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authorJohannes Berg <johannes.berg@intel.com>2016-03-31 20:02:05 +0300
committerJohannes Berg <johannes.berg@intel.com>2016-04-06 14:18:15 +0300
commit0be6ed133835b1a5e492f86099ce372b5a2e2296 (patch)
tree22100670875711abc06de00bb6cb05eeca4a2526 /net
parent8ebaa5b0a791631dddbb3a215b342fabb2a5307b (diff)
downloadlinux-0be6ed133835b1a5e492f86099ce372b5a2e2296.tar.xz
mac80211: move averaged values out of rx_stats
Move the averaged values out of rx_stats and into rx_stats_avg, to cleanly split them out. The averaged ones cannot be supported for parallel RX in a per-CPU fashion, while the other values can be collected per CPU and then combined/selected when needed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/mesh_plink.c2
-rw-r--r--net/mac80211/rx.c4
-rw-r--r--net/mac80211/sta_info.c10
-rw-r--r--net/mac80211/sta_info.h6
4 files changed, 12 insertions, 10 deletions
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index ecfba8ad29e4..563bea050383 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -61,7 +61,7 @@ static bool rssi_threshold_check(struct ieee80211_sub_if_data *sdata,
s32 rssi_threshold = sdata->u.mesh.mshcfg.rssi_threshold;
return rssi_threshold == 0 ||
(sta &&
- (s8)-ewma_signal_read(&sta->rx_stats.avg_signal) >
+ (s8)-ewma_signal_read(&sta->rx_stats_avg.signal) >
rssi_threshold);
}
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 570ae3d03ae1..d14c66df9e86 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1455,7 +1455,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
sta->rx_stats.bytes += rx->skb->len;
if (!(status->flag & RX_FLAG_NO_SIGNAL_VAL)) {
sta->rx_stats.last_signal = status->signal;
- ewma_signal_add(&sta->rx_stats.avg_signal, -status->signal);
+ ewma_signal_add(&sta->rx_stats_avg.signal, -status->signal);
}
if (status->chains) {
@@ -1467,7 +1467,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
continue;
sta->rx_stats.chain_signal_last[i] = signal;
- ewma_signal_add(&sta->rx_stats.chain_signal_avg[i],
+ ewma_signal_add(&sta->rx_stats_avg.chain_signal[i],
-signal);
}
}
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 01e070c6e713..4f19505f3757 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -341,9 +341,9 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
sta->reserved_tid = IEEE80211_TID_UNRESERVED;
sta->last_connected = ktime_get_seconds();
- ewma_signal_init(&sta->rx_stats.avg_signal);
- for (i = 0; i < ARRAY_SIZE(sta->rx_stats.chain_signal_avg); i++)
- ewma_signal_init(&sta->rx_stats.chain_signal_avg[i]);
+ ewma_signal_init(&sta->rx_stats_avg.signal);
+ for (i = 0; i < ARRAY_SIZE(sta->rx_stats_avg.chain_signal); i++)
+ ewma_signal_init(&sta->rx_stats_avg.chain_signal[i]);
if (local->ops->wake_tx_queue) {
void *txq_data;
@@ -2056,7 +2056,7 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
if (!(sinfo->filled & BIT(NL80211_STA_INFO_SIGNAL_AVG))) {
sinfo->signal_avg =
- -ewma_signal_read(&sta->rx_stats.avg_signal);
+ -ewma_signal_read(&sta->rx_stats_avg.signal);
sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG);
}
}
@@ -2072,7 +2072,7 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
sinfo->chain_signal[i] =
sta->rx_stats.chain_signal_last[i];
sinfo->chain_signal_avg[i] =
- -ewma_signal_read(&sta->rx_stats.chain_signal_avg[i]);
+ -ewma_signal_read(&sta->rx_stats_avg.chain_signal[i]);
}
}
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 4e1ed6f26484..93dc567e6100 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -450,16 +450,18 @@ struct sta_info {
unsigned long fragments;
unsigned long dropped;
int last_signal;
- struct ewma_signal avg_signal;
u8 chains;
s8 chain_signal_last[IEEE80211_MAX_CHAINS];
- struct ewma_signal chain_signal_avg[IEEE80211_MAX_CHAINS];
int last_rate_idx;
u32 last_rate_flag;
u32 last_rate_vht_flag;
u8 last_rate_vht_nss;
u64 msdu[IEEE80211_NUM_TIDS + 1];
} rx_stats;
+ struct {
+ struct ewma_signal signal;
+ struct ewma_signal chain_signal[IEEE80211_MAX_CHAINS];
+ } rx_stats_avg;
/* Plus 1 for non-QoS frames */
__le16 last_seq_ctrl[IEEE80211_NUM_TIDS + 1];