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From: Krishna Chaitanya <chaitanya.mgit@gmail.com>
Date: Thu, 2 Jul 2015 17:19:45 +0530
Message-ID: <CABPxzYLP=GUVL6BAGYRn0Btu5pFRVNiBKrvifO-FS2jmLa2kUw@mail.gmail.com> (sfid-20150702_135010_652884_CA7183BB)
Subject: Re: AP + P2P_GO multichan tests with intel7260 as a P2P_CLIENT -
 direct probe issue
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Janusz Dziedzic <janusz.dziedzic@tieto.com>,
	"Peer, Ilan" <ilan.peer@intel.com>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Content-Type: text/plain; charset=UTF-8
Sender: linux-wireless-owner@vger.kernel.org

On Thu, Jul 2, 2015 at 5:08 PM, Johannes Berg <johannes@sipsolutions.net> wrote:
> On Thu, 2015-07-02 at 14:32 +0530, Krishna Chaitanya wrote:
>>
>> We have also found another issue with direct probe.
>> Some of the AP's are not setting sequence number in the probe
>> responses
>> so in case of a retry they are dropped as duplicate by rx_h_check
>> causing direct probe to fail.
>
> I don't quite see how that can be an issue, since the RETRY bit
> shouldn't be set??

If retry bit is not set, then it works, but in a noisy channel 2.4GHz
we are seeing high retries causing direct probes to fail 90% of the
time.

The AP in case is Marvel AP RD88W8787 (WFA Testbed).