From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,T_DKIMWL_WL_HIGH autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 40F28C04AB5 for ; Mon, 3 Jun 2019 10:39:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 17B8C28071 for ; Mon, 3 Jun 2019 10:39:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="Q0drrOco" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727150AbfFCKjT (ORCPT ); Mon, 3 Jun 2019 06:39:19 -0400 Received: from mail-ed1-f47.google.com ([209.85.208.47]:42127 "EHLO mail-ed1-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726791AbfFCKjT (ORCPT ); Mon, 3 Jun 2019 06:39:19 -0400 Received: by mail-ed1-f47.google.com with SMTP id z25so203452edq.9 for ; Mon, 03 Jun 2019 03:39:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=subject:from:to:cc:references:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=sbbLd1XLlENnBmrF4s53/oNZB7ZngZMnTgBYHsHtKfs=; b=Q0drrOcoMLVzQa5muJskCLuoQCsF3BDljaEWS8KkVux2fUj2xtM1MLOCyN73VBK88L 81R4zlwnCFPAZhNO02X8PoZFyBGSC0VxgN+y4jgQ6OBJSqO5rD+wLMS25kJIdawaCbg1 3P1T41gDc5097/IqnKavhA7MoPoa+GToh/n+U= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:from:to:cc:references:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=sbbLd1XLlENnBmrF4s53/oNZB7ZngZMnTgBYHsHtKfs=; b=EgKpycb7q019UtshqeGzfE1/icbVqsWylK93hIlsKOGMHLkxYXMznxn7VddNWTaSAh 72inl7tuLTbhIZFACQR+tRIhR2QdPBMU2raKVvwJxvByVqIVPeAD9LgvsWAAGNX616ng 5yQvewETM7We5A3O9XcTpf84qXhb6qPPIhXQvgV4RsnysLMZGmpCyZ1UHwSSPZXBtLI0 lukvsyoWn7zkpktmlaEIOI05TJMzdl51R4Rie3Hku38pXQ8PlEDf4ZFpOY5D2k3OIITb qvFS2Ty9qAgkKB/JbFwdNSOfwNWVA1JNhEfRMHBNtwnGLMpVctxwqXLLeE61ZewN9Ou1 y3MQ== X-Gm-Message-State: APjAAAW3O/i07CcvCdXuBW3BMQgD4O55+JNnVon6C9auHfpc/wax0H9S RJyyuObRl3LQmEp9AkACa04r8WRMUk2EEPqsmxV0l1GvSWveE6eOKGhtJ9XWNsEWHAQQKpKb7f6 qdb7XhtAxYDGd8FJ90t4AJpG1DqEmE60sj896H3NRapJDi03v6zXa4oxJ9Nfi6VuzdxpPXQScd9 JGS2W6o5d+2AX8sA== X-Google-Smtp-Source: APXvYqwhwyChvw17nedi7N7xWVsdNAk9jOETBp/z2uoUzWM9uK+HFEmEYnt0Y271ta+HHDIMSbcpMA== X-Received: by 2002:a17:907:1102:: with SMTP id qu2mr22713036ejb.49.1559558357214; Mon, 03 Jun 2019 03:39:17 -0700 (PDT) Received: from [10.176.68.125] ([192.19.248.250]) by smtp.gmail.com with ESMTPSA id c7sm1106500edl.6.2019.06.03.03.39.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 03 Jun 2019 03:39:16 -0700 (PDT) Subject: Re: [RFC 0/8] nl80211: add 6GHz band support From: Arend Van Spriel To: Johannes Berg Cc: linux-wireless@vger.kernel.org References: <1558353645-18119-1-git-send-email-arend.vanspriel@broadcom.com> <16aeb2310e8.2764.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> <9ba78df6-18a3-5c1c-6c57-3fa71531b460@broadcom.com> Message-ID: <6d40e69c-0cea-cc92-7974-c54d0f70812e@broadcom.com> Date: Mon, 3 Jun 2019 12:39:14 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <9ba78df6-18a3-5c1c-6c57-3fa71531b460@broadcom.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On 5/27/2019 10:46 PM, Arend Van Spriel wrote: > On 5/24/2019 8:38 PM, Arend Van Spriel wrote: >> On May 24, 2019 1:56:43 PM Johannes Berg >> wrote: >> >>> Hi Arend, >>> >>> On Mon, 2019-05-20 at 14:00 +0200, Arend van Spriel wrote: >>>> In 802.11ax D4.0 a new band has been proposed. This series contains >>>> changes to cfg80211 for supporting this band. With 2GHz and 5GHz there >>>> was no overlap in channel number. However, this new band has channel >>>> numbers with a range from 1 up to 253. >>> >>> At the wireless workshop in Prague, we looked at this and sort of >>> decided that it'd be better to put all the 6 GHz channels into the 5 GHz >>> "band" in nl80211, to avoid all the "5 || 6" since they're really the >>> same except for very specific places like scanning. >> >> Would have liked to be there, but attending is no longer an option for >> me. We now have two autistic, non-verbal children and I am the primary >> caregiver for the oldest because my wife can't handle him. Guess I >> should have checked the workshop notes before working on this :-) Do >> you have URL? > > Found the netdev wifi workshop page and looked over the slides quickly, > but the notes page is pretty empty ;-) > >> Agree that most functional requirements for 6 GHz are same as 5 GHz. >> There are some 6 GHz specifics about beaconing as well. > > This came up in discussion with my colleagues today and I would say from > mac80211 perspective there is more to it than just scanning. In short > the 6GHz band is for HE-only operation so for example only HE rates may > be used. As the bitrates are in ieee80211_supported_band having a > separate 6GHz band seems to have a (slight?) advantage. Hi, Johannes Any thoughts on this? Regards, Arend