xfrm: update the stats documentation

Add a couple of stats that aren't in the documentation file
and rework the top description to be a little more readable.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Shannon Nelson 2017-12-21 14:26:18 -08:00 committed by Steffen Klassert
parent 9cb0d21d01
commit 1a4bb1d14f

View File

@ -5,13 +5,15 @@ Masahide NAKAMURA <nakam@linux-ipv6.org>
Transformation Statistics
-------------------------
xfrm_proc is a statistics shown factor dropped by transformation
for developer.
It is a counter designed from current transformation source code
and defined like linux private MIB.
Inbound statistics
~~~~~~~~~~~~~~~~~~
The xfrm_proc code is a set of statistics showing numbers of packets
dropped by the transformation code and why. These counters are defined
as part of the linux private MIB. These counters can be viewed in
/proc/net/xfrm_stat.
Inbound errors
~~~~~~~~~~~~~~
XfrmInError:
All errors which is not matched others
XfrmInBufferError:
@ -46,6 +48,10 @@ XfrmInPolBlock:
Policy discards
XfrmInPolError:
Policy error
XfrmAcquireError:
State hasn't been fully acquired before use
XfrmFwdHdrError:
Forward routing of a packet is not allowed
Outbound errors
~~~~~~~~~~~~~~~
@ -72,3 +78,5 @@ XfrmOutPolDead:
Policy is dead
XfrmOutPolError:
Policy error
XfrmOutStateInvalid:
State is invalid, perhaps expired