Re: [RFC] mac80211: Change BA timeout

[Johannes Berg <johannes@sipsolutions.net>]

On Tue, 2010-12-14 at 13:49 +0530, Sujith wrote:
> Johannes Berg wrote:
> > On Tue, 2010-12-14 at 13:14 +0530, Sujith wrote:
> > > The BlockAck session timout value is currently an arbitrary 5000.
> > > This results in BA sessions being created and torn down incessantly
> > > when mac80211 is used with a driver (say ath9k) in AP mode.
> > > 
> > > The 802.11 standard doesn't specify any default value for the timeout field.
> > > And there is no benefit to be gained by tearing down BA sessions and
> > > recreating them. The current value of 5000 doesn't cause any problems,
> > > but it is hard to find an AP/STA in the field that uses a non-zero timeout.
> > 
> > Please make it configurable in the request API. Each session consumes
> > one of a very limited number of hardware queues on iwlwifi, and once we
> > go to having multiple connected stations to it as an AP, it would be
> > good to time out idle sessions.
> 
> Something like this ?

[snip]

yeah, looks good, thanks

johannes