mirror of https://gitee.com/openkylin/linux.git
docs: wimax: convert to ReST and add to admin-guide
Manually convert wimax documentation to ReST and add theit to the Kernel doc body, inside the admin-guide. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab
Jonathan Corbet
parent
9c970ab54c
commit
ff497db295
|
|
@ -108,6 +108,7 @@ configure specific aspects of kernel behavior to your liking.
|
|||
pnp
|
||||
rtc
|
||||
svga
|
||||
wimax/index
|
||||
video-output
|
||||
|
||||
.. only:: subproject and html
|
||||
|
|
|
|||
|
|
@ -1,18 +1,23 @@
|
|||
.. include:: <isonum.txt>
|
||||
|
||||
Driver for the Intel Wireless Wimax Connection 2400m
|
||||
====================================================
|
||||
Driver for the Intel Wireless Wimax Connection 2400m
|
||||
====================================================
|
||||
|
||||
(C) 2008 Intel Corporation < linux-wimax@intel.com >
|
||||
:Copyright: |copy| 2008 Intel Corporation < linux-wimax@intel.com >
|
||||
|
||||
This provides a driver for the Intel Wireless WiMAX Connection 2400m
|
||||
and a basic Linux kernel WiMAX stack.
|
||||
|
||||
1. Requirements
|
||||
===============
|
||||
|
||||
* Linux installation with Linux kernel 2.6.22 or newer (if building
|
||||
from a separate tree)
|
||||
* Intel i2400m Echo Peak or Baxter Peak; this includes the Intel
|
||||
Wireless WiMAX/WiFi Link 5x50 series.
|
||||
* build tools:
|
||||
|
||||
+ Linux kernel development package for the target kernel; to
|
||||
build against your currently running kernel, you need to have
|
||||
the kernel development package corresponding to the running
|
||||
|
|
@ -22,8 +27,10 @@
|
|||
+ GNU C Compiler, make
|
||||
|
||||
2. Compilation and installation
|
||||
===============================
|
||||
|
||||
2.1. Compilation of the drivers included in the kernel
|
||||
------------------------------------------------------
|
||||
|
||||
Configure the kernel; to enable the WiMAX drivers select Drivers >
|
||||
Networking Drivers > WiMAX device support. Enable all of them as
|
||||
|
|
@ -36,37 +43,39 @@
|
|||
Compile and install your kernel as usual.
|
||||
|
||||
2.2. Compilation of the drivers distributed as an standalone module
|
||||
-------------------------------------------------------------------
|
||||
|
||||
To compile
|
||||
To compile::
|
||||
|
||||
$ cd source/directory
|
||||
$ make
|
||||
$ cd source/directory
|
||||
$ make
|
||||
|
||||
Once built you can load and unload using the provided load.sh script;
|
||||
load.sh will load the modules, load.sh u will unload them.
|
||||
|
||||
To install in the default kernel directories (and enable auto loading
|
||||
when the device is plugged):
|
||||
when the device is plugged)::
|
||||
|
||||
$ make install
|
||||
$ depmod -a
|
||||
$ make install
|
||||
$ depmod -a
|
||||
|
||||
If your kernel development files are located in a non standard
|
||||
directory or if you want to build for a kernel that is not the
|
||||
currently running one, set KDIR to the right location:
|
||||
currently running one, set KDIR to the right location::
|
||||
|
||||
$ make KDIR=/path/to/kernel/dev/tree
|
||||
$ make KDIR=/path/to/kernel/dev/tree
|
||||
|
||||
For more information, please contact linux-wimax@intel.com.
|
||||
|
||||
3. Installing the firmware
|
||||
--------------------------
|
||||
|
||||
The firmware can be obtained from http://linuxwimax.org or might have
|
||||
been supplied with your hardware.
|
||||
|
||||
It has to be installed in the target system:
|
||||
*
|
||||
$ cp FIRMWAREFILE.sbcf /lib/firmware/i2400m-fw-BUSTYPE-1.3.sbcf
|
||||
It has to be installed in the target system::
|
||||
|
||||
$ cp FIRMWAREFILE.sbcf /lib/firmware/i2400m-fw-BUSTYPE-1.3.sbcf
|
||||
|
||||
* NOTE: if your firmware came in an .rpm or .deb file, just install
|
||||
it as normal, with the rpm (rpm -i FIRMWARE.rpm) or dpkg
|
||||
|
|
@ -76,6 +85,7 @@ $ cp FIRMWAREFILE.sbcf /lib/firmware/i2400m-fw-BUSTYPE-1.3.sbcf
|
|||
with other types.
|
||||
|
||||
4. Design
|
||||
=========
|
||||
|
||||
This package contains two major parts: a WiMAX kernel stack and a
|
||||
driver for the Intel i2400m.
|
||||
|
|
@ -102,16 +112,17 @@ $ cp FIRMWAREFILE.sbcf /lib/firmware/i2400m-fw-BUSTYPE-1.3.sbcf
|
|||
API calls should be replaced with the target OS's.
|
||||
|
||||
5. Usage
|
||||
========
|
||||
|
||||
To load the driver, follow the instructions in the install section;
|
||||
once the driver is loaded, plug in the device (unless it is permanently
|
||||
plugged in). The driver will enumerate the device, upload the firmware
|
||||
and output messages in the kernel log (dmesg, /var/log/messages or
|
||||
/var/log/kern.log) such as:
|
||||
/var/log/kern.log) such as::
|
||||
|
||||
...
|
||||
i2400m_usb 5-4:1.0: firmware interface version 8.0.0
|
||||
i2400m_usb 5-4:1.0: WiMAX interface wmx0 (00:1d:e1:01:94:2c) ready
|
||||
...
|
||||
i2400m_usb 5-4:1.0: firmware interface version 8.0.0
|
||||
i2400m_usb 5-4:1.0: WiMAX interface wmx0 (00:1d:e1:01:94:2c) ready
|
||||
|
||||
At this point the device is ready to work.
|
||||
|
||||
|
|
@ -120,38 +131,42 @@ i2400m_usb 5-4:1.0: WiMAX interface wmx0 (00:1d:e1:01:94:2c) ready
|
|||
on how to scan, connect and disconnect.
|
||||
|
||||
5.1. Module parameters
|
||||
----------------------
|
||||
|
||||
Module parameters can be set at kernel or module load time or by
|
||||
echoing values:
|
||||
echoing values::
|
||||
|
||||
$ echo VALUE > /sys/module/MODULENAME/parameters/PARAMETERNAME
|
||||
$ echo VALUE > /sys/module/MODULENAME/parameters/PARAMETERNAME
|
||||
|
||||
To make changes permanent, for example, for the i2400m module, you can
|
||||
also create a file named /etc/modprobe.d/i2400m containing:
|
||||
also create a file named /etc/modprobe.d/i2400m containing::
|
||||
|
||||
options i2400m idle_mode_disabled=1
|
||||
options i2400m idle_mode_disabled=1
|
||||
|
||||
To find which parameters are supported by a module, run:
|
||||
To find which parameters are supported by a module, run::
|
||||
|
||||
$ modinfo path/to/module.ko
|
||||
$ modinfo path/to/module.ko
|
||||
|
||||
During kernel bootup (if the driver is linked in the kernel), specify
|
||||
the following to the kernel command line:
|
||||
the following to the kernel command line::
|
||||
|
||||
i2400m.PARAMETER=VALUE
|
||||
i2400m.PARAMETER=VALUE
|
||||
|
||||
5.1.1. i2400m: idle_mode_disabled
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
The i2400m module supports a parameter to disable idle mode. This
|
||||
parameter, once set, will take effect only when the device is
|
||||
reinitialized by the driver (eg: following a reset or a reconnect).
|
||||
|
||||
5.2. Debug operations: debugfs entries
|
||||
--------------------------------------
|
||||
|
||||
The driver will register debugfs entries that allow the user to tweak
|
||||
debug settings. There are three main container directories where
|
||||
entries are placed, which correspond to the three blocks a i2400m WiMAX
|
||||
driver has:
|
||||
|
||||
* /sys/kernel/debug/wimax:DEVNAME/ for the generic WiMAX stack
|
||||
controls
|
||||
* /sys/kernel/debug/wimax:DEVNAME/i2400m for the i2400m generic
|
||||
|
|
@ -163,52 +178,55 @@ i2400m.PARAMETER=VALUE
|
|||
/sys/kernel/debug, those paths will change.
|
||||
|
||||
5.2.1. Increasing debug output
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
The files named *dl_* indicate knobs for controlling the debug output
|
||||
of different submodules:
|
||||
*
|
||||
# find /sys/kernel/debug/wimax\:wmx0 -name \*dl_\*
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_tx
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_rx
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_notif
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_fw
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_usb
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_tx
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_rx
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_rfkill
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_netdev
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_fw
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_debugfs
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_driver
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_control
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_stack
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_op_rfkill
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_op_reset
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_op_msg
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_id_table
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_debugfs
|
||||
of different submodules::
|
||||
|
||||
# find /sys/kernel/debug/wimax\:wmx0 -name \*dl_\*
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_tx
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_rx
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_notif
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_fw
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m-usb/dl_usb
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_tx
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_rx
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_rfkill
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_netdev
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_fw
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_debugfs
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_driver
|
||||
/sys/kernel/debug/wimax:wmx0/i2400m/dl_control
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_stack
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_op_rfkill
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_op_reset
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_op_msg
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_id_table
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_debugfs
|
||||
|
||||
By reading the file you can obtain the current value of said debug
|
||||
level; by writing to it, you can set it.
|
||||
|
||||
To increase the debug level of, for example, the i2400m's generic TX
|
||||
engine, just write:
|
||||
engine, just write::
|
||||
|
||||
$ echo 3 > /sys/kernel/debug/wimax:wmx0/i2400m/dl_tx
|
||||
$ echo 3 > /sys/kernel/debug/wimax:wmx0/i2400m/dl_tx
|
||||
|
||||
Increasing numbers yield increasing debug information; for details of
|
||||
what is printed and the available levels, check the source. The code
|
||||
uses 0 for disabled and increasing values until 8.
|
||||
|
||||
5.2.2. RX and TX statistics
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
The i2400m/rx_stats and i2400m/tx_stats provide statistics about the
|
||||
data reception/delivery from the device:
|
||||
data reception/delivery from the device::
|
||||
|
||||
$ cat /sys/kernel/debug/wimax:wmx0/i2400m/rx_stats
|
||||
45 1 3 34 3104 48 480
|
||||
$ cat /sys/kernel/debug/wimax:wmx0/i2400m/rx_stats
|
||||
45 1 3 34 3104 48 480
|
||||
|
||||
The numbers reported are:
|
||||
|
||||
The numbers reported are
|
||||
* packets/RX-buffer: total, min, max
|
||||
* RX-buffers: total RX buffers received, accumulated RX buffer size
|
||||
in bytes, min size received, max size received
|
||||
|
|
@ -216,9 +234,9 @@ $ cat /sys/kernel/debug/wimax:wmx0/i2400m/rx_stats
|
|||
Thus, to find the average buffer size received, divide accumulated
|
||||
RX-buffer / total RX-buffers.
|
||||
|
||||
To clear the statistics back to 0, write anything to the rx_stats file:
|
||||
To clear the statistics back to 0, write anything to the rx_stats file::
|
||||
|
||||
$ echo 1 > /sys/kernel/debug/wimax:wmx0/i2400m_rx_stats
|
||||
$ echo 1 > /sys/kernel/debug/wimax:wmx0/i2400m_rx_stats
|
||||
|
||||
Likewise for TX.
|
||||
|
||||
|
|
@ -227,14 +245,16 @@ $ echo 1 > /sys/kernel/debug/wimax:wmx0/i2400m_rx_stats
|
|||
to the host. See drivers/net/wimax/i2400m/tx.c.
|
||||
|
||||
5.2.3. Tracing messages received from user space
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
To echo messages received from user space into the trace pipe that the
|
||||
i2400m driver creates, set the debug file i2400m/trace_msg_from_user to
|
||||
1:
|
||||
*
|
||||
$ echo 1 > /sys/kernel/debug/wimax:wmx0/i2400m/trace_msg_from_user
|
||||
1::
|
||||
|
||||
$ echo 1 > /sys/kernel/debug/wimax:wmx0/i2400m/trace_msg_from_user
|
||||
|
||||
5.2.4. Performing a device reset
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
By writing a 0, a 1 or a 2 to the file
|
||||
/sys/kernel/debug/wimax:wmx0/reset, the driver performs a warm (without
|
||||
|
|
@ -242,18 +262,21 @@ $ echo 1 > /sys/kernel/debug/wimax:wmx0/i2400m/trace_msg_from_user
|
|||
(bus specific) reset on the device.
|
||||
|
||||
5.2.5. Asking the device to enter power saving mode
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
By writing any value to the /sys/kernel/debug/wimax:wmx0 file, the
|
||||
device will attempt to enter power saving mode.
|
||||
|
||||
6. Troubleshooting
|
||||
==================
|
||||
|
||||
6.1. Driver complains about 'i2400m-fw-usb-1.2.sbcf: request failed'
|
||||
6.1. Driver complains about ``i2400m-fw-usb-1.2.sbcf: request failed``
|
||||
----------------------------------------------------------------------
|
||||
|
||||
If upon connecting the device, the following is output in the kernel
|
||||
log:
|
||||
log::
|
||||
|
||||
i2400m_usb 5-4:1.0: fw i2400m-fw-usb-1.3.sbcf: request failed: -2
|
||||
i2400m_usb 5-4:1.0: fw i2400m-fw-usb-1.3.sbcf: request failed: -2
|
||||
|
||||
This means that the driver cannot locate the firmware file named
|
||||
/lib/firmware/i2400m-fw-usb-1.2.sbcf. Check that the file is present in
|
||||
|
|
@ -0,0 +1,19 @@
|
|||
.. SPDX-License-Identifier: GPL-2.0
|
||||
|
||||
===============
|
||||
WiMAX subsystem
|
||||
===============
|
||||
|
||||
.. toctree::
|
||||
:maxdepth: 2
|
||||
|
||||
wimax
|
||||
|
||||
i2400m
|
||||
|
||||
.. only:: subproject and html
|
||||
|
||||
Indices
|
||||
=======
|
||||
|
||||
* :ref:`genindex`
|
||||
|
|
@ -1,12 +1,16 @@
|
|||
.. include:: <isonum.txt>
|
||||
|
||||
Linux kernel WiMAX stack
|
||||
========================
|
||||
Linux kernel WiMAX stack
|
||||
========================
|
||||
|
||||
(C) 2008 Intel Corporation < linux-wimax@intel.com >
|
||||
:Copyright: |copy| 2008 Intel Corporation < linux-wimax@intel.com >
|
||||
|
||||
This provides a basic Linux kernel WiMAX stack to provide a common
|
||||
control API for WiMAX devices, usable from kernel and user space.
|
||||
|
||||
1. Design
|
||||
=========
|
||||
|
||||
The WiMAX stack is designed to provide for common WiMAX control
|
||||
services to current and future WiMAX devices from any vendor.
|
||||
|
|
@ -31,6 +35,7 @@
|
|||
include/linux/wimax.h.
|
||||
|
||||
2. Usage
|
||||
========
|
||||
|
||||
For usage in a driver (registration, API, etc) please refer to the
|
||||
instructions in the header file include/linux/wimax.h.
|
||||
|
|
@ -40,6 +45,7 @@
|
|||
control.
|
||||
|
||||
2.1. Obtaining debug information: debugfs entries
|
||||
-------------------------------------------------
|
||||
|
||||
The WiMAX stack is compiled, by default, with debug messages that can
|
||||
be used to diagnose issues. By default, said messages are disabled.
|
||||
|
|
@ -52,20 +58,22 @@
|
|||
create more subentries below it.
|
||||
|
||||
2.1.1. Increasing debug output
|
||||
------------------------------
|
||||
|
||||
The files named *dl_* indicate knobs for controlling the debug output
|
||||
of different submodules of the WiMAX stack:
|
||||
*
|
||||
# find /sys/kernel/debug/wimax\:wmx0 -name \*dl_\*
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_stack
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_op_rfkill
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_op_reset
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_op_msg
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_id_table
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_debugfs
|
||||
/sys/kernel/debug/wimax:wmx0/.... # other driver specific files
|
||||
of different submodules of the WiMAX stack::
|
||||
|
||||
NOTE: Of course, if debugfs is mounted in a directory other than
|
||||
# find /sys/kernel/debug/wimax\:wmx0 -name \*dl_\*
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_stack
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_op_rfkill
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_op_reset
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_op_msg
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_id_table
|
||||
/sys/kernel/debug/wimax:wmx0/wimax_dl_debugfs
|
||||
/sys/kernel/debug/wimax:wmx0/.... # other driver specific files
|
||||
|
||||
NOTE:
|
||||
Of course, if debugfs is mounted in a directory other than
|
||||
/sys/kernel/debug, those paths will change.
|
||||
|
||||
By reading the file you can obtain the current value of said debug
|
||||
|
|
@ -74,7 +82,7 @@
|
|||
To increase the debug level of, for example, the id-table submodule,
|
||||
just write:
|
||||
|
||||
$ echo 3 > /sys/kernel/debug/wimax:wmx0/wimax_dl_id_table
|
||||
$ echo 3 > /sys/kernel/debug/wimax:wmx0/wimax_dl_id_table
|
||||
|
||||
Increasing numbers yield increasing debug information; for details of
|
||||
what is printed and the available levels, check the source. The code
|
||||
|
|
@ -8356,7 +8356,7 @@ M: linux-wimax@intel.com
|
|||
L: wimax@linuxwimax.org (subscribers-only)
|
||||
S: Supported
|
||||
W: http://linuxwimax.org
|
||||
F: Documentation/wimax/README.i2400m
|
||||
F: Documentation/admin-guide/wimax/i2400m.rst
|
||||
F: drivers/net/wimax/i2400m/
|
||||
F: include/uapi/linux/wimax/i2400m.h
|
||||
|
||||
|
|
@ -17358,7 +17358,7 @@ M: linux-wimax@intel.com
|
|||
L: wimax@linuxwimax.org (subscribers-only)
|
||||
S: Supported
|
||||
W: http://linuxwimax.org
|
||||
F: Documentation/wimax/README.wimax
|
||||
F: Documentation/admin-guide/wimax/wimax.rst
|
||||
F: include/linux/wimax/debug.h
|
||||
F: include/net/wimax.h
|
||||
F: include/uapi/linux/wimax.h
|
||||
|
|
|
|||
Loading…
Reference in New Issue