[PATCH] wcn36xx: initiate TX BA sessions

[Bob Copeland]

On Mon, Mar 10, 2014 at 09:11:01AM +0000, Eugene Krasnikov wrote:
> I do not think calling wcn36xx_tx_start_ampdu from a DATA path is a
> good idea. I would suggest to move it to a separate work. What do you
> think?

I can rework it to do so, but it's not quite as simple, e.g we would at
least need to make sure the sta is still around, whereas in the tx path
we know that it's still valid.

I took a look at ieee80211_start_tx_ba_session() - it does an
allocation, but that only happens the (hopefully rare) times we
establish a session.  The actual work of sending frames etc goes
on the iface work queue already.

>From a quick survey of existing users, it looks like ath9k htc
does it directly in tx path, and every other driver does it from
rate controller (tx status path).

-- 
Bob Copeland %% www.bobcopeland.com