Re: bcma usage in isr context

["Arend van Spriel" <arend@broadcom.com>]

On 12/07/2011 01:52 PM, Rafał Miłecki wrote:
> W dniu 5 grudnia 2011 16:27 użytkownik Arend van Spriel
> <arend@broadcom.com> napisał:
>>> You're right, we don't handle this properly. I'll try to send patch
>>> today to make use of fixed windows. I've it here for some time
>>> already, just didn't clean it enough.
>>>
>>
>> Ok. For now I have a patch in the bcma read/write host_pci functions
>> that solves it, but fixed bar windows are preferable.
> 
> Have you tested my patch? Does it solver your issue? I can't wait to
> see bcma patches for brcmsmac :)
> 

Not yet. I had a patch in which each read/write used a
spin_lock_irqsave/spin_unlock_irqrestore. Did not cause to much latency.
I intend to rebase my changes using your patch later today.

Your patch only works if all cores fit in the window. This is the case
for the current pci-based broadcom chipsets so the patch is fine. I will
let you know the results. I also intend to do some suspend/resume
testing. I believe there was some issue mentioned on wireless mailing
list with bcma/b43.

Gr. AvS