update - better EDMA RX support, testing AR9580

[Joshua Isom]

On 3/19/2013 10:31 PM, Adrian Chadd wrote:
> On 19 March 2013 12:39, Adrian Chadd <adrian at freebsd.org> wrote:
>> Hi all,
>>
>> I've just committed some new RX handling code. Since the RX FIFO on
>> the AR9380 and later chips is very shallow (128 entries), you have to
>> refill the FIFO much quicker than you can handle frames.
>
> .. and an AR9390 STA -> AR9380 AP at MCS24 is giving me around 230mbit TCP.
>
> My goal is to hit 200mbit TCP on 2x2 and 300mbit TCP on 3x3.
>
> But, I won't complain about getting to 230mbit this early in the game.
>
>
>
> Adrian

Any tips for backporting the code to -STABLE?  Currently I had to 
comment out the scsi cd driver because it was causing kernel panics. 
Now I'm getting kernel panics from geom_io.c due to a failed assert.