xref: /OK3568_Linux_fs/kernel/Documentation/ABI/testing/configfs-stp-policy-p_sys-t (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunWhat:		/config/stp-policy/<device>:p_sys-t.<policy>/<node>/uuid
2*4882a593SmuzhiyunDate:		June 2018
3*4882a593SmuzhiyunKernelVersion:	4.19
4*4882a593SmuzhiyunDescription:
5*4882a593Smuzhiyun		UUID source identifier string, RW.
6*4882a593Smuzhiyun		Default value is randomly generated at the mkdir <node> time.
7*4882a593Smuzhiyun		Data coming from trace sources that use this <node> will be
8*4882a593Smuzhiyun		tagged with this UUID in the MIPI SyS-T packet stream, to
9*4882a593Smuzhiyun		allow the decoder to discern between different sources
10*4882a593Smuzhiyun		within the same master/channel range, and identify the
11*4882a593Smuzhiyun		higher level decoders that may be needed for each source.
12*4882a593Smuzhiyun
13*4882a593SmuzhiyunWhat:		/config/stp-policy/<device>:p_sys-t.<policy>/<node>/do_len
14*4882a593SmuzhiyunDate:		June 2018
15*4882a593SmuzhiyunKernelVersion:	4.19
16*4882a593SmuzhiyunDescription:
17*4882a593Smuzhiyun		Include payload length in the MIPI SyS-T header, boolean.
18*4882a593Smuzhiyun		If enabled, the SyS-T protocol encoder will include payload
19*4882a593Smuzhiyun		length in each packet's metadata. This is normally redundant
20*4882a593Smuzhiyun		if the underlying transport protocol supports marking message
21*4882a593Smuzhiyun		boundaries (which STP does), so this is off by default.
22*4882a593Smuzhiyun
23*4882a593SmuzhiyunWhat:		/config/stp-policy/<device>:p_sys-t.<policy>/<node>/ts_interval
24*4882a593SmuzhiyunDate:		June 2018
25*4882a593SmuzhiyunKernelVersion:	4.19
26*4882a593SmuzhiyunDescription:
27*4882a593Smuzhiyun		Time interval in milliseconds. Include a timestamp in the
28*4882a593Smuzhiyun		MIPI SyS-T packet metadata, if this many milliseconds have
29*4882a593Smuzhiyun		passed since the previous packet from this source. Zero is
30*4882a593Smuzhiyun		the default and stands for "never send the timestamp".
31*4882a593Smuzhiyun
32*4882a593SmuzhiyunWhat:		/config/stp-policy/<device>:p_sys-t.<policy>/<node>/clocksync_interval
33*4882a593SmuzhiyunDate:		June 2018
34*4882a593SmuzhiyunKernelVersion:	4.19
35*4882a593SmuzhiyunDescription:
36*4882a593Smuzhiyun		Time interval in milliseconds. Send a CLOCKSYNC packet if
37*4882a593Smuzhiyun		this many milliseconds have passed since the previous
38*4882a593Smuzhiyun		CLOCKSYNC packet from this source. Zero is the default and
39*4882a593Smuzhiyun		stands for "never send the CLOCKSYNC". It makes sense to
40*4882a593Smuzhiyun		use this option with sources that generate constant and/or
41*4882a593Smuzhiyun		periodic data, like stm_heartbeat.
42