diff options
Diffstat (limited to 'include/linux/net_tstamp.h')
-rw-r--r-- | include/linux/net_tstamp.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/include/linux/net_tstamp.h b/include/linux/net_tstamp.h new file mode 100644 index 000000000000..a3b8546354ac --- /dev/null +++ b/include/linux/net_tstamp.h | |||
@@ -0,0 +1,104 @@ | |||
1 | /* | ||
2 | * Userspace API for hardware time stamping of network packets | ||
3 | * | ||
4 | * Copyright (C) 2008,2009 Intel Corporation | ||
5 | * Author: Patrick Ohly <patrick.ohly@intel.com> | ||
6 | * | ||
7 | */ | ||
8 | |||
9 | #ifndef _NET_TIMESTAMPING_H | ||
10 | #define _NET_TIMESTAMPING_H | ||
11 | |||
12 | #include <linux/socket.h> /* for SO_TIMESTAMPING */ | ||
13 | |||
14 | /* SO_TIMESTAMPING gets an integer bit field comprised of these values */ | ||
15 | enum { | ||
16 | SOF_TIMESTAMPING_TX_HARDWARE = (1<<0), | ||
17 | SOF_TIMESTAMPING_TX_SOFTWARE = (1<<1), | ||
18 | SOF_TIMESTAMPING_RX_HARDWARE = (1<<2), | ||
19 | SOF_TIMESTAMPING_RX_SOFTWARE = (1<<3), | ||
20 | SOF_TIMESTAMPING_SOFTWARE = (1<<4), | ||
21 | SOF_TIMESTAMPING_SYS_HARDWARE = (1<<5), | ||
22 | SOF_TIMESTAMPING_RAW_HARDWARE = (1<<6), | ||
23 | SOF_TIMESTAMPING_MASK = | ||
24 | (SOF_TIMESTAMPING_RAW_HARDWARE - 1) | | ||
25 | SOF_TIMESTAMPING_RAW_HARDWARE | ||
26 | }; | ||
27 | |||
28 | /** | ||
29 | * struct hwtstamp_config - %SIOCSHWTSTAMP parameter | ||
30 | * | ||
31 | * @flags: no flags defined right now, must be zero | ||
32 | * @tx_type: one of HWTSTAMP_TX_* | ||
33 | * @rx_type: one of one of HWTSTAMP_FILTER_* | ||
34 | * | ||
35 | * %SIOCSHWTSTAMP expects a &struct ifreq with a ifr_data pointer to | ||
36 | * this structure. dev_ifsioc() in the kernel takes care of the | ||
37 | * translation between 32 bit userspace and 64 bit kernel. The | ||
38 | * structure is intentionally chosen so that it has the same layout on | ||
39 | * 32 and 64 bit systems, don't break this! | ||
40 | */ | ||
41 | struct hwtstamp_config { | ||
42 | int flags; | ||
43 | int tx_type; | ||
44 | int rx_filter; | ||
45 | }; | ||
46 | |||
47 | /* possible values for hwtstamp_config->tx_type */ | ||
48 | enum { | ||
49 | /* | ||
50 | * No outgoing packet will need hardware time stamping; | ||
51 | * should a packet arrive which asks for it, no hardware | ||
52 | * time stamping will be done. | ||
53 | */ | ||
54 | HWTSTAMP_TX_OFF, | ||
55 | |||
56 | /* | ||
57 | * Enables hardware time stamping for outgoing packets; | ||
58 | * the sender of the packet decides which are to be | ||
59 | * time stamped by setting %SOF_TIMESTAMPING_TX_SOFTWARE | ||
60 | * before sending the packet. | ||
61 | */ | ||
62 | HWTSTAMP_TX_ON, | ||
63 | }; | ||
64 | |||
65 | /* possible values for hwtstamp_config->rx_filter */ | ||
66 | enum { | ||
67 | /* time stamp no incoming packet at all */ | ||
68 | HWTSTAMP_FILTER_NONE, | ||
69 | |||
70 | /* time stamp any incoming packet */ | ||
71 | HWTSTAMP_FILTER_ALL, | ||
72 | |||
73 | /* return value: time stamp all packets requested plus some others */ | ||
74 | HWTSTAMP_FILTER_SOME, | ||
75 | |||
76 | /* PTP v1, UDP, any kind of event packet */ | ||
77 | HWTSTAMP_FILTER_PTP_V1_L4_EVENT, | ||
78 | /* PTP v1, UDP, Sync packet */ | ||
79 | HWTSTAMP_FILTER_PTP_V1_L4_SYNC, | ||
80 | /* PTP v1, UDP, Delay_req packet */ | ||
81 | HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ, | ||
82 | /* PTP v2, UDP, any kind of event packet */ | ||
83 | HWTSTAMP_FILTER_PTP_V2_L4_EVENT, | ||
84 | /* PTP v2, UDP, Sync packet */ | ||
85 | HWTSTAMP_FILTER_PTP_V2_L4_SYNC, | ||
86 | /* PTP v2, UDP, Delay_req packet */ | ||
87 | HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ, | ||
88 | |||
89 | /* 802.AS1, Ethernet, any kind of event packet */ | ||
90 | HWTSTAMP_FILTER_PTP_V2_L2_EVENT, | ||
91 | /* 802.AS1, Ethernet, Sync packet */ | ||
92 | HWTSTAMP_FILTER_PTP_V2_L2_SYNC, | ||
93 | /* 802.AS1, Ethernet, Delay_req packet */ | ||
94 | HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ, | ||
95 | |||
96 | /* PTP v2/802.AS1, any layer, any kind of event packet */ | ||
97 | HWTSTAMP_FILTER_PTP_V2_EVENT, | ||
98 | /* PTP v2/802.AS1, any layer, Sync packet */ | ||
99 | HWTSTAMP_FILTER_PTP_V2_SYNC, | ||
100 | /* PTP v2/802.AS1, any layer, Delay_req packet */ | ||
101 | HWTSTAMP_FILTER_PTP_V2_DELAY_REQ, | ||
102 | }; | ||
103 | |||
104 | #endif /* _NET_TIMESTAMPING_H */ | ||