blob: 2a266b7e7b38ccb34395fd5da62cc67635c96c5c (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
.. SPDX-License-Identifier: GPL-2.0
=========================
netdevsim devlink support
=========================
This document describes the ``devlink`` features supported by the
``netdevsim`` device driver.
Parameters
==========
.. list-table:: Generic parameters implemented
* - Name
- Mode
* - ``max_macs``
- driverinit
The ``netdevsim`` driver also implements the following driver-specific
parameters.
.. list-table:: Driver-specific parameters implemented
:widths: 5 5 5 85
* - Name
- Type
- Mode
- Description
* - ``test1``
- Boolean
- driverinit
- Test parameter used to show how a driver-specific devlink parameter
can be implemented.
The ``netdevsim`` driver supports reloading via ``DEVLINK_CMD_RELOAD``
Regions
=======
The ``netdevsim`` driver exposes a ``dummy`` region as an example of how the
devlink-region interfaces work. A snapshot is taken whenever the
``take_snapshot`` debugfs file is written to.
Resources
=========
The ``netdevsim`` driver exposes resources to control the number of FIB
entries and FIB rule entries that the driver will allow.
.. code:: shell
$ devlink resource set netdevsim/netdevsim0 path /IPv4/fib size 96
$ devlink resource set netdevsim/netdevsim0 path /IPv4/fib-rules size 16
$ devlink resource set netdevsim/netdevsim0 path /IPv6/fib size 64
$ devlink resource set netdevsim/netdevsim0 path /IPv6/fib-rules size 16
$ devlink dev reload netdevsim/netdevsim0
Driver-specific Traps
=====================
.. list-table:: List of Driver-specific Traps Registered by ``netdevsim``
:widths: 5 5 90
* - Name
- Type
- Description
* - ``fid_miss``
- ``exception``
- When a packet enters the device it is classified to a filtering
indentifier (FID) based on the ingress port and VLAN. This trap is used
to trap packets for which a FID could not be found
|
