FreeBSD-8.0 802.11n support with ath/mwl

[Rui Paulo]

On 1 Mar 2010, at 03:05, Jim Pingle wrote:

> On 2/28/2010 9:41 PM, Rui Paulo wrote:
>> On 1 Mar 2010, at 02:26, Jim Pingle wrote:
>>> Ah, I wasn't aware of wlandebug(8). However, it doesn't seem to operate
>>> on this mwl(4) card. It sets the value of the sysctl net.wlan.0.debug
>>> and that doesn't show up on my system. Another system with a ral(4) card
>>> does have that sysctl. Judging by the information in the wlandebug(8)
>>> man page it appears as though this may be a side effect of mwl doing
>>> much of the work in firmware.
>> 
>> wlandebug takes an -i argument. I seem to recall you created your wlan interface named "mwl_wlan0", so you need to type wlandebug -i mwl_wlan0.
> 
> I saw that, but that is hardcoded to expect wlan<x> (wlan0, wlan1, etc)
> for an interface name. Having seen that, I recompiled wlandebug without
> the hardcoded interface name check and it didn't work either, but it did
> toss an error for the sysctl it was trying to tweak.

The whole system was designed for the interfaces to start with "wlan" and be named "wlan<something>".

> That made me look deeper at the code and see it was really just setting
> the debug sysctl based on flags that wlandebug was aware of. Handy, but
> the same thing could be done by hand with sysctl and some bitwise math
> in a pinch, assuming the interface has the right oids. (Which mine
> doesn't, for some reason...)

The purpose of wlandebug is to not do any math by hand.

--
Rui Paulo