Here's my suggestion for how to implement ps-poll in mac80211. Also
this fixes power save again for p54/stlc45xx, but most probably breaks
ath9k. I would like to hear opinions from others, especially from
Atheros. How does ath9k cope with the ps-poll method? Also I highly
recommend to get hardware waking up for multicast frames, it would be
a lot easier and reliable that way.
Open question is that should power save be disabled whenever mac80211
is ps-polling the frames. For example, p54/stlc45xx does not require to
disable power save in that case, it just stays awake long enough to
receive the data frame from the AP. So I did not disable power save
mode in this case, but I would like to hear comments what other
hardware needs.
v2:
o RX_CONTINUE after sending ps-poll frame in ieee80211_rx_h_check_more_data()
o remove debug printk
---
Kalle Valo (2):
mac80211: use ps-poll to request frames in power save mode
mac80211: remove multicast check from check_tim()
net/mac80211/ieee80211_i.h | 3 +++
net/mac80211/mlme.c | 51 +++++++++++++++++++++++++++++++++++---------
net/mac80211/rx.c | 34 +++++++++++++++++++++++++++++
3 files changed, 78 insertions(+), 10 deletions(-)
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