Return-path: Received: from mail-qt0-f194.google.com ([209.85.216.194]:34934 "EHLO mail-qt0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756094AbeFOLqS (ORCPT ); Fri, 15 Jun 2018 07:46:18 -0400 Received: by mail-qt0-f194.google.com with SMTP id s9-v6so8699828qtg.2 for ; Fri, 15 Jun 2018 04:46:18 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <5B221E56.4000009@broadcom.com> References: <1528887539-26821-1-git-send-email-tamizhr@codeaurora.org> <87fu1q7uq5.fsf@toke.dk> <9fd8762e9d2f4b93b299ab859e389b46@aphydexm01b.ap.qualcomm.com> <87a7ry7meo.fsf@toke.dk> <5B221E56.4000009@broadcom.com> From: Janusz Dziedzic Date: Fri, 15 Jun 2018 13:46:17 +0200 Message-ID: (sfid-20180615_134623_921649_A6302C27) Subject: Re: [PATCH 0/4] cfg80211/mac80211: Add support to configure and monitor txrate threshold To: Arend van Spriel Cc: =?UTF-8?B?VG9rZSBIw7hpbGFuZC1Kw7hyZ2Vuc2Vu?= , Tamizh Chelvam Raja , Tamizh chelvam , "johannes@sipsolutions.net" , "linux-wireless@vger.kernel.org" Content-Type: text/plain; charset="UTF-8" Sender: linux-wireless-owner@vger.kernel.org List-ID: 2018-06-14 9:50 GMT+02:00 Arend van Spriel : > On 6/13/2018 5:10 PM, Toke H=C3=B8iland-J=C3=B8rgensen wrote: >> >> Tamizh Chelvam Raja writes: >> >>>> This patchsets introduced new NL command and api to support >>>> configuring txrate threshold for the connected stations and api to >>>> notify userspace application upon crossing the configured txrate >>>> threshold. >>>> This will be useful for the application which requires station's >>>> current capability change information. >>> >>> >>> What is the intended use case? Asking mostly out of curiosity :) >> >> >>> [Tamizh] This is to monitor txrate change for a station. By notifying >>> userspace when the txrate for a station goes out of configured >>> threshold, It can take steering decisions on the particular station. >> Do we really need kernel notification for that? You can simple monitor all this information same way iw station dump show. As a metric use tx/rx bitrate, signal or even expected throughput. Maybe small patch that will average tx/rx bitrate for few seconds (additional fields in station dump) could be helpful here. BR Janusz >> >> Yeah, I got that part. I was curious as to what (userspace) application >> you were planning to use this for? I.e., what kind of steering >> decisions? :) > > > It sounds like network initiated handover as opposed to station roaming. > Suspect the user-space application referred to here is a proprietary > application. At plumbers conf I attended a couple of years ago there was = an > idea to have a network management application controlling multiple hostap= d > instances for this type of functionality, but not sure if that project ev= er > got of the ground. > > Regards, > Arend > --=20 Janusz Dziedzic