diff options
| author | Luis R. Rodriguez <lrodriguez@atheros.com> | 2009-07-16 10:05:41 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-07-24 15:05:16 -0400 |
| commit | 4c6d4f5c33fbe19b134c1af43af166fee79eb986 (patch) | |
| tree | 789bd7f9c049ea9c57ad8f4826df6bcad3774ade /net/mac80211/rc80211_minstrel.c | |
| parent | 943ab70f6aebfdc0005ef7e58ae982e9ec22224b (diff) | |
mac80211: add helper for management / no-ack frame rate decision
All current rate control algorithms agree to send management and no-ack
frames at the lowest rate. They also agree to do this when sta
and the private rate control data is NULL. We add a hlper to mac80211
for this and simplify the rate control algorithm code.
Developers wishing to make enhancements to rate control algorithms
are for broadcast/multicast can opt to not use this in their
gate_rate() mac80211 callback.
Cc: Zhu Yi <yi.zhu@intel.com>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Cc: ipw3945-devel@lists.sourceforge.net
Cc: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Cc: Derek Smithies <derek@indranet.co.nz>
Cc: Chittajit Mitra <Chittajit.Mitra@Atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/rc80211_minstrel.c')
| -rw-r--r-- | net/mac80211/rc80211_minstrel.c | 22 |
1 files changed, 1 insertions, 21 deletions
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c index 5bdce0c951dd..7c5142988bbb 100644 --- a/net/mac80211/rc80211_minstrel.c +++ b/net/mac80211/rc80211_minstrel.c @@ -70,19 +70,6 @@ rix_to_ndx(struct minstrel_sta_info *mi, int rix) return i; } -static inline bool -use_low_rate(struct sk_buff *skb) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - __le16 fc; - - fc = hdr->frame_control; - - return ((info->flags & IEEE80211_TX_CTL_NO_ACK) || !ieee80211_is_data(fc)); -} - - static void minstrel_update_stats(struct minstrel_priv *mp, struct minstrel_sta_info *mi) { @@ -231,7 +218,6 @@ minstrel_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta, struct ieee80211_tx_rate_control *txrc) { struct sk_buff *skb = txrc->skb; - struct ieee80211_supported_band *sband = txrc->sband; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct minstrel_sta_info *mi = priv_sta; struct minstrel_priv *mp = priv; @@ -244,14 +230,8 @@ minstrel_get_rate(void *priv, struct ieee80211_sta *sta, int mrr_ndx[3]; int sample_rate; - if (!sta || !mi || use_low_rate(skb)) { - ar[0].idx = rate_lowest_index(sband, sta); - if (info->flags & IEEE80211_TX_CTL_NO_ACK) - ar[0].count = 1; - else - ar[0].count = mp->max_retry; + if (rate_control_send_low(sta, priv_sta, txrc)) return; - } mrr = mp->has_mrr && !txrc->rts && !txrc->bss_conf->use_cts_prot; |