Re: [PATCH v2] mac80211: Optimize scans on current operating channel.

[Ben Greear <greearb@candelatech.com>]

On 01/26/2011 07:22 AM, Johannes Berg wrote:
> On Mon, 2011-01-24 at 14:12 -0800, Ben Greear wrote:
>> On 01/23/2011 01:18 AM, Johannes Berg wrote:
>>
>>> Also, are you sure the filter configuration works correctly this way? If
>>> you can, I'd like to look at a binary trace of the commands going to the
>>> device with this change: "trace-cmd record -e mac80211".
>>
>> I uploaded two trace files.  One that scans the single operating
>> channel, and a second that scans all channels.  This is with my -v2
>> patch applied, using ath9k as the driver.  There are two virtual
>> STA interfaces configured on this system for this test.
>>
>>
>> http://www.candelatech.com/~greearb/trace-scan-all.dat.bz2
>> http://www.candelatech.com/~greearb/trace-scan-one.dat.bz2
>>
>> Please let me know what you think.
>
> Thanks. I don't think the -one one really is just a single scan? But
> anyway, looking at it now.

No, sorry..it's probably several scans and other things..but it should
not scan more than one (operating) channel.

Also, I'm seeing problems where sometimes wpa_supplicant doesn't
see scan results when scanning a single operating channel.  I think this is
probably a bug in my mac80211 patch.  I plan to look at that in
detail today.

Thanks,
Ben

>
> johannes


-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com