drivers/net/ethernet/sfc/ptp.h

   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_change_mode(struct efx_nic *efx, bool enable_wanted,
  30                         unsigned int new_mode);
  31 int efx_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
  32 void efx_ptp_event(struct efx_nic *efx, efx_qword_t *ev);
  33 size_t efx_ptp_describe_stats(struct efx_nic *efx, u8 **strings);
  34 size_t efx_ptp_update_stats(struct efx_nic *efx, u64 *stats);
  35 void efx_time_sync_event(struct efx_channel *channel, efx_qword_t *ev);
  36 void __efx_rx_skb_attach_timestamp(struct efx_channel *channel,
  37                                    struct sk_buff *skb);
  38 static inline void efx_rx_skb_attach_timestamp(struct efx_channel *channel,
  39                                                struct sk_buff *skb)
  40 {
  41         if (channel->sync_events_state == SYNC_EVENTS_VALID)
  42                 __efx_rx_skb_attach_timestamp(channel, skb);
  43 }
  44 void efx_ptp_start_datapath(struct efx_nic *efx);
  45 void efx_ptp_stop_datapath(struct efx_nic *efx);
  46 bool efx_ptp_use_mac_tx_timestamps(struct efx_nic *efx);
  47 ktime_t efx_ptp_nic_to_kernel_time(struct efx_tx_queue *tx_queue);
  48
  49 #endif /* EFX_PTP_H */