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=-3.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no 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 1963BC432BE for ; Thu, 26 Aug 2021 23:18:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D825A60F5B for ; Thu, 26 Aug 2021 23:18:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243620AbhHZXTR (ORCPT ); Thu, 26 Aug 2021 19:19:17 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:39430 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234555AbhHZXTL (ORCPT ); Thu, 26 Aug 2021 19:19:11 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1630019903; h=Content-Transfer-Encoding: Content-Type: MIME-Version: Message-ID: Date: Subject: In-Reply-To: References: Cc: To: From: Sender; bh=td6+lKliZWnn37e5EfNvN74QchLXCgx0S8KN6MlSPAI=; b=tC86QvNimOfUZ3+3AQeHQSJKj0XrFElg4tw8O5UgLQOBRueBLhn98p7ifHmTYSL63VPmJPdo Ho/kkq2jUIJRAte+mdQaA4V1iNVnaOG800/QIF1X5Yo8XjwcgP0wOmYINhbSL3ClIpgenJa6 Hv8YKWTE5xKzF8dIYBiuXAkrpyY= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n03.prod.us-west-2.postgun.com with SMTP id 6128213e4d644b7d1c7b25c8 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Thu, 26 Aug 2021 23:18:22 GMT Sender: msinada=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 64DA5C4360C; Thu, 26 Aug 2021 23:18:22 +0000 (UTC) Received: from MSINADA (unknown [98.45.135.251]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: msinada) by smtp.codeaurora.org (Postfix) with ESMTPSA id C4CD2C4338F; Thu, 26 Aug 2021 23:18:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.codeaurora.org C4CD2C4338F Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=codeaurora.org From: "Muna Sinada" To: "'Johannes Berg'" Cc: References: <1628660743-24413-1-git-send-email-msinada@codeaurora.org> In-Reply-To: Subject: RE: [PATCH v2] cfg80211: Handle driver updated MU-EDCA params Date: Thu, 26 Aug 2021 16:18:21 -0700 Message-ID: <001801d79ad0$a9a92a70$fcfb7f50$@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Content-Language: en-us Thread-Index: AQKPi0h8Y3QBEVBPnfPFaPv7V44okgHUa8dSqgfksbA= Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Hello Johannes, The firmware algorithm determines better MU-EDCA parameters based on = channel conditions. The updated parameters are used and reported to = Hostapd to reflect in AP beacons. These dynamic parameter updates are = offloaded to firmware for better user experience, and this would also = mean that there are hardly any details on specifically how these = parameters are determined but we know that the updated parameters need = to be reflected in future beacons. This feature is meant for AP mode, = and it is a ath11k feature, thus no spec references. Thank you, Muna -----Original Message----- From: Johannes Berg =20 Sent: Tuesday, August 17, 2021 6:54 AM To: Muna Sinada Cc: linux-wireless@vger.kernel.org Subject: Re: [PATCH v2] cfg80211: Handle driver updated MU-EDCA params On Tue, 2021-08-10 at 22:45 -0700, Muna Sinada wrote: > Add necessary functions and attributes to receive updated MU-EDCA=20 > parameters from driver and send to user space, where management frame=20 > are updated to reflect latest parameters. >=20 On second thought - this really could use some more explanation? Why are MU-EDCA parameters determined by the driver? What does this = actually do? Is it meant for AP mode, or client mode? Any spec = references? Mac80211 parses this coming from the AP, so probably this is meant for = AP mode, but why? Why wouldn't hostapd determine the correct parameters? etc. johannes