1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /****************************************************************************
3 * Driver for Solarflare network controllers and boards
4 * Copyright 2005-2006 Fen Systems Ltd.
5 * Copyright 2006-2013 Solarflare Communications Inc.
6 * Copyright 2019-2020 Xilinx Inc.
7 */
8
9 #ifndef EFX_PTP_H
10 #define EFX_PTP_H
11
12 #include <linux/net_tstamp.h>
13 #include "net_driver.h"
14
15 struct kernel_ethtool_ts_info;
16 int efx_ptp_probe(struct efx_nic *efx, struct efx_channel *channel);
17 void efx_ptp_defer_probe_with_channel(struct efx_nic *efx);
18 struct efx_channel *efx_ptp_channel(struct efx_nic *efx);
19 void efx_ptp_update_channel(struct efx_nic *efx, struct efx_channel *channel);
20 void efx_ptp_remove(struct efx_nic *efx);
21 int efx_ptp_set_ts_config(struct efx_nic *efx,
22 struct kernel_hwtstamp_config *config,
23 struct netlink_ext_ack *extack);
24 int efx_ptp_get_ts_config(struct efx_nic *efx,
25 struct kernel_hwtstamp_config *config);
26 void efx_ptp_get_ts_info(struct efx_nic *efx,
27 struct kernel_ethtool_ts_info *ts_info);
28 bool efx_ptp_is_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
29 int efx_ptp_get_mode(struct efx_nic *efx);
30 int efx_ptp_change_mode(struct efx_nic *efx, bool enable_wanted,
31 unsigned int new_mode);
32 int efx_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
33 void efx_ptp_event(struct efx_nic *efx, efx_qword_t *ev);
34 size_t efx_ptp_describe_stats(struct efx_nic *efx, u8 *strings);
35 size_t efx_ptp_update_stats(struct efx_nic *efx, u64 *stats);
36 void efx_time_sync_event(struct efx_channel *channel, efx_qword_t *ev);
37 void __efx_rx_skb_attach_timestamp(struct efx_channel *channel,
38 struct sk_buff *skb);
efx_rx_skb_attach_timestamp(struct efx_channel * channel,struct sk_buff * skb)39 static inline void efx_rx_skb_attach_timestamp(struct efx_channel *channel,
40 struct sk_buff *skb)
41 {
42 if (channel->sync_events_state == SYNC_EVENTS_VALID)
43 __efx_rx_skb_attach_timestamp(channel, skb);
44 }
45 void efx_ptp_start_datapath(struct efx_nic *efx);
46 void efx_ptp_stop_datapath(struct efx_nic *efx);
47 bool efx_ptp_use_mac_tx_timestamps(struct efx_nic *efx);
48 ktime_t efx_ptp_nic_to_kernel_time(struct efx_tx_queue *tx_queue);
49
50 #endif /* EFX_PTP_H */
51