12-23-2007
rl1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr 00:1b:11:5b:71:58 media: Ethernet autoselect (none) status: no carrier
inet 176.16.1.2 netmask 0xfff00000 broadcast 176.31.255.255
inet6 fe80::21b:11ff:fe5b:7158%rl1 prefixlen 64 scopeid 0x2
ral0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr 00:1c:10:e4:eb:0e groups: wlan media: IEEE802.11 autoselect mode 11g hostap statuc: active
ieee802.11: nwid xxx chan 11 bssid: lladdr nwkey xxx 100dBm
inet 192.168.2.2 netmask 0xffffff00 broadcast 192.168.2.255
inet6 fe80::21c:10ff:fee4:eb0e%ral0 prefixlen 64 scopeid 0x3
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LEARN ABOUT FREEBSD
if_mwl
MWL(4) BSD Kernel Interfaces Manual MWL(4)
NAME
mwl -- Marvell 88W8363 IEEE 802.11n wireless network driver
SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file:
device mwl
device mwlfw
device wlan
device firmware
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
if_mwl_load="YES"
DESCRIPTION
The mwl driver provides support for IEEE 802.11n wireless network adapters based on Marvell 88W8363 parts. PCI and/or CardBus interfaces are
supported.
This driver requires the firmware built with the mwlfw module to work. Normally this module is loaded on demand by the driver but it may
also be compiled into the kernel.
Supported features include 802.11n, power management, BSS, MBSS, and host-based access point operation modes. All host/device interaction is
via DMA.
The mwl driver encapsulates IP and ARP traffic as 802.11 frames, however it can receive either 802.11 or 802.3 frames. Devices support
802.11n, 802.11a, 802.11g, and 802.11b operation with transmit speeds appropriate to each. The actual transmit speed used is dependent on
signal quality and the ``rate control'' algorithm implemented in the firmware. All chips have hardware support for WEP, AES-CCM, TKIP, and
Michael cryptographic operations.
The driver supports station, hostap, mesh, and wds mode operation. Multiple hostap virtual interfaces may be configured for simultaneous
use. When multiple interfaces are configured each may have a separate mac address that is formed by setting the U/L bits in the mac address
assigned to the underlying device. Any number of wds virtual interfaces may be configured together with hostap interfaces. Multiple station
interfaces may be operated together with hostap interfaces to construct a wireless repeater device. For more information on configuring this
device, see ifconfig(8).
Devices supported by the mwl driver come in either Cardbus or mini-PCI packages. Wireless cards in Cardbus slots may be inserted and ejected
on the fly.
EXAMPLES
Join an existing BSS network (ie: connect to an access point):
ifconfig wlan create wlandev mwl0 inet 192.168.0.20
netmask 0xffffff00"
Join a specific BSS network with network name ``my_net'':
ifconfig wlan create wlandev mwl0 inet 192.168.0.20
netmask 0xffffff00 ssid my_net"
Join a specific BSS network with WEP encryption:
ifconfig wlan0 create wlandev mwl0
ifconfig wlan0 inet 192.168.0.20 netmask 0xffffff00 ssid my_net
wepmode on wepkey 0x8736639624
Create an 802.11g host-based access point:
ifconfig wlan0 create wlandev mwl0 wlanmode hostap
ifconfig wlan0 inet 192.168.0.10 netmask 0xffffff00 ssid my_ap
mode 11g
Create an 802.11a mesh station:
ifconfig wlan0 create wlandev mwl0 wlanmode mesh
ifconfig wlan0 meshid my_mesh mode 11a inet 192.168.0.10/24
Create two virtual 802.11a host-based access points, one with WEP enabled and one with no security, and bridge them to the fxp0 (wired)
device:
ifconfig wlan0 create wlandev mwl0 wlanmode hostap
ssid paying-customers wepmode on wepkey 0x1234567890
mode 11a up
ifconfig wlan1 create wlandev mwl0 wlanmode hostap bssid
ssid freeloaders up
ifconfig bridge0 create addm wlan0 addm wlan1 addm fxp0 up
DIAGNOSTICS
mwl%d: unable to setup builtin firmware There was a problem downloading and/or setting up the firmware. The device is not usable.
mwl%d: failed to setup descriptors: %d There was a problem setting up the DMA data structures. This typically is caused by not being able
to allocate contiguous memory.
mwl%d: transmit timeout A frame dispatched to the hardware for transmission did not complete in time. This should not happen.
mwl%d: device not present A cardbus device was ejected while active; the request to the firmware was not completed.
SEE ALSO
cardbus(4), intro(4), mwlfw(4), pci(4), wlan(4), wlan_ccmp(4), wlan_tkip(4), wlan_wep(4), wlan_xauth(4), hostapd(8), ifconfig(8),
wpa_supplicant(8)
HISTORY
The mwl device driver first appeared in FreeBSD 8.0.
BUGS
The driver does not support power-save operation in station mode; consequently power use is suboptimal (e.g. on a laptop).
BSD
July 8, 2009 BSD