| /* Broadcom NetXtreme-C/E network driver. |
| * |
| * Copyright (c) 2021 Broadcom Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation. |
| */ |
| |
| #ifndef BNXT_PTP_H |
| #define BNXT_PTP_H |
| |
| #define BNXT_PTP_GRC_WIN 6 |
| #define BNXT_PTP_GRC_WIN_BASE 0x6000 |
| |
| #define BNXT_MAX_PHC_DRIFT 31000000 |
| #define BNXT_LO_TIMER_MASK 0x0000ffffffffUL |
| #define BNXT_HI_TIMER_MASK 0xffff00000000UL |
| |
| #define BNXT_PTP_QTS_TIMEOUT 1000 |
| #define BNXT_PTP_QTS_TX_ENABLES (PORT_TS_QUERY_REQ_ENABLES_PTP_SEQ_ID | \ |
| PORT_TS_QUERY_REQ_ENABLES_TS_REQ_TIMEOUT | \ |
| PORT_TS_QUERY_REQ_ENABLES_PTP_HDR_OFFSET) |
| |
| struct bnxt_ptp_cfg { |
| struct ptp_clock_info ptp_info; |
| struct ptp_clock *ptp_clock; |
| struct cyclecounter cc; |
| struct timecounter tc; |
| /* serialize timecounter access */ |
| spinlock_t ptp_lock; |
| struct sk_buff *tx_skb; |
| u64 current_time; |
| u64 old_time; |
| unsigned long next_period; |
| unsigned long next_overflow_check; |
| /* 48-bit PHC overflows in 78 hours. Check overflow every 19 hours. */ |
| #define BNXT_PHC_OVERFLOW_PERIOD (19 * 3600 * HZ) |
| |
| u16 tx_seqid; |
| u16 tx_hdr_off; |
| struct bnxt *bp; |
| atomic_t tx_avail; |
| #define BNXT_MAX_TX_TS 1 |
| u16 rxctl; |
| #define BNXT_PTP_MSG_SYNC (1 << 0) |
| #define BNXT_PTP_MSG_DELAY_REQ (1 << 1) |
| #define BNXT_PTP_MSG_PDELAY_REQ (1 << 2) |
| #define BNXT_PTP_MSG_PDELAY_RESP (1 << 3) |
| #define BNXT_PTP_MSG_FOLLOW_UP (1 << 8) |
| #define BNXT_PTP_MSG_DELAY_RESP (1 << 9) |
| #define BNXT_PTP_MSG_PDELAY_RESP_FOLLOW_UP (1 << 10) |
| #define BNXT_PTP_MSG_ANNOUNCE (1 << 11) |
| #define BNXT_PTP_MSG_SIGNALING (1 << 12) |
| #define BNXT_PTP_MSG_MANAGEMENT (1 << 13) |
| #define BNXT_PTP_MSG_EVENTS (BNXT_PTP_MSG_SYNC | \ |
| BNXT_PTP_MSG_DELAY_REQ | \ |
| BNXT_PTP_MSG_PDELAY_REQ | \ |
| BNXT_PTP_MSG_PDELAY_RESP) |
| u8 tx_tstamp_en:1; |
| int rx_filter; |
| |
| u32 refclk_regs[2]; |
| u32 refclk_mapped_regs[2]; |
| }; |
| |
| #if BITS_PER_LONG == 32 |
| #define BNXT_READ_TIME64(ptp, dst, src) \ |
| do { \ |
| spin_lock_bh(&(ptp)->ptp_lock); \ |
| (dst) = (src); \ |
| spin_unlock_bh(&(ptp)->ptp_lock); \ |
| } while (0) |
| #else |
| #define BNXT_READ_TIME64(ptp, dst, src) \ |
| ((dst) = READ_ONCE(src)) |
| #endif |
| |
| int bnxt_ptp_parse(struct sk_buff *skb, u16 *seq_id, u16 *hdr_off); |
| int bnxt_hwtstamp_set(struct net_device *dev, struct ifreq *ifr); |
| int bnxt_hwtstamp_get(struct net_device *dev, struct ifreq *ifr); |
| int bnxt_get_tx_ts_p5(struct bnxt *bp, struct sk_buff *skb); |
| int bnxt_get_rx_ts_p5(struct bnxt *bp, u64 *ts, u32 pkt_ts); |
| int bnxt_ptp_init(struct bnxt *bp); |
| void bnxt_ptp_clear(struct bnxt *bp); |
| #endif |
