1 /* Broadcom NetXtreme-C/E network driver.
3 * Copyright (c) 2021 Broadcom Inc.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation.
13 #define BNXT_PTP_GRC_WIN 5
14 #define BNXT_PTP_GRC_WIN_BASE 0x5000
16 #define BNXT_MAX_PHC_DRIFT 31000000
17 #define BNXT_LO_TIMER_MASK 0x0000ffffffffUL
18 #define BNXT_HI_TIMER_MASK 0xffff00000000UL
20 #define BNXT_PTP_QTS_TIMEOUT 1000
21 #define BNXT_PTP_QTS_TX_ENABLES (PORT_TS_QUERY_REQ_ENABLES_PTP_SEQ_ID | \
22 PORT_TS_QUERY_REQ_ENABLES_TS_REQ_TIMEOUT)
25 struct ptp_clock_info ptp_info;
26 struct ptp_clock *ptp_clock;
27 struct cyclecounter cc;
28 struct timecounter tc;
29 /* serialize timecounter access */
31 struct sk_buff *tx_skb;
34 unsigned long next_period;
38 #define BNXT_MAX_TX_TS 1
40 #define BNXT_PTP_MSG_SYNC (1 << 0)
41 #define BNXT_PTP_MSG_DELAY_REQ (1 << 1)
42 #define BNXT_PTP_MSG_PDELAY_REQ (1 << 2)
43 #define BNXT_PTP_MSG_PDELAY_RESP (1 << 3)
44 #define BNXT_PTP_MSG_FOLLOW_UP (1 << 8)
45 #define BNXT_PTP_MSG_DELAY_RESP (1 << 9)
46 #define BNXT_PTP_MSG_PDELAY_RESP_FOLLOW_UP (1 << 10)
47 #define BNXT_PTP_MSG_ANNOUNCE (1 << 11)
48 #define BNXT_PTP_MSG_SIGNALING (1 << 12)
49 #define BNXT_PTP_MSG_MANAGEMENT (1 << 13)
50 #define BNXT_PTP_MSG_EVENTS (BNXT_PTP_MSG_SYNC | \
51 BNXT_PTP_MSG_DELAY_REQ | \
52 BNXT_PTP_MSG_PDELAY_REQ | \
53 BNXT_PTP_MSG_PDELAY_RESP)
58 u32 refclk_mapped_regs[2];
61 #if BITS_PER_LONG == 32
62 #define BNXT_READ_TIME64(ptp, dst, src) \
64 spin_lock_bh(&(ptp)->ptp_lock); \
66 spin_unlock_bh(&(ptp)->ptp_lock); \
69 #define BNXT_READ_TIME64(ptp, dst, src) \
70 ((dst) = READ_ONCE(src))
73 int bnxt_ptp_parse(struct sk_buff *skb, u16 *seq_id);
74 int bnxt_hwtstamp_set(struct net_device *dev, struct ifreq *ifr);
75 int bnxt_hwtstamp_get(struct net_device *dev, struct ifreq *ifr);
76 int bnxt_get_tx_ts_p5(struct bnxt *bp, struct sk_buff *skb);
77 int bnxt_get_rx_ts_p5(struct bnxt *bp, u64 *ts, u32 pkt_ts);
78 int bnxt_ptp_init(struct bnxt *bp);
79 void bnxt_ptp_clear(struct bnxt *bp);