Return-path: Received: from sabertooth02.qualcomm.com ([65.197.215.38]:8814 "EHLO sabertooth02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750949AbbIAFXJ (ORCPT ); Tue, 1 Sep 2015 01:23:09 -0400 Subject: Re: [PATCH] ath10k: Drop probe responses when too many are queued To: Ben Greear , References: <1441019095-2364-1-git-send-email-nataraja@qti.qualcomm.com> <55E48151.9080609@candelatech.com> CC: , From: "Natarajan, Vivekanandan" Message-ID: <55E53619.5080402@qti.qualcomm.com> (sfid-20150901_072313_386508_D88D6863) Date: Tue, 1 Sep 2015 10:52:33 +0530 MIME-Version: 1.0 In-Reply-To: <55E48151.9080609@candelatech.com> Content-Type: text/plain; charset="windows-1252"; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 8/31/2015 10:01 PM, Ben Greear wrote: > > > On 08/31/2015 04:04 AM, Vivek Natarajan wrote: >> In a noisy environment, when multiple interfaces are created, >> the management tx descriptors are fully occupied by the probe >> responses from all the interfaces. This prevents a new station >> from a successful association. >> >> Fix this by limiting the probe responses when the specified >> threshold limit is reached. > > Is this useful when firmware supports management-tx over HTT (instead > of WMI)? Yes, it is applicable for HTT path. The mgmt frames through the HTT path use the tx descriptors in the firmware. This patch just prevents its overuse by probe response frames. Vivek.