linux-toradex.git/net/mac80211/driver-trace.h, branch v3.4.40

mac80211: rename bss_conf timestamp to last_tsf

2012-03-13T18:54:20+00:00

This value is not really very useful by itself,
yet some drivers (including iwlwifi until I can
figure out what it should do) use it. At least
rename it to "last_tsf" to indicate the meaning
and add a note that it may be really old.

I suspect the value may become useful combined
with the rx_status->mactime, but we don't (yet)
store that value and pass it to the driver.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: remove tx_sync

2012-03-12T18:19:38+00:00

When the station state callback was added, this
was no longer needed in theory. With the iwlwifi
changes to remove use of it landing, we can kill
the entire tx-sync framework again, RIP.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: add sta_state callback

2012-02-06T19:48:24+00:00

(based on Eliad's patch)

Add a callback to notify the low-level driver whenever
the state of a station changes. The driver is only
notified when the station is actually in the mac80211
hash table, not for pre-insert state transitions.

To allow the driver to replace sta_add/remove calls
with this, call extra transitions with the NOTEXIST
state.

This callback can fail, so we need to be careful in
handling it when a station is inserted, particularly
in the IBSS case where we still keep the station entry
around for mac80211 purposes.

Signed-off-by: Eliad Peller 
Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: remove tracing config symbol

2011-11-28T19:44:09+00:00

There's little point in this config symbol, if
tracing is disabled the overhead is negligible
and if you think it's too bad you can always
turn off tracing completely.

Also remove the part where we don't have sparse
check the tracing code -- it seems that it can
now deal with it (or the code changed).

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: allow out-of-band EOSP notification

2011-09-30T19:57:23+00:00

iwlwifi has a separate EOSP notification from
the device, and to make use of that properly
it needs to be passed to mac80211. To be able
to mix with tx_status_irqsafe and rx_irqsafe
it also needs to be an "_irqsafe" version in
the sense that it goes through the tasklet,
the actual flag clearing would be IRQ-safe
but doing it directly would cause reordering
issues.

This is needed in the case of a P2P GO going
into an absence period without transmitting
any frames that should be driver-released as
in this case there's no other way to inform
mac80211 that the service period ended. Note
that for drivers that don't use the _irqsafe
functions another version of this function
will be required.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: explicitly notify drivers of frame release

2011-09-30T19:57:21+00:00

iwlwifi needs to know the number of frames that are
going to be sent to a station while it is asleep so
it can properly handle the uCode blocking of that
station.

Before uAPSD, we got by by telling the device that
a single frame was going to be released whenever we
encountered IEEE80211_TX_CTL_POLL_RESPONSE. With
uAPSD, however, that is no longer possible since
there could be more than a single frame.

To support this model, add a new callback to notify
drivers when frames are going to be released.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: allow releasing driver-buffered frames

2011-09-30T19:57:15+00:00

If there are frames for a station buffered in
the driver, mac80211 announces those in the TIM
IE but there's no way to release them. Add new
API to release such frames and use it when the
station polls for a frame.

Since the API will soon also be used for uAPSD
it is easily extensible.

Note that before this change drivers announcing
driver-buffered frames in the TIM bit actually
will respond to a PS-Poll with a potentially
lower priority frame (if there are any frames
buffered in mac80211), after this patch a driver
that hasn't been changed will no longer respond
at all. This only affects ath9k, which will need
to be fixed to implement the new API.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: save tx params per sdata

2011-09-27T18:34:11+00:00

save and configure tx param per sdata, rather than
per hardware.

Signed-off-by: Eliad Peller 
Signed-off-by: John W. Linville

mac80211: add ieee80211_vif param to tsf functions

2011-09-27T18:27:48+00:00

TSF can be kept per vif.
Add ieee80211_vif param to set/get/reset_tsf, and move
the debugfs entries to the per-vif directory.

Update all the drivers that implement these callbacks.

Signed-off-by: Eliad Peller 
Signed-off-by: John W. Linville

mac80211: sync driver before TX

2011-07-20T19:04:35+00:00

In P2P client mode, the GO (AP) to connect to might
have periods of time where it is not available due
to powersave. To allow the driver to sync with it
and send frames to the GO only when it is available
add a new callback tx_sync (and the corresponding
finish_tx_sync). These callbacks can sleep unlike
the actual TX.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville