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Date:      Fri, 15 Feb 2013 21:40:23 -0700
From:      PseudoCylon <moonlightakkiy@yahoo.ca>
To:        Adrian Chadd <adrian@freebsd.org>
Cc:        freebsd-wireless@freebsd.org
Subject:   Re: negotiating HT params at assoc in sta mode
Message-ID:  <CAFZ_MY%2BrU7dqqQxhc8vey7iKuv%2BmmpFiVqb5cWmm%2BT20nNgX_g@mail.gmail.com>
In-Reply-To: <CAJ-VmokXVtzWLHEA=k0Fps7cRYFu%2BA82zk0gt4Y=iZsUyF=Wzg@mail.gmail.com>
References:  <CAFZ_MYJqKDRjWMZk%2BuA8ciLSi-W0U6_=gdV4FRKhz%2Bqb6o7qEw@mail.gmail.com> <CAJ-VmonO2Fh1ziVo25Z=BxNHoOzW73TF4LycbQk8ZjL6z=_G=g@mail.gmail.com> <CAFZ_MY%2BQQnG2HG9j8kQDGZbLZREuFB4u_RvBsD_o-sccijGFyg@mail.gmail.com> <CAJ-VmokXVtzWLHEA=k0Fps7cRYFu%2BA82zk0gt4Y=iZsUyF=Wzg@mail.gmail.com>

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On Fri, Feb 15, 2013 at 8:54 PM, Adrian Chadd <adrian@freebsd.org> wrote:
> On 15 February 2013 18:21, PseudoCylon <moonlightakkiy@yahoo.ca> wrote:
>> On Fri, Feb 15, 2013 at 6:20 PM, Adrian Chadd <adrian@freebsd.org> wrote:
>>> Hm, that sounds right, what's the code doing wrong?
>>
>> Currently, it seems the sta sends back ht params the ap included in a
>> PROBE_RESP packet. So, the ap could send ampdu packets bigger (in
>> byte) than the sta can handle or packet gaps are different from the
>> sta wants after ba session is created. (During ba session negotiation,
>> these params are not exchanged, only window sizes (frame count), seq
>> #, and token.)
>
> Right. yes, we should be negotiating the ampdu density to be the
> maximum of what the AP and STA can associate.
>
> Same deal with IBSS peers (and mesh peers too, eventually.)

Yes. But because of this test
http://fxr.watson.org/fxr/source/net80211/ieee80211_ht.c#L2649
only nodes in sta mode are affected.


AK

>
>
>
> Adrian



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