mirror of
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a23c58a3ac
Fix some wording and blinding table command options, clarify argument list for fwt_add and fwt_list, simplify fwt_list_route Signed-off-by: Luis Carlos Cobo Rus <luisca@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
517 lines
18 KiB
Plaintext
517 lines
18 KiB
Plaintext
================================================================================
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README for USB8388
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(c) Copyright © 2003-2006, Marvell International Ltd.
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All Rights Reserved
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This software file (the "File") is distributed by Marvell International
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Ltd. under the terms of the GNU General Public License Version 2, June 1991
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(the "License"). You may use, redistribute and/or modify this File in
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accordance with the terms and conditions of the License, a copy of which
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is available along with the File in the license.txt file or by writing to
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the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 or on the worldwide web at http://www.gnu.org/licenses/gpl.txt.
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THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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this warranty disclaimer.
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================================================================================
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=====================
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DRIVER LOADING
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=====================
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o. Copy the firmware image (e.g. usb8388.bin) to /lib/firmware/
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o. Load driver by using the following command:
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insmod usb8388.ko [fw_name=usb8388.bin]
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=====================
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IWPRIV COMMAND
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=====================
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NAME
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This manual describes the usage of private commands used in Marvell WLAN
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Linux Driver. All the commands available in Wlanconfig will not be available
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in the iwpriv.
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SYNOPSIS
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iwpriv <ethX> <command> [sub-command] ...
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iwpriv ethX setregioncode <n>
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iwpriv ethX getregioncode
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Version 5 Command:
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iwpriv ethX ledgpio <n>
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BT Commands:
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The blinding table (BT) contains a list of mac addresses that will be,
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by default, ignored by the firmware. It is also possible to invert this
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behavior so that we will ignore all traffic except for the portion
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coming from mac addresess in the list. It is primarily used for
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debugging and testing networks. It can be edited and inspected with
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the following commands:
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iwpriv ethX bt_reset
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iwpriv ethX bt_add <mac_address>
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iwpriv ethX bt_del <mac_address>
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iwpriv ethX bt_list <id>
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iwpriv ethX bt_get_invert <n>
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iwpriv ethX bt_set_invert <n>
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FWT Commands:
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The forwarding table (FWT) is a feature used to manage mesh network
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routing in the firmware. The FWT is essentially a routing table that
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associates a destination mac address (da) with a next hop receiver
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address (ra). The FWT can be inspected and edited with the following
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iwpriv commands, which are described in greater detail below.
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Eventually, the table will be automatically maintained by a custom
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routing protocol.
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NOTE: FWT commands replace the previous DFT commands. What were the DFT
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commands?, you might ask. They were an earlier API to the firmware that
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implemented a simple MAC-layer forwarding mechanism. In the unlikely
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event that you were using these commands, you must migrate to the new
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FWT commands which can be used to achieve the same functionality.
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iwpriv ethX fwt_add [parameters]
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iwpriv ethX fwt_del [parameters]
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iwpriv ethX fwt_lookup [parameters]
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iwpriv ethX fwt_list [parameters]
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iwpriv ethX fwt_list_route [parameters]
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iwpriv ethX fwt_list_neigh [parameters]
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iwpriv ethX fwt_reset [parameters]
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iwpriv ethX fwt_cleanup
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iwpriv ethX fwt_time
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MESH Commands:
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The MESH commands are used to configure various features of the mesh
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routing protocol. The following commands are supported:
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iwpriv ethX mesh_get_ttl
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iwpriv ethX mesh_set_ttl ttl
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DESCRIPTION
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Those commands are used to send additional commands to the Marvell WLAN
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card via the Linux device driver.
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The ethX parameter specifies the network device that is to be used to
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perform this command on. it could be eth0, eth1 etc.
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setregioncode
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This command is used to set the region code in the station.
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where value is 'region code' for various regions like
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USA FCC, Canada IC, Spain, France, Europe ETSI, Japan ...
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Usage:
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iwpriv ethX setregioncode 0x10: set region code to USA (0x10).
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getregioncode
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This command is used to get the region code information set in the
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station.
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ledgpio
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This command is used to set/get LEDs.
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iwpriv ethX ledgpio <LEDs>
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will set the corresponding LED for the GPIO Line.
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iwpriv ethX ledgpio
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will give u which LEDs are Enabled.
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Usage:
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iwpriv eth1 ledgpio 1 0 2 1 3 4
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will enable
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LED 1 -> GPIO 0
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LED 2 -> GPIO 1
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LED 3 -> GPIO 4
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iwpriv eth1 ledgpio
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shows LED information in the format as mentioned above.
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Note: LED0 is invalid
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Note: Maximum Number of LEDs are 16.
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fwt_add
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This command is used to insert an entry into the FWT table. The list of
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parameters must follow the following structure:
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iwpriv ethX fwt_add da ra [metric dir rate ssn dsn hopcount ttl expiration sleepmode snr]
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The parameters between brackets are optional, but they must appear in
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the order specified. For example, if you want to specify the metric,
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you must also specify the dir, ssn, and dsn but you need not specify the
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hopcount, expiration, sleepmode, or snr. Any unspecified parameters
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will be assigned the defaults specified below.
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The different parameters are:-
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da -- DA MAC address in the form 00:11:22:33:44:55
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ra -- RA MAC address in the form 00:11:22:33:44:55
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metric -- route metric (cost: smaller-metric routes are
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preferred, default is 0)
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dir -- direction (1 for direct, 0 for reverse,
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default is 1)
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rate -- data rate used for transmission to the RA,
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as specified for the rateadapt command,
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default is 3 (11Mbps)
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ssn -- Source Sequence Number (time at the RA for
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reverse routes. Default is 0)
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dsn -- Destination Sequence Number (time at the DA
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for direct routes. Default is 0)
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hopcount -- hop count (currently unused, default is 0)
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ttl -- TTL (Only used in reverse entries)
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expiration -- entry expiration (in ticks, where a tick is
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1024us, or ~ 1ms. Use 0 for an indefinite
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entry, default is 0)
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sleepmode -- RA's sleep mode (currently unused, default is
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0)
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snr -- SNR in the link to RA (currently unused,
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default is 0)
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The command does not return anything.
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fwt_del
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This command is used to remove an entry to the FWT table. The list of
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parameters must follow the following structure:
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iwpriv ethX fwt_del da ra [dir]
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where the different parameters are:-
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da -- DA MAC address (in the form "00:11:22:33:44:55")
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ra -- RA MAC address (in the form "00:11:22:33:44:55")
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dir -- direction (1 for direct, 0 for reverse,
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default is 1)
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The command does not return anything.
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fwt_lookup
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This command is used to get the best route in the FWT table to a given
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host. The only parameter is the MAC address of the host that is being
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looked for.
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iwpriv ethX fwt_lookup da
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where:-
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da -- DA MAC address (in the form "00:11:22:33:44:55")
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The command returns an output string identical to the one returned by
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fwt_list described below.
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fwt_list
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This command is used to list a route from the FWT table. The only
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parameter is the index into the table. If you want to list all the
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routes in a table, start with index=0, and keep listing until you get a
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"(null)" string. Note that the indicies may change as the fwt is
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updated. It is expected that most users will not use fwt_list directly,
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but that a utility similar to the traditional route command will be used
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to invoke fwt_list over and over.
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iwpriv ethX fwt_list index
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The output is a string of the following form:
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da ra valid metric dir rate ssn dsn hopcount ttl expiration
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sleepmode snr precursor
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where the different fields are:-
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da -- DA MAC address (in the form "00:11:22:33:44:55")
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ra -- RA MAC address (in the form "00:11:22:33:44:55")
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valid -- whether the route is valid (0 if not valid)
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metric -- route metric (cost: smaller-metric routes are preferred)
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dir -- direction (1 for direct, 0 for reverse)
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rate -- data rate used for transmission to the RA,
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as specified for the rateadapt command
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ssn -- Source Sequence Number (time at the RA for reverse routes)
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dsn -- Destination Sequence Number (time at the DA for direct routes)
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hopcount -- hop count (currently unused)
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ttl -- TTL (only used in reverse entries)
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expiration -- entry expiration (in ticks, where a tick is 1024us, or ~ 1ms. Use 0 for an indefinite entry)
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sleepmode -- RA's sleep mode (currently unused)
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snr -- SNR in the link to RA (currently unused)
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precursor -- predecessor in direct routes
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fwt_list_route
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This command is equivalent to fwt_list.
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fwt_list_neigh
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This command is used to list a neighbor from the FWT table. The only
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parameter is the neighbor ID. If you want to list all the neighbors in a
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table, start with nid=0, and keep incrementing nid until you get a
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"(null)" string. Note that the nid from a fwt_list_route command can be
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used as an input to this command. Also note that this command is meant
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mostly for debugging. It is expected that users will use fwt_lookup.
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One important reason for this is that the neighbor id may change as the
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neighbor table is altered.
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iwpriv ethX fwt_list_neigh nid
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The output is a string of the following form:
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ra sleepmode snr references
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where the different fields are:-
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ra -- RA MAC address (in the form "00:11:22:33:44:55")
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sleepmode -- RA's sleep mode (currently unused)
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snr -- SNR in the link to RA (currently unused)
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references -- RA's reference counter
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fwt_reset
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This command is used to reset the FWT table, getting rid of all the
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entries. There are no input parameters.
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iwpriv ethX fwt_reset
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The command does not return anything.
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fwt_cleanup
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This command is used to perform user-based garbage recollection. The
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FWT table is checked, and all the entries that are expired or invalid
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are cleaned. Note that this is exported to the driver for debugging
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purposes, as garbage collection is also fired by the firmware when in
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space problems. There are no input parameters.
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iwpriv ethX fwt_cleanup
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The command does returns the number of invalid/expired routes deleted.
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fwt_time
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This command returns a card's internal time representation. It is this
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time that is used to represent the expiration times of FWT entries. The
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number is not consistent from card to card; it is simply a timer count.
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The fwt_time command is used to inspect the timer so that expiration
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times reported by fwt_list can be properly interpreted.
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iwpriv ethX fwt_time
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mesh_get_ttl
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The mesh ttl is the number of hops a mesh packet can traverse before it
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is dropped. This parameter is used to prevent infinite loops in the
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mesh network. The value returned by this function is the ttl assigned
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to all mesh packets. Currently there is no way to control the ttl on a
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per packet or per socket basis.
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iwpriv ethX mesh_get_ttl
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mesh_set_ttl ttl
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Set the ttl. The argument must be between 0 and 255.
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iwpriv ethX mesh_set_ttl <ttl>
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=========================
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ETHTOOL
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=========================
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Use the -i option to retrieve version information from the driver.
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# ethtool -i eth0
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driver: libertas
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version: COMM-USB8388-318.p4
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firmware-version: 5.110.7
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bus-info:
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Use the -e option to read the EEPROM contents of the card.
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Usage:
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ethtool -e ethX [raw on|off] [offset N] [length N]
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-e retrieves and prints an EEPROM dump for the specified ethernet
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device. When raw is enabled, then it dumps the raw EEPROM data
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to stdout. The length and offset parameters allow dumping cer-
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tain portions of the EEPROM. Default is to dump the entire EEP-
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ROM.
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# ethtool -e eth0 offset 0 length 16
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Offset Values
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------ ------
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0x0000 38 33 30 58 00 00 34 f4 00 00 10 00 00 c4 17 00
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========================
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DEBUGFS COMMANDS
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========================
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those commands are used via debugfs interface
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===========
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rdmac
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rdbbp
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rdrf
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These commands are used to read the MAC, BBP and RF registers from the
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card. These commands take one parameter that specifies the offset
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location that is to be read. This parameter must be specified in
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hexadecimal (its possible to preceed preceding the number with a "0x").
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Path: /debugfs/libertas_wireless/ethX/registers/
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Usage:
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echo "0xa123" > rdmac ; cat rdmac
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echo "0xa123" > rdbbp ; cat rdbbp
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echo "0xa123" > rdrf ; cat rdrf
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wrmac
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wrbbp
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wrrf
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These commands are used to write the MAC, BBP and RF registers in the
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card. These commands take two parameters that specify the offset
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location and the value that is to be written. This parameters must
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be specified in hexadecimal (its possible to preceed the number
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with a "0x").
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Usage:
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echo "0xa123 0xaa" > wrmac
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echo "0xa123 0xaa" > wrbbp
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echo "0xa123 0xaa" > wrrf
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sleepparams
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This command is used to set the sleepclock configurations
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Path: /debugfs/libertas_wireless/ethX/
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Usage:
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cat sleepparams: reads the current sleepclock configuration
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echo "p1 p2 p3 p4 p5 p6" > sleepparams: writes the sleepclock configuration.
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where:
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p1 is Sleep clock error in ppm (0-65535)
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p2 is Wakeup offset in usec (0-65535)
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p3 is Clock stabilization time in usec (0-65535)
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p4 is Control periodic calibration (0-2)
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p5 is Control the use of external sleep clock (0-2)
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p6 is reserved for debug (0-65535)
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subscribed_events
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The subscribed_events directory contains the interface for the
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subscribed events API.
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Path: /debugfs/libertas_wireless/ethX/subscribed_events/
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Each event is represented by a filename. Each filename consists of the
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following three fields:
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Value Frequency Subscribed
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To read the current values for a given event, do:
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cat event
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To set the current values, do:
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echo "60 2 1" > event
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Frequency field specifies the reporting frequency for this event.
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If it is set to 0, then the event is reported only once, and then
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automatically unsubscribed. If it is set to 1, then the event is
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reported every time it occurs. If it is set to N, then the event is
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reported every Nth time it occurs.
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beacon_missed
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Value field specifies the number of consecutive missing beacons which
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triggers the LINK_LOSS event. This event is generated only once after
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which the firmware resets its state. At initialization, the LINK_LOSS
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event is subscribed by default. The default value of MissedBeacons is
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60.
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failure_count
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Value field specifies the consecutive failure count threshold which
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triggers the generation of the MAX_FAIL event. Once this event is
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generated, the consecutive failure count is reset to 0.
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At initialization, the MAX_FAIL event is NOT subscribed by
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default.
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high_rssi
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This event is generated when the average received RSSI in beacons goes
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above a threshold, specified by Value.
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low_rssi
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This event is generated when the average received RSSI in beacons goes
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below a threshold, specified by Value.
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high_snr
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This event is generated when the average received SNR in beacons goes
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above a threshold, specified by Value.
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low_snr
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This event is generated when the average received SNR in beacons goes
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below a threshold, specified by Value.
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extscan
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This command is used to do a specific scan.
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Path: /debugfs/libertas_wireless/ethX/
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Usage: echo "SSID" > extscan
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Example:
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echo "LINKSYS-AP" > extscan
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To see the results of use getscantable command.
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getscantable
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Display the current contents of the driver scan table (ie. get the
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scan results).
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Path: /debugfs/libertas_wireless/ethX/
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Usage:
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cat getscantable
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setuserscan
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Initiate a customized scan and retrieve the results
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Path: /debugfs/libertas_wireless/ethX/
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Usage:
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echo "[ARGS]" > setuserscan
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where [ARGS]:
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chan=[chan#][band][mode] where band is [a,b,g] and mode is
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blank for active or 'p' for passive
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bssid=xx:xx:xx:xx:xx:xx specify a BSSID filter for the scan
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ssid="[SSID]" specify a SSID filter for the scan
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keep=[0 or 1] keep the previous scan results (1), discard (0)
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dur=[scan time] time to scan for each channel in milliseconds
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probes=[#] number of probe requests to send on each chan
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type=[1,2,3] BSS type: 1 (Infra), 2(Adhoc), 3(Any)
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Any combination of the above arguments can be supplied on the command line.
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If the chan token is absent, a full channel scan will be completed by
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the driver. If the dur or probes tokens are absent, the driver default
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setting will be used. The bssid and ssid fields, if blank,
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will produce an unfiltered scan. The type field will default to 3 (Any)
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and the keep field will default to 0 (Discard).
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Examples:
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1) Perform an active scan on channels 1, 6, and 11 in the 'g' band:
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echo "chan=1g,6g,11g" > setuserscan
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2) Perform a passive scan on channel 11 for 20 ms:
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echo "chan=11gp dur=20" > setuserscan
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3) Perform an active scan on channels 1, 6, and 11; and a passive scan on
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channel 36 in the 'a' band:
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echo "chan=1g,6g,11g,36ap" > setuserscan
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4) Perform an active scan on channel 6 and 36 for a specific SSID:
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echo "chan=6g,36a ssid="TestAP"" > setuserscan
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5) Scan all available channels (B/G, A bands) for a specific BSSID, keep
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the current scan table intact, update existing or append new scan data:
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echo "bssid=00:50:43:20:12:82 keep=1" > setuserscan
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6) Scan channel 6, for all infrastructure networks, sending two probe
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requests. Keep the previous scan table intact. Update any duplicate
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BSSID/SSID matches with the new scan data:
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echo "chan=6g type=1 probes=2 keep=1" > setuserscan
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All entries in the scan table (not just the new scan data when keep=1)
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will be displayed upon completion by use of the getscantable ioctl.
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==============================================================================
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