TononixOS/ubports_kernel_google_msm
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

mac80211: add U-APSD client support

Browse Source 
Add Unscheduled Automatic Power-Save Delivery (U-APSD) client support. The
idea is that the data frames from the client trigger AP to send the buffered
frames with ACs which have U-APSD enabled. This decreases latency and makes it
possible to save even more power.

Driver needs to use IEEE80211_HW_UAPSD to enable the feature. The current
implementation assumes that firmware takes care of the wakeup and
hardware needing IEEE80211_HW_PS_NULLFUNC_STACK is not yet supported.

Tested with wl1251 on a Nokia N900 and Cisco Aironet 1231G AP and running
various test traffic with ping.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Kalle Valo
2010-01-12 10:42:31 +02:00
committed by John W. Linville
parent 2d46d7c121
commit ab13315af9
9 changed files with 106 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
include/net/mac80211.h
View File

@@ -113,6 +113,7 @@ struct ieee80211_tx_queue_params {
u16 cw_min;
u16 cw_max;
u8 aifs;
bool uapsd;
};
/**
@@ -929,6 +930,11 @@ enum ieee80211_tkip_key_type {
* Hardware supports dynamic spatial multiplexing powersave,
* ie. can turn off all but one chain and then wake the rest
* up as required after, for example, rts/cts handshake.
*
* @IEEE80211_HW_SUPPORTS_UAPSD:
* Hardware supports Unscheduled Automatic Power Save Delivery
* (U-APSD) in managed mode. The mode is configured with
* conf_tx() operation.
*/
enum ieee80211_hw_flags {
IEEE80211_HW_HAS_RATE_CONTROL = 1<<0,
@@ -948,6 +954,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_BEACON_FILTER = 1<<14,
IEEE80211_HW_SUPPORTS_STATIC_SMPS = 1<<15,
IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS = 1<<16,
IEEE80211_HW_SUPPORTS_UAPSD = 1<<17,
};
/**