K 10
svn:author
V 6
adrian
K 8
svn:date
V 27
2011-08-20T06:08:31.167725Z
K 7
svn:log
V 2068
Another combined diff - partly debugging, partly implementing more
aggregation related stuff.

Debugging/enforcing (which I'll likely remove at some point, or at
least make optional):

* Remove ath_buf's from the aggregate list - ie, blank bf->bf_next -
  when they've been handled and they're being requeued or completed.

* Print out a message ath_tx_default_comp() if the ath_buf in question
  is still on an aggregation list.

* Check whether the number of buffers handled in the aggregate frame
  completion or aggregate frame error functions match the number of
  frames -in- the aggregate buffer list. Print out an error if this
  isn't the case.

Aggregation changes:

* Fill out the rest of the ath_rc_series fields in the ath_buf -
  max4msframelen and the flags fields. This is done after the
  rate control decisions have been made in the (raw, normal) TX
  path. Later on, this will be pushed into the rate control module
  and then, much later on, it'll be pushed into net80211.

* Implement the rest of the ampdu delimiter calculation code.
  The ampdu density figure, negotiated in STA mode and configured
  in hostap mode, is enforced when calculating delimiter counts.
  It uses the "fastest" rate (ie, the first one) to calculate
  how long a frame will be (in bytes) at the given rate/config,
  and then enforces that the configured delimiter count matches
  at least -that- length. If a sub-frame length is smaller than
  the configured mpdudensity, the delimiter count is the
  minimum density, rather than soley based on the frame count.

* Implement a very simple function to return the maximum frame length
  for 4ms, based on the slowest rate. If the rate control returns
  a set of rate series rather than a single one, the aggregate may
  end up being transmitted at the slowest rather than the fastest.

A lot of stuff that has been shoehorned into if_ath_tx_ht.c should
likely live elsewhere, including the HAL and net80211. I'll worry
about where to place all of this once the code is (more) stable.

Obtained from:	Atheros, Linux ath9k

END