> On Fri, 2010-03-05 at 16:16 -0800, Weongyo Jeong wrote:
> > On Fri, Mar 05, 2010 at 04:44:34PM -0500, Joe Marcus Clarke wrote:
> > > 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.
> >
> > OK. I'd like to see some verbose message from bwn(4) after applying
> > attached patch with email. Could you please test with it and show me
> > dmesg?
> >
> > I tested 3 broadcom card whose revisions are 5 and 9 and it looks it's
> > working.
> >
> > I have one LP PHY device, half MiniPCI-E for laptop, but could not test
> > with this patch because I could not turn on RF; it's connected with
> > desktop using converter MiniPCI-E to PCI-E though normally it looks
> > MiniPCI-E devices are turned on using H/W RF switch.
>
> Here are two dmesg outputs. Both were taken with this patch. One is
> with PIO mode, and the other is with (working) DMA mode. The names
> indicate which is which.
>
>
http://www.marcuscom.com/downloads/salami_pio.dmesg
>
http://www.marcuscom.com/downloads/salami_dma.dmesg
