mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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164 lines
4.8 KiB
C
164 lines
4.8 KiB
C
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/*
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* Marvell 88E6xxx Switch hardware timestamping support
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*
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* Copyright (c) 2008 Marvell Semiconductor
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*
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* Copyright (c) 2017 National Instruments
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* Erik Hons <erik.hons@ni.com>
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* Brandon Streiff <brandon.streiff@ni.com>
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* Dane Wagner <dane.wagner@ni.com>
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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; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef _MV88E6XXX_HWTSTAMP_H
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#define _MV88E6XXX_HWTSTAMP_H
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#include "chip.h"
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/* Global PTP registers */
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/* Offset 0x00: PTP EtherType */
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#define MV88E6XXX_PTP_ETHERTYPE 0x00
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/* Offset 0x01: Message Type Timestamp Enables */
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#define MV88E6XXX_PTP_MSGTYPE 0x01
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#define MV88E6XXX_PTP_MSGTYPE_SYNC 0x0001
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#define MV88E6XXX_PTP_MSGTYPE_DELAY_REQ 0x0002
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#define MV88E6XXX_PTP_MSGTYPE_PDLAY_REQ 0x0004
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#define MV88E6XXX_PTP_MSGTYPE_PDLAY_RES 0x0008
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#define MV88E6XXX_PTP_MSGTYPE_ALL_EVENT 0x000f
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/* Offset 0x02: Timestamp Arrival Capture Pointers */
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#define MV88E6XXX_PTP_TS_ARRIVAL_PTR 0x02
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/* Offset 0x08: PTP Interrupt Status */
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#define MV88E6XXX_PTP_IRQ_STATUS 0x08
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/* Per-Port PTP Registers */
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/* Offset 0x00: PTP Configuration 0 */
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#define MV88E6XXX_PORT_PTP_CFG0 0x00
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#define MV88E6XXX_PORT_PTP_CFG0_TSPEC_SHIFT 12
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#define MV88E6XXX_PORT_PTP_CFG0_TSPEC_MASK 0xf000
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#define MV88E6XXX_PORT_PTP_CFG0_TSPEC_1588 0x0000
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#define MV88E6XXX_PORT_PTP_CFG0_TSPEC_8021AS 0x1000
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#define MV88E6XXX_PORT_PTP_CFG0_DISABLE_TSPEC_MATCH 0x0800
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#define MV88E6XXX_PORT_PTP_CFG0_DISABLE_OVERWRITE 0x0002
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#define MV88E6XXX_PORT_PTP_CFG0_DISABLE_PTP 0x0001
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/* Offset 0x01: PTP Configuration 1 */
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#define MV88E6XXX_PORT_PTP_CFG1 0x01
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/* Offset 0x02: PTP Configuration 2 */
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#define MV88E6XXX_PORT_PTP_CFG2 0x02
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#define MV88E6XXX_PORT_PTP_CFG2_EMBED_ARRIVAL 0x1000
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#define MV88E6XXX_PORT_PTP_CFG2_DEP_IRQ_EN 0x0002
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#define MV88E6XXX_PORT_PTP_CFG2_ARR_IRQ_EN 0x0001
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/* Offset 0x03: PTP LED Configuration */
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#define MV88E6XXX_PORT_PTP_LED_CFG 0x03
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/* Offset 0x08: PTP Arrival 0 Status */
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#define MV88E6XXX_PORT_PTP_ARR0_STS 0x08
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/* Offset 0x09/0x0A: PTP Arrival 0 Time */
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#define MV88E6XXX_PORT_PTP_ARR0_TIME_LO 0x09
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#define MV88E6XXX_PORT_PTP_ARR0_TIME_HI 0x0a
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/* Offset 0x0B: PTP Arrival 0 Sequence ID */
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#define MV88E6XXX_PORT_PTP_ARR0_SEQID 0x0b
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/* Offset 0x0C: PTP Arrival 1 Status */
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#define MV88E6XXX_PORT_PTP_ARR1_STS 0x0c
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/* Offset 0x0D/0x0E: PTP Arrival 1 Time */
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#define MV88E6XXX_PORT_PTP_ARR1_TIME_LO 0x0d
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#define MV88E6XXX_PORT_PTP_ARR1_TIME_HI 0x0e
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/* Offset 0x0F: PTP Arrival 1 Sequence ID */
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#define MV88E6XXX_PORT_PTP_ARR1_SEQID 0x0f
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/* Offset 0x10: PTP Departure Status */
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#define MV88E6XXX_PORT_PTP_DEP_STS 0x10
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/* Offset 0x11/0x12: PTP Deperture Time */
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#define MV88E6XXX_PORT_PTP_DEP_TIME_LO 0x11
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#define MV88E6XXX_PORT_PTP_DEP_TIME_HI 0x12
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/* Offset 0x13: PTP Departure Sequence ID */
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#define MV88E6XXX_PORT_PTP_DEP_SEQID 0x13
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/* Status fields for arrival and depature timestamp status registers */
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#define MV88E6XXX_PTP_TS_STATUS_MASK 0x0006
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#define MV88E6XXX_PTP_TS_STATUS_NORMAL 0x0000
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#define MV88E6XXX_PTP_TS_STATUS_OVERWITTEN 0x0002
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#define MV88E6XXX_PTP_TS_STATUS_DISCARDED 0x0004
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#define MV88E6XXX_PTP_TS_VALID 0x0001
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#ifdef CONFIG_NET_DSA_MV88E6XXX_PTP
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int mv88e6xxx_port_hwtstamp_set(struct dsa_switch *ds, int port,
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struct ifreq *ifr);
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int mv88e6xxx_port_hwtstamp_get(struct dsa_switch *ds, int port,
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struct ifreq *ifr);
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bool mv88e6xxx_port_rxtstamp(struct dsa_switch *ds, int port,
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struct sk_buff *clone, unsigned int type);
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bool mv88e6xxx_port_txtstamp(struct dsa_switch *ds, int port,
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struct sk_buff *clone, unsigned int type);
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int mv88e6xxx_get_ts_info(struct dsa_switch *ds, int port,
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struct ethtool_ts_info *info);
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int mv88e6xxx_hwtstamp_setup(struct mv88e6xxx_chip *chip);
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void mv88e6xxx_hwtstamp_free(struct mv88e6xxx_chip *chip);
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#else /* !CONFIG_NET_DSA_MV88E6XXX_PTP */
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static inline int mv88e6xxx_port_hwtstamp_set(struct dsa_switch *ds,
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int port, struct ifreq *ifr)
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{
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return -EOPNOTSUPP;
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}
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static inline int mv88e6xxx_port_hwtstamp_get(struct dsa_switch *ds,
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int port, struct ifreq *ifr)
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{
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return -EOPNOTSUPP;
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}
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static inline bool mv88e6xxx_port_rxtstamp(struct dsa_switch *ds, int port,
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struct sk_buff *clone,
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unsigned int type)
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{
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return false;
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}
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static inline bool mv88e6xxx_port_txtstamp(struct dsa_switch *ds, int port,
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struct sk_buff *clone,
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unsigned int type)
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{
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return false;
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}
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static inline int mv88e6xxx_get_ts_info(struct dsa_switch *ds, int port,
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struct ethtool_ts_info *info)
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{
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return -EOPNOTSUPP;
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}
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static inline int mv88e6xxx_hwtstamp_setup(struct mv88e6xxx_chip *chip)
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{
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return 0;
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}
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static inline void mv88e6xxx_hwtstamp_free(struct mv88e6xxx_chip *chip)
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{
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}
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#endif /* CONFIG_NET_DSA_MV88E6XXX_PTP */
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#endif /* _MV88E6XXX_HWTSTAMP_H */
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