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Commit 0be6ed13 authored by Johannes Berg's avatar Johannes Berg
Browse files

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: default avatarJohannes Berg <johannes.berg@intel.com>
parent 8ebaa5b0

net/mac80211/mesh_plink.c

+1 −1
Original line number Diff line number Diff line
@@ -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);

}

net/mac80211/rx.c

+2 −2
Original line number Diff line number Diff line
@@ -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);

		}

	}

net/mac80211/sta_info.c

+5 −5
Original line number Diff line number Diff line
@@ -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]);

		}

	}

net/mac80211/sta_info.h

+4 −2
Original line number Diff line number Diff line
@@ -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];