K 10
svn:author
V 6
adrian
K 8
svn:date
V 27
2011-08-05T17:15:46.987089Z
K 7
svn:log
V 883
Begin fleshing out BAW tracking.

baw_head/baw_tail implement a sliding window. tx_buf is an array of active
frames inside the BAW.

Frames that are being TXed are added to the relevant spot in tx_buf, with the
baw_head/baw_tail sliding window updated.

Frames that have been transmitted (successfully or not) are removed from the
tx_buf array, and txa_start (the BAW left edge) is then updated.

This is in no way complete and is missing a few things, notably keeping the
BAW up to date when flushing a TID/node, or when a TID/node aggregation
session is being torn down. There's no software retransmit, and there's
currently no support yet for sending a BAR when the TX window has been
forcibly moved after a TX failure.

There's also a "gap" between the advertised BAW start during ADDBA and the
first sequence number that is queued as an aggregate frame.

Obtained from:	Atheros

END