xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

cfg80211/mac80211: Use more generic bitrate mask for rate control

Browse Source 
Extend struct cfg80211_bitrate_mask to actually use a bitfield mask
instead of just a single fixed or maximum rate index. This change
itself does not modify the behavior (except for debugfs files), but it
prepares cfg80211 and mac80211 for a new nl80211 command for setting
which rates can be used in TX rate control.

Since frames are now going through the rate control algorithm
unconditionally, the internal IEEE80211_TX_INTFL_RCALGO flag can now
be removed. The RC implementations can use the rate_idx_mask value to
optimize their behavior if only a single rate is enabled.

The old max_rate_idx in struct ieee80211_tx_rate_control is maintained
(but commented as deprecated) for backwards compatibility with existing
RC implementations. Once these implementations have been updated to
use the more generic rate_idx_mask, the max_rate_idx value can be
removed.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jouni Malinen
2010-01-06 13:09:08 +02:00
committed by John W. Linville
parent e00cfce0cb
commit 37eb0b164c
10 changed files with 122 additions and 79 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
net/mac80211/rate.h
View File

@@ -44,10 +44,7 @@ static inline void rate_control_tx_status(struct ieee80211_local *local,
struct rate_control_ref *ref = local->rate_ctrl;
struct ieee80211_sta *ista = &sta->sta;
void *priv_sta = sta->rate_ctrl_priv;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
if (likely(info->flags & IEEE80211_TX_INTFL_RCALGO))
ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
}