/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * Userspace API for hardware time stamping of network packets * * Copyright (C) 2008,2009 Intel Corporation * Author: Patrick Ohly <[email protected]> * */ #ifndef _NET_TIMESTAMPING_H #define _NET_TIMESTAMPING_H #include <linux/types.h> #include <linux/socket.h> /* for SO_TIMESTAMPING */ /* SO_TIMESTAMPING flags */ enum { … }; /* * SO_TIMESTAMPING flags are either for recording a packet timestamp or for * reporting the timestamp to user space. * Recording flags can be set both via socket options and control messages. */ #define SOF_TIMESTAMPING_TX_RECORD_MASK … /** * struct so_timestamping - SO_TIMESTAMPING parameter * * @flags: SO_TIMESTAMPING flags * @bind_phc: Index of PTP virtual clock bound to sock. This is available * if flag SOF_TIMESTAMPING_BIND_PHC is set. */ struct so_timestamping { … }; /** * struct hwtstamp_config - %SIOCGHWTSTAMP and %SIOCSHWTSTAMP parameter * * @flags: one of HWTSTAMP_FLAG_* * @tx_type: one of HWTSTAMP_TX_* * @rx_filter: one of HWTSTAMP_FILTER_* * * %SIOCGHWTSTAMP and %SIOCSHWTSTAMP expect a &struct ifreq with a * ifr_data pointer to this structure. For %SIOCSHWTSTAMP, if the * driver or hardware does not support the requested @rx_filter value, * the driver may use a more general filter mode. In this case * @rx_filter will indicate the actual mode on return. */ struct hwtstamp_config { … }; /* possible values for hwtstamp_config->flags */ enum hwtstamp_flags { … }; /* possible values for hwtstamp_config->tx_type */ enum hwtstamp_tx_types { … }; /* possible values for hwtstamp_config->rx_filter */ enum hwtstamp_rx_filters { … }; /* SCM_TIMESTAMPING_PKTINFO control message */ struct scm_ts_pktinfo { … }; /* * SO_TXTIME gets a struct sock_txtime with flags being an integer bit * field comprised of these values. */ enum txtime_flags { … }; struct sock_txtime { … }; #endif /* _NET_TIMESTAMPING_H */
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