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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 8DE6BC43382 for ; Tue, 25 Sep 2018 23:13:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 33B8320867 for ; Tue, 25 Sep 2018 23:13:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 33B8320867 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=candelatech.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-wireless-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726213AbeIZFWw (ORCPT ); Wed, 26 Sep 2018 01:22:52 -0400 Received: from mail2.candelatech.com ([208.74.158.173]:34522 "EHLO mail2.candelatech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726187AbeIZFWv (ORCPT ); Wed, 26 Sep 2018 01:22:51 -0400 Received: from [192.168.100.149] (firewall.candelatech.com [50.251.239.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail2.candelatech.com (Postfix) with ESMTPSA id 35808409E08 for ; Tue, 25 Sep 2018 16:12:57 -0700 (PDT) To: "linux-wireless@vger.kernel.org" From: Ben Greear Subject: How many null-data probes on connection loss? Organization: Candela Technologies Message-ID: <9a1447d9-9a61-dc2d-0101-33c6bdeb946f@candelatech.com> Date: Tue, 25 Sep 2018 16:12:56 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org While testing out some other issue, I noticed that my ath10k system creates several hundred null-data probes when I abruptly down the AP the station is connected to. I guess this is because I use the mac80211 stack to handle the probes, and the firmware then retries each mac80211 probe many times. So, in the case where mac80211 is sending a null-data probe, is the assumption that the driver will try each frame exactly once? Or is several hundred frames expected? I'm guessing the former, but before I go hacking firmware, I thought I would ask... Thanks, Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com