mac80211: add fixed_rate management to minstrel rc
Add the capability to use a fixed modulation rate to minstrel rate controller
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 8b5f7ef..7fa1b36 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -203,6 +203,15 @@
memcpy(mi->max_tp_rate, tmp_tp_rate, sizeof(mi->max_tp_rate));
mi->max_prob_rate = tmp_prob_rate;
+#ifdef CONFIG_MAC80211_DEBUGFS
+ /* use fixed index if set */
+ if (mp->fixed_rate_idx != -1) {
+ mi->max_tp_rate[0] = mp->fixed_rate_idx;
+ mi->max_tp_rate[1] = mp->fixed_rate_idx;
+ mi->max_prob_rate = mp->fixed_rate_idx;
+ }
+#endif
+
/* Reset update timer */
mi->stats_update = jiffies;
@@ -310,6 +319,11 @@
/* increase sum packet counter */
mi->packet_count++;
+#ifdef CONFIG_MAC80211_DEBUGFS
+ if (mp->fixed_rate_idx != -1)
+ return;
+#endif
+
delta = (mi->packet_count * sampling_ratio / 100) -
(mi->sample_count + mi->sample_deferred / 2);