[Wireless] Can't connect to wlan

[Sam Leffler]

Yousif Hassan wrote:
> On Wed, 2008-03-12 at 08:06 +1030, Benjamin Close wrote:
>   
>> Alphons "Fonz" van Werven wrote:
>>     
>>> Mel wrote:
>>>
>>>       
>>>>>     Do the recent patches by Andrew make a difference?
>>>>>
>>>>> http://people.freebsd.org/~thompsa/wpi_head.diff
>>>>> http://people.freebsd.org/~thompsa/wpi_releng7.diff
>>>>>           
>
> (ccing freebsd-net)
>
> Ben,
>
> I had a go with this patch today on top of 7.0-RELEASE.
>
> The good:
> - Switching off the radio and back on finally works - nice work.
> - Scanning seems faster (but see caveat below)
> - Association is MUCH faster (mind you, I don't use an encrypted AP).
> - The "failed to align memory" stuff when the driver loads up - fixed. 
> - The fact that it reloaded in the kernel even if I manually kldunloaded
> if_wpi.ko - fixed
>
> The slightly wonky:
> - As reported by someone else:
>   wpi0: timeout resetting Tx ring 1
>   wpi0: timeout resetting Tx ring 3
>   wpi0: timeout resetting Tx ring 4
> appear on startup and occasionally on kldload - however they don't
> appear to adversely affect too much
>
> The ugly:
> - I can only do an ifconfig wpi0 scan every OTHER time - in between
>   successful attempts, I get
>   wpi0: fatal firmware error
>   wpi0: timeout resetting Tx ring (or: timeout resetting Tx ring 0)
>   wpi0: link state changed to DOWN
>
>   This wouldn't be so bad since it works every other time, but the
> problem is that every time I do a scan, it sets the link state down,
> causing the connection to drop - doesn't seem normal.  Of course then it
> comes right back up but the network interruption is not so great.
>
> Hmm - what else?  The whole thing seems - livelier.  I need to run some
> throughput benchmarks but traffic to/from the card on my local network
> seems faster and more responsive.  Hopefully this isn't the placebo
> effect. ;)
>
> Great work to you & rest of team on this patch... it's more than usable
> at this point!
>   

wpi doesn't yet support background scan so doing an explicit scan from 
the command line will disconnect you from any ap you care connected to.  
It shouldn't be hard to add bgscan--but that's easy for me to say :)

    Sam