Re: [RFC] mac80211: reestablish mis-configured existing Rx BA sessions

[Arik Nemtsov <arik@wizery.com>]

On Thu, May 5, 2011 at 02:17, Arik Nemtsov <arik@wizery.com> wrote:
> On Thu, May 5, 2011 at 02:15, Arik Nemtsov <arik@wizery.com> wrote:
>>
>>
>> On Wed, May 4, 2011 at 19:50, Johannes Berg <johannes@sipsolutions.net>
>> wrote:
>>>
>>> On Tue, 2011-05-03 at 12:12 +0300, Arik Nemtsov wrote:
>>> > When forming a Rx BA session, sometimes the ADDBA response gets lost.
>>> > This leads to a situation where the session is configured locally, but
>>> > doesn't exist on the remote side. Subsequent ADDBA requests are declined
>>> > by mac80211.
>>> >
>>> > Fix this by assuming the session state of the initiator is the correct
>>> > one. When receiving an unexpected ADDBA request on a TID with an active
>>> > Rx BA session, delete the existing one and establish a new session.
>>>
>>> I thought about this for a while but I don't really have an opinion I
>>> think. Maybe the behaviour could be avoided by checking the ack status,
>>> but that wouldn't be good enough for devices that don't have that...
>>
>> It helped me with at least two APs (when I put them far enough from the
>> station). I guess it won't hurt anything.
>> Checking the ack won't do any actual good - if the AP doesn't send another
>> ADDBA request we won't have a session up anyway. It just saves a little
>> memory on the reorder buffer.
>> Arik
>
> [replying again with a plain text email]
>

ping?