Problem with new bwn driver on -CURRENT

[Joe Marcus Clarke]

On 3/5/10 3:53 PM, Weongyo Jeong wrote:
> On Thu, Mar 04, 2010 at 12:12:02AM -0500, Joe Marcus Clarke wrote:
>> On Wed, 2010-03-03 at 15:14 -0800, Weongyo Jeong wrote:
>>>> When it occurs again, I will get you the details and the full dmesg.  Do
>>>> you want a verbose dmesg, or a standard one?
>>>
>>> I think a standard one is enough.  Thank you.
>>
>> Here you go.  This is on -CURRENT from about 30 minutes ago.  Thanks for
>> looking into this.
>>
>> http://www.marcuscom.com/downloads/salami.dmesg
> 
> Thank you for dmesg.  It looks using PIO mode is only a way to avoid
> this problem.
> 
> I looked sources and problems of other Broadcom wireless driver for LP
> PHY users.  They also encounters this issue and are trying to solve
> this but no luck and no perfect patch until now.
> 
> Recently AFAIK wireless-test git of linux adopted a patch `gracefully
> convert DMA to PIO mode' to solve it.
> 
> Additionally some guys tolds some success story when they disabled ACPI
> but it looks it's not a perfect solution.
> 
> IIRC you said PIO worked for association with your AP but no further
> traffic.  However I wonder that this is weird for me because paths of
> sending management frames and sending data frames are same.  Could you
> please recheck whether PIO mode worked?  I'll try to test PIO mode on my
> environment again.

I can absolutely confirm PIO mode does NOT work with my card.  I tested
on a clean power-up.  The card associates, but does not pass any
traffic.  I do not see the same decryption messages that I do with DMA mode.

Joe

-- 
Joe Marcus Clarke
FreeBSD GNOME Team	::	gnome at FreeBSD.org
FreeNode / #freebsd-gnome
http://www.FreeBSD.org/gnome