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batman-adv: Drop documentation about debugfs files

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The debugfs files were marked as deprecated by commit 00caf6a2b3
("batman-adv: Mark debugfs functionality as deprecated"). The documentation
should not advertise its usage anymore and instead promote the generic
netlink family and a userspace tool to access it.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
This commit is contained in:
Sven Eckelmann 2019-03-03 18:02:55 +01:00 committed by Simon Wunderlich
parent 0d5f20c42b
commit 4c35e15a83
1 changed files with 9 additions and 20 deletions
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29
Documentation/networking/batman-adv.rst
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@ -74,23 +74,9 @@ All mesh wide settings can be found in batman's own interface folder::
bridge_loop_avoidance gw_sel_class network_coding
distributed_arp_table hop_penalty orig_interval
There is a special folder for debugging information::
$ ls /sys/kernel/debug/batman_adv/bat0/
bla_backbone_table log neighbors transtable_local
bla_claim_table mcast_flags originators
dat_cache nc socket
gateways nc_nodes transtable_global
Some of the files contain all sort of status information regarding the mesh
network. For example, you can view the table of originators (mesh
participants) with::
$ cat /sys/kernel/debug/batman_adv/bat0/originators
Other files allow to change batman's behaviour to better fit your requirements.
For instance, you can check the current originator interval (value in
milliseconds which determines how often batman sends its broadcast packets)::
Some files allow to change batman-adv's behaviour to better fit your
requirements. For instance, you can check the current originator interval (value
in milliseconds which determines how often batman sends its broadcast packets)::
$ cat /sys/class/net/bat0/mesh/orig_interval
1000
@ -103,6 +89,10 @@ In very mobile scenarios, you might want to adjust the originator interval to a
lower value. This will make the mesh more responsive to topology changes, but
will also increase the overhead.
Information about the current state can be accessed via the batadv generic
netlink family. batctl provides human readable version via its debug tables
subcommands.
Usage
=====
@ -147,10 +137,9 @@ batman-adv module. When building batman-adv as part of kernel, use "make
menuconfig" and enable the option ``B.A.T.M.A.N. debugging``
(``CONFIG_BATMAN_ADV_DEBUG=y``).
Those additional debug messages can be accessed using a special file in
debugfs::
Those additional debug messages can be accessed using the perf infrastructure::
$ cat /sys/kernel/debug/batman_adv/bat0/log
$ trace-cmd stream -e batadv:batadv_dbg
The additional debug output is by default disabled. It can be enabled during
run time. Following log_levels are defined: