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>
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index 5496077..8c053be 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -276,11 +276,9 @@
{
struct sk_buff *skb = txrc->skb;
struct ieee80211_supported_band *sband = txrc->sband;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct rc_pid_sta_info *spinfo = priv_sta;
int rateidx;
- __le16 fc;
if (txrc->rts)
info->control.rates[0].count =
@@ -290,15 +288,8 @@
txrc->hw->conf.short_frame_max_tx_count;
/* Send management frames and NO_ACK data using lowest rate. */
- fc = hdr->frame_control;
- if (!sta || !spinfo || !ieee80211_is_data(fc) ||
- info->flags & IEEE80211_TX_CTL_NO_ACK) {
- info->control.rates[0].idx = rate_lowest_index(sband, sta);
- if (info->flags & IEEE80211_TX_CTL_NO_ACK)
- info->control.rates[0].count = 1;
-
+ if (rate_control_send_low(sta, priv_sta, txrc))
return;
- }
rateidx = spinfo->txrate_idx;