Testing 802.11n

[Adrian Chadd]

2011/11/25 Lev Serebryakov <lev at freebsd.org>:

>  Latest HEAD (with all your changes), 2 days uptime, only messages in
>  kernel log:
>
> wlan0: Ethernet address: f4:ec:38:a3:10:6d
> ar5416PerCalibrationN: NF calibration didn't finish; delaying CCA
> ...
> ath0: stuck beacon; resetting (bmiss count 4)
> ar5212StopDmaReceive: dma failed to stop in 10ms
> AR_CR=0x00000024
> AR_DIAG_SW=0x42000020

Sweet. Which NIC(s) are you using again?

>  On old code I've got "stuck beacon" every hour in idle and every 5
>  minutes under load.

That's very likely due to the ANI changes I've been slowly porting over.

I really would like someone who is interested in the radio side of
things to pick up the ANI code as a bit of a personal research
project. It's one of the areas of the atheros stuff which is actually
well covered in the patent literature and I can help interested people
out with it.

There's a lot of cool stuff you can affect by tweaking the ANI related
parameters (which are all just receive-side radio and baseband
parameters to do with signal levels and signal trigger thresholds.)
It's actually kind of fun. :)


Adrian