tree 07dc845cc308d9a4b721bf59605217bc884f01b1
parent 2543a0c4c0fde46f9f206cec1e1cf951a2a63a66
author Christian Lamparter <chunkeey@web.de> 1244257643 +0200
committer John W. Linville <linville@tuxdriver.com> 1244654874 -0400

ar9170: xmit code revamp

This patch is a back-port from aggregation testing code.

In the past, we didn't limit the amount of active tx urbs.
However, ar9170 only has a limited buffer reserved for
pending data frames.

This wasn't much of a problem with the slower 802.11b/g.
We simply stopped the full queue and moved on to something different
in the mean time. But - as you guessed it -  this simple approach
stands in way for a decent aggregation implementation.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>