0 #ʾ#File not found. % qž7%/* 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 * */ #ifndef _NET_TIMESTAMPING_H #define _NET_TIMESTAMPING_H #include #include /* for SO_TIMESTAMPING */ /* * Possible type of hwtstamp provider. Mainly "precise" the default one * is for IEEE 1588 quality and "approx" is for NICs DMA point. */ enum hwtstamp_provider_qualifier { HWTSTAMP_PROVIDER_QUALIFIER_PRECISE, HWTSTAMP_PROVIDER_QUALIFIER_APPROX, HWTSTAMP_PROVIDER_QUALIFIER_CNT, }; /* SO_TIMESTAMPING flags */ enum { SOF_TIMESTAMPING_TX_HARDWARE = (1<<0), SOF_TIMESTAMPING_TX_SOFTWARE = (1<<1), SOF_TIMESTAMPING_RX_HARDWARE = (1<<2), SOF_TIMESTAMPING_RX_SOFTWARE = (1<<3), SOF_TIMESTAMPING_SOFTWARE = (1<<4), SOF_TIMESTAMPING_SYS_HARDWARE = (1<<5), SOF_TIMESTAMPING_RAW_HARDWARE = (1<<6), SOF_TIMESTAMPING_OPT_ID = (1<<7), SOF_TIMESTAMPING_TX_SCHED = (1<<8), SOF_TIMESTAMPING_TX_ACK = (1<<9), SOF_TIMESTAMPING_OPT_CMSG = (1<<10), SOF_TIMESTAMPING_OPT_TSONLY = (1<<11), SOF_TIMESTAMPING_OPT_STATS = (1<<12), SOF_TIMESTAMPING_OPT_PKTINFO = (1<<13), SOF_TIMESTAMPING_OPT_TX_SWHW = (1<<14), SOF_TIMESTAMPING_BIND_PHC = (1 << 15), SOF_TIMESTAMPING_OPT_ID_TCP = (1 << 16), SOF_TIMESTAMPING_OPT_RX_FILTER = (1 << 17), SOF_TIMESTAMPING_LAST = SOF_TIMESTAMPING_OPT_RX_FILTER, SOF_TIMESTAMPING_MASK = (SOF_TIMESTAMPING_LAST - 1) | SOF_TIMESTAMPING_LAST }; /* * 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 (SOF_TIMESTAMPING_TX_HARDWARE | \ SOF_TIMESTAMPING_TX_SOFTWARE | \ SOF_TIMESTAMPING_TX_SCHED | \ SOF_TIMESTAMPING_TX_ACK) /** * 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 { int flags; int bind_phc; }; /** * 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 { int flags; int tx_type; int rx_filter; }; /* possible values for hwtstamp_config->flags */ enum hwtstamp_flags { /* * With this flag, the user could get bond active interface's * PHC index. Note this PHC index is not stable as when there * is a failover, the bond active interface will be changed, so * will be the PHC index. */ HWTSTAMP_FLAG_BONDED_PHC_INDEX = (1<<0), #define HWTSTAMP_FLAG_BONDED_PHC_INDEX HWTSTAMP_FLAG_BONDED_PHC_INDEX HWTSTAMP_FLAG_LAST = HWTSTAMP_FLAG_BONDED_PHC_INDEX, HWTSTAMP_FLAG_MASK = (HWTSTAMP_FLAG_LAST - 1) | HWTSTAMP_FLAG_LAST }; /* possible values for hwtstamp_config->tx_type */ enum hwtstamp_tx_types { /* * No outgoing packet will need hardware time stamping; * should a packet arrive which asks for it, no hardware * time stamping will be done. */ HWTSTAMP_TX_OFF, /* * Enables hardware time stamping for outgoing packets; * the sender of the packet decides which are to be * time stamped by setting %SOF_TIMESTAMPING_TX_SOFTWARE * before sending the packet. */ HWTSTAMP_TX_ON, /* * Enables time stamping for outgoing packets just as * HWTSTAMP_TX_ON does, but also enables time stamp insertion * directly into Sync packets. In this case, transmitted Sync * packets will not receive