forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
139 lines
4.1 KiB
139 lines
4.1 KiB
/* 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 pps_pin { |
|
u8 event; |
|
u8 usage; |
|
u8 state; |
|
}; |
|
|
|
#define TSIO_PIN_VALID(pin) ((pin) < (BNXT_MAX_TSIO_PINS)) |
|
|
|
#define EVENT_DATA2_PPS_EVENT_TYPE(data2) \ |
|
((data2) & ASYNC_EVENT_CMPL_PPS_TIMESTAMP_EVENT_DATA2_EVENT_TYPE) |
|
|
|
#define EVENT_DATA2_PPS_PIN_NUM(data2) \ |
|
(((data2) & \ |
|
ASYNC_EVENT_CMPL_PPS_TIMESTAMP_EVENT_DATA2_PIN_NUMBER_MASK) >>\ |
|
ASYNC_EVENT_CMPL_PPS_TIMESTAMP_EVENT_DATA2_PIN_NUMBER_SFT) |
|
|
|
#define BNXT_DATA2_UPPER_MSK \ |
|
ASYNC_EVENT_CMPL_PPS_TIMESTAMP_EVENT_DATA2_PPS_TIMESTAMP_UPPER_MASK |
|
|
|
#define BNXT_DATA2_UPPER_SFT \ |
|
(32 - \ |
|
ASYNC_EVENT_CMPL_PPS_TIMESTAMP_EVENT_DATA2_PPS_TIMESTAMP_UPPER_SFT) |
|
|
|
#define BNXT_DATA1_LOWER_MSK \ |
|
ASYNC_EVENT_CMPL_PPS_TIMESTAMP_EVENT_DATA1_PPS_TIMESTAMP_LOWER_MASK |
|
|
|
#define BNXT_DATA1_LOWER_SFT \ |
|
ASYNC_EVENT_CMPL_PPS_TIMESTAMP_EVENT_DATA1_PPS_TIMESTAMP_LOWER_SFT |
|
|
|
#define EVENT_PPS_TS(data2, data1) \ |
|
(((u64)((data2) & BNXT_DATA2_UPPER_MSK) << BNXT_DATA2_UPPER_SFT) |\ |
|
(((data1) & BNXT_DATA1_LOWER_MSK) >> BNXT_DATA1_LOWER_SFT)) |
|
|
|
#define BNXT_PPS_PIN_DISABLE 0 |
|
#define BNXT_PPS_PIN_ENABLE 1 |
|
#define BNXT_PPS_PIN_NONE 0 |
|
#define BNXT_PPS_PIN_PPS_IN 1 |
|
#define BNXT_PPS_PIN_PPS_OUT 2 |
|
#define BNXT_PPS_PIN_SYNC_IN 3 |
|
#define BNXT_PPS_PIN_SYNC_OUT 4 |
|
|
|
#define BNXT_PPS_EVENT_INTERNAL 1 |
|
#define BNXT_PPS_EVENT_EXTERNAL 2 |
|
|
|
struct bnxt_pps { |
|
u8 num_pins; |
|
#define BNXT_MAX_TSIO_PINS 4 |
|
struct pps_pin pins[BNXT_MAX_TSIO_PINS]; |
|
}; |
|
|
|
struct bnxt_ptp_cfg { |
|
struct ptp_clock_info ptp_info; |
|
struct ptp_clock *ptp_clock; |
|
struct cyclecounter cc; |
|
struct timecounter tc; |
|
struct bnxt_pps pps_info; |
|
/* 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); |
|
void bnxt_ptp_pps_event(struct bnxt *bp, u32 data1, u32 data2); |
|
void bnxt_ptp_reapply_pps(struct bnxt *bp); |
|
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
|
|
|