From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from s3.sipsolutions.net ([144.76.43.62]:42990 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727508AbeIEP0R (ORCPT ); Wed, 5 Sep 2018 11:26:17 -0400 Message-ID: <1536144985.3528.7.camel@sipsolutions.net> (sfid-20180905_125638_387926_A072BC02) Subject: Re: [PATCH] mac80211: use non-zero TID only for QoS frames From: Johannes Berg To: Toke =?ISO-8859-1?Q?H=F8iland-J=F8rgensen?= , linux-wireless@vger.kernel.org Cc: Felix Fietkau Date: Wed, 05 Sep 2018 12:56:25 +0200 In-Reply-To: <87d0ts6zeb.fsf@toke.dk> References: <20180905080036.9177-1-johannes@sipsolutions.net> <87in3k6zti.fsf@toke.dk> <1536141045.3528.4.camel@sipsolutions.net> <87d0ts6zeb.fsf@toke.dk> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Wed, 2018-09-05 at 11:56 +0200, Toke Høiland-Jørgensen wrote: > > So basically this gets rid of a corner case that we shouldn't have. > > Either we should decide that using different TXQs is *always* correct > > for non-QoS, or - what I thought - that this isn't worth it, and then we > > should *never* do it. > > Yeah, I agree that this is not worth it. The queue is already > FQ-CoDel'ed, which gives us most of the benefit of QoS anyway :) So do I read that as a tentative ack? :) Felix wasn't really convinced, I think. He also pointed out some drivers use skb->priority without checking anything, but I'm not sure we can really squash all the cases of setting skb priority easily? johannes