ptp.c File Reference

#include <linux/ip.h>
#include <linux/udp.h>
#include <linux/time.h>
#include <linux/ktime.h>
#include <linux/module.h>
#include <linux/net_tstamp.h>
#include <linux/pps_kernel.h>
#include <linux/ptp_clock_kernel.h>
#include "net_driver.h"
#include "efx.h"
#include "mcdi.h"
#include "mcdi_pcol.h"
#include "io.h"
#include "regs.h"
#include "nic.h"

Go to the source code of this file.

Data Structures
struct	efx_ptp_match
struct	efx_ptp_event_rx
struct	efx_ptp_timeset
struct	efx_ptp_data

Macros
#define	MAX_EVENT_FRAGS   3
#define	MAX_SYNCHRONISE_WAIT_MS   2
#define	SYNCHRONISE_PERIOD_NS   250000
#define	SYNCHRONISATION_GRANULARITY_NS   200
#define	MIN_SYNCHRONISATION_NS   120
#define	MAX_SYNCHRONISATION_NS   1000
#define	MAX_RECEIVE_EVENTS   8
#define	AVERAGE_LENGTH   16
#define	PKT_EVENT_LIFETIME_MS   10
#define	PTP_DPORT_OFFSET   22
#define	PTP_V1_VERSION_LENGTH   2
#define	PTP_V1_VERSION_OFFSET   28
#define	PTP_V1_UUID_LENGTH   6
#define	PTP_V1_UUID_OFFSET   50
#define	PTP_V1_SEQUENCE_LENGTH   2
#define	PTP_V1_SEQUENCE_OFFSET   58
#define	PTP_V1_MIN_LENGTH   64
#define	PTP_V2_VERSION_LENGTH   1
#define	PTP_V2_VERSION_OFFSET   29
#define	PTP_V2_MC_UUID_LENGTH   6
#define	PTP_V2_MC_UUID_OFFSET   50
#define	PTP_V2_SEQUENCE_LENGTH   2
#define	PTP_V2_SEQUENCE_OFFSET   58
#define	PTP_V2_MIN_LENGTH   63
#define	PTP_MIN_LENGTH   63
#define	PTP_ADDRESS   0xe0000181 /* 224.0.1.129 */
#define	PTP_EVENT_PORT   319
#define	PTP_GENERAL_PORT   320
#define	PTP_VERSION_V1   1
#define	PTP_VERSION_V2   2
#define	PTP_VERSION_V2_MASK   0x0f
#define	MC_NANOSECOND_BITS   30
#define	MC_NANOSECOND_MASK   ((1 << MC_NANOSECOND_BITS) - 1)
#define	MC_SECOND_MASK   ((1 << (32 - MC_NANOSECOND_BITS)) - 1)
#define	MAX_PPB   1000000
#define	MAX_PPB_BITS   20
#define	PPB_EXTRA_BITS   2
#define	PPB_SCALE_WORD
#define	PTP_SYNC_ATTEMPTS   4

Enumerations
enum	ptp_packet_state { PTP_PACKET_STATE_UNMATCHED = 0, PTP_PACKET_STATE_MATCHED, PTP_PACKET_STATE_TIMED_OUT, PTP_PACKET_STATE_MATCH_UNWANTED }

Functions
bool	efx_ptp_is_ptp_tx (struct efx_nic *efx, struct sk_buff *skb)
int	efx_ptp_tx (struct efx_nic *efx, struct sk_buff *skb)
int	efx_ptp_get_ts_info (struct net_device *net_dev, struct ethtool_ts_info *ts_info)
int	efx_ptp_ioctl (struct efx_nic *efx, struct ifreq *ifr, int cmd)
void	efx_ptp_event (struct efx_nic *efx, efx_qword_t *ev)
void	efx_ptp_probe (struct efx_nic *efx)

Macro Definition Documentation

#define AVERAGE_LENGTH   16

Definition at line 74 of file ptp.c.

#define MAX_EVENT_FRAGS   3

Definition at line 53 of file ptp.c.

#define MAX_PPB   1000000

Definition at line 147 of file ptp.c.

#define MAX_PPB_BITS   20

Definition at line 150 of file ptp.c.

#define MAX_RECEIVE_EVENTS   8

Definition at line 71 of file ptp.c.

#define MAX_SYNCHRONISATION_NS   1000

Definition at line 68 of file ptp.c.

#define MAX_SYNCHRONISE_WAIT_MS   2

Definition at line 56 of file ptp.c.

#define MC_NANOSECOND_BITS   30

Definition at line 142 of file ptp.c.

#define MC_NANOSECOND_MASK   ((1 << MC_NANOSECOND_BITS) - 1)

Definition at line 143 of file ptp.c.

#define MC_SECOND_MASK   ((1 << (32 - MC_NANOSECOND_BITS)) - 1)

Definition at line 144 of file ptp.c.

#define MIN_SYNCHRONISATION_NS   120

Definition at line 65 of file ptp.c.

#define PKT_EVENT_LIFETIME_MS   10

Definition at line 77 of file ptp.c.

#define PPB_EXTRA_BITS   2

Definition at line 156 of file ptp.c.

#define PPB_SCALE_WORD

Value:

((1LL << (PPB_EXTRA_BITS + MC_CMD_PTP_IN_ADJUST_BITS +\
            MAX_PPB_BITS)) / 1000000000LL)

Definition at line 159 of file ptp.c.

#define PTP_ADDRESS   0xe0000181 /* 224.0.1.129 */

Definition at line 120 of file ptp.c.

#define PTP_DPORT_OFFSET   22

Definition at line 83 of file ptp.c.

#define PTP_EVENT_PORT   319

Definition at line 121 of file ptp.c.

#define PTP_GENERAL_PORT   320

Definition at line 122 of file ptp.c.

#define PTP_MIN_LENGTH   63

Definition at line 118 of file ptp.c.

#define PTP_SYNC_ATTEMPTS   4

Definition at line 162 of file ptp.c.

#define PTP_V1_MIN_LENGTH   64

Definition at line 97 of file ptp.c.

#define PTP_V1_SEQUENCE_LENGTH   2

Definition at line 91 of file ptp.c.

#define PTP_V1_SEQUENCE_OFFSET   58

Definition at line 92 of file ptp.c.

#define PTP_V1_UUID_LENGTH   6

Definition at line 88 of file ptp.c.

#define PTP_V1_UUID_OFFSET   50

Definition at line 89 of file ptp.c.

#define PTP_V1_VERSION_LENGTH   2

Definition at line 85 of file ptp.c.

#define PTP_V1_VERSION_OFFSET   28

Definition at line 86 of file ptp.c.

#define PTP_V2_MC_UUID_LENGTH   6

Definition at line 107 of file ptp.c.

#define PTP_V2_MC_UUID_OFFSET   50

Definition at line 108 of file ptp.c.

#define PTP_V2_MIN_LENGTH   63

Definition at line 116 of file ptp.c.

#define PTP_V2_SEQUENCE_LENGTH   2

Definition at line 110 of file ptp.c.

#define PTP_V2_SEQUENCE_OFFSET   58

Definition at line 111 of file ptp.c.

#define PTP_V2_VERSION_LENGTH   1

Definition at line 99 of file ptp.c.

#define PTP_V2_VERSION_OFFSET   29

Definition at line 100 of file ptp.c.

#define PTP_VERSION_V1   1

Definition at line 127 of file ptp.c.

#define PTP_VERSION_V2   2

Definition at line 129 of file ptp.c.

#define PTP_VERSION_V2_MASK   0x0f

Definition at line 130 of file ptp.c.

#define SYNCHRONISATION_GRANULARITY_NS   200

Definition at line 62 of file ptp.c.

#define SYNCHRONISE_PERIOD_NS   250000

Definition at line 59 of file ptp.c.

Enumeration Type Documentation

enum ptp_packet_state

Enumerator:

PTP_PACKET_STATE_UNMATCHED
PTP_PACKET_STATE_MATCHED
PTP_PACKET_STATE_TIMED_OUT
PTP_PACKET_STATE_MATCH_UNWANTED

Definition at line 132 of file ptp.c.

Function Documentation

void efx_ptp_event	(	struct efx_nic *	efx,
		efx_qword_t *	ev
	)

Definition at line 1309 of file ptp.c.

int efx_ptp_get_ts_info	(	struct net_device *	net_dev,
		struct ethtool_ts_info *	ts_info
	)

Definition at line 1199 of file ptp.c.

int efx_ptp_ioctl	(	struct efx_nic *	efx,
		struct ifreq *	ifr,
		int	cmd
	)

Definition at line 1222 of file ptp.c.

bool efx_ptp_is_ptp_tx	(	struct efx_nic *	efx,
		struct sk_buff *	skb
	)

Definition at line 994 of file ptp.c.

void efx_ptp_probe

(

struct efx_nic *

efx

)

Definition at line 1473 of file ptp.c.

int efx_ptp_tx	(	struct efx_nic *	efx,
		struct sk_buff *	skb
	)

Definition at line 1082 of file ptp.c.