Return-path: Received: from mail2.candelatech.com ([208.74.158.173]:54418 "EHLO mail2.candelatech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753903AbbDHSld (ORCPT ); Wed, 8 Apr 2015 14:41:33 -0400 Message-ID: <5525765C.6050808@candelatech.com> (sfid-20150408_204149_622970_C1D2C69D) Date: Wed, 08 Apr 2015 11:41:32 -0700 From: Ben Greear MIME-Version: 1.0 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 References: <1428422722-655-1-git-send-email-ilan.peer@intel.com> <552400F4.5010701@candelatech.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: 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 Candela Technologies Inc http://www.candelatech.com