[PATCH v4 2/4] scan: Add a configuration option to disable 6GHz collocated scanning

Ben Greear greearb at candelatech.com
Wed Apr 20 08:52:41 PDT 2022

On 4/19/22 11:40 PM, Peer, Ilan wrote:
> Hi,
>> -----Original Message-----
>> From: Jouni Malinen <j at w1.fi>
>> Sent: Monday, April 18, 2022 18:20
>> To: Peer, Ilan <ilan.peer at intel.com>
>> Cc: hostap at lists.infradead.org
>> Subject: Re: [PATCH v4 2/4] scan: Add a configuration option to disable 6GHz
>> collocated scanning
>> On Mon, Apr 11, 2022 at 05:21:59PM +0300, Ilan Peer wrote:
>>> This configuration option can be used to disable 6GHz collocated scan
>>> logic which would result with passively scanning 6GHz non PSC channels.
>> Is this really something we should do as a configuration option? Is the default
>> behavior to scan only the 6 GHz channels that are either PSC or that have
>> been determined to have a BSS based on neighbor report? And is that
>> somehow conditional on active vs. passive scanning?
>> I could understand having a need for a specific SCAN command that will scan
>> all 6 GHz channels passively, but it would seem more reasonable to do that
>> with a SCAN control interface command argument instead of a configuration
>> parameter that applies to all scan operations. Isn't it way too slow to scan all
>> non-PSC channels on the 6 GHz using a passive scan for normal use?
> This was requested as testing option by Ben. I agree that extending the scan command to
> force passively scanning 6GHz channels makes more sense. I'll prepare such a change.

I don't know enough about this particular issue to have an opinion about how it is implemented,
I just need a way to let ax210 driver work with the upstream ax210 patch that changed scanning
behaviour for 6E channels, since it broke my STA associating to a vendor's AP.


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

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