Re: [PATCH 1/2] mac80211_hwsim: Set VHT capabilities only for the 5.2 GHz band

[Ben Greear <greearb@candelatech.com>]

On 04/08/2015 11:29 AM, Peer, Ilan wrote:
> Hi Ben,
> 
>> -----Original Message-----
>> From: Ben Greear [mailto:greearb@candelatech.com]
>> Sent: Tuesday, April 07, 2015 19:08
>> To: Peer, Ilan
>> Cc: linux-wireless@vger.kernel.org
>> Subject: Re: [PATCH 1/2] mac80211_hwsim: Set VHT capabilities only for the
>> 5.2 GHz band
>>
>> On 04/07/2015 09:05 AM, Ilan Peer wrote:
>>> Previously, VHT capabilities and supported MCSs where set for all
>>> bands, although VHT is only allowed on 5.2 GHz band. Fix it.
>>
>> I saw a patch on ath10k list that enabled VHT for 2.4Ghz for that
>> driver/firmware...are you sure it is absolutely not supported?
>>
> 
> According to the 802.11ac amendment: "The IEEE 802.11 VHT STA operates in frequency bands below 6 GHz excluding the 2.4 GHz band", so at least the spec. is clear about it. However, I guess it would be possible to enable VHT for 2.4 as well to enjoy some of benefits, but do you see a reason/use case to enable it also for hwsim?

I just don't see a reason to forbid it since hwsim never goes over the air, and at least
some hardware appears to support AC on 2.4, but I don't care strongly about
the issue one way or another.

Thanks,
Ben

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