H
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#define BNXT_PTP_GRC_WIN 5
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#define BNXT_PTP_GRC_WIN_BASE 0x5000
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#define BNXT_MAX_PHC_DRIFT 31000000
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#define BNXT_LO_TIMER_MASK 0x0000ffffffffUL
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#define BNXT_HI_TIMER_MASK 0xffff00000000UL
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#define BNXT_PTP_QTS_TIMEOUT 1000
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#define BNXT_PTP_QTS_TX_ENABLES (PORT_TS_QUERY_REQ_ENABLES_PTP_SEQ_ID | \
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PORT_TS_QUERY_REQ_ENABLES_TS_REQ_TIMEOUT)
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struct bnxt_ptp_cfg {
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struct ptp_clock_info ptp_info;
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struct ptp_clock *ptp_clock;
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struct cyclecounter cc;
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struct timecounter tc;
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/* serialize timecounter access */
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spinlock_t ptp_lock;
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struct sk_buff *tx_skb;
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u64 current_time;
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u64 old_time;
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unsigned long next_period;
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2021-08-11 19:35:13 +00:00
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unsigned long next_overflow_check;
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/* 48-bit PHC overflows in 78 hours. Check overflow every 19 hours. */
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#define BNXT_PHC_OVERFLOW_PERIOD (19 * 3600 * HZ)
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2021-07-20 16:20:39 +00:00
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u16 tx_seqid;
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struct bnxt *bp;
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atomic_t tx_avail;
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#define BNXT_MAX_TX_TS 1
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u16 rxctl;
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#define BNXT_PTP_MSG_SYNC (1 << 0)
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#define BNXT_PTP_MSG_DELAY_REQ (1 << 1)
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#define BNXT_PTP_MSG_PDELAY_REQ (1 << 2)
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#define BNXT_PTP_MSG_PDELAY_RESP (1 << 3)
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#define BNXT_PTP_MSG_FOLLOW_UP (1 << 8)
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#define BNXT_PTP_MSG_DELAY_RESP (1 << 9)
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#define BNXT_PTP_MSG_PDELAY_RESP_FOLLOW_UP (1 << 10)
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#define BNXT_PTP_MSG_ANNOUNCE (1 << 11)
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#define BNXT_PTP_MSG_SIGNALING (1 << 12)
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#define BNXT_PTP_MSG_MANAGEMENT (1 << 13)
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#define BNXT_PTP_MSG_EVENTS (BNXT_PTP_MSG_SYNC | \
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BNXT_PTP_MSG_DELAY_REQ | \
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BNXT_PTP_MSG_PDELAY_REQ | \
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BNXT_PTP_MSG_PDELAY_RESP)
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u8 tx_tstamp_en:1;
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int rx_filter;
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u32 refclk_regs[2];
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u32 refclk_mapped_regs[2];
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};
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#if BITS_PER_LONG == 32
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#define BNXT_READ_TIME64(ptp, dst, src) \
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do { \
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spin_lock_bh(&(ptp)->ptp_lock); \
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(dst) = (src); \
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spin_unlock_bh(&(ptp)->ptp_lock); \
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} while (0)
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#else
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#define BNXT_READ_TIME64(ptp, dst, src) \
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((dst) = READ_ONCE(src))
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#endif
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int bnxt_ptp_parse(struct sk_buff *skb, u16 *seq_id);
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int bnxt_hwtstamp_set(struct net_device *dev, struct ifreq *ifr);
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int bnxt_hwtstamp_get(struct net_device *dev, struct ifreq *ifr);
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int bnxt_get_tx_ts_p5(struct bnxt *bp, struct sk_buff *skb);
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int bnxt_get_rx_ts_p5(struct bnxt *bp, u64 *ts, u32 pkt_ts);
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int bnxt_ptp_init(struct bnxt *bp);
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void bnxt_ptp_clear(struct bnxt *bp);
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#endif
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