openwrt/package/kernel/mac80211/patches/subsys/323-mac80211-unify-802.3-offload-and-802.11-tx-status-co.patch

From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 17 Aug 2020 13:54:19 +0200
Subject: [PATCH] mac80211: unify 802.3 (offload) and 802.11 tx status
 codepath

Make ieee80211_tx_status_8023 call ieee80211_tx_status_ext, similar to
ieee80211_tx_status.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -903,7 +903,6 @@ static void __ieee80211_tx_status(struct
 	struct ieee80211_bar *bar;
 	int shift = 0;
 	int tid = IEEE80211_NUM_TIDS;
-	u16 tx_time_est;
 
 	sband = local->hw.wiphy->bands[info->band];
 	fc = hdr->frame_control;
@@ -996,17 +995,6 @@ static void __ieee80211_tx_status(struct
 		    ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS))
 			ieee80211_sta_tx_notify(sta->sdata, (void *) skb->data,
 						acked, info->status.tx_time);
-
-		if ((tx_time_est = ieee80211_info_get_tx_time_est(info)) > 0) {
-			/* Do this here to avoid the expensive lookup of the sta
-			 * in ieee80211_report_used_skb().
-			 */
-			ieee80211_sta_update_pending_airtime(local, sta,
-							     skb_get_queue_mapping(skb),
-							     tx_time_est,
-							     true);
-			ieee80211_info_set_tx_time_est(info, 0);
-		}
 	}
 
 	/* SNMP counters
@@ -1102,9 +1090,11 @@ void ieee80211_tx_status_ext(struct ieee
 	struct ieee80211_tx_info *info = status->info;
 	struct ieee80211_sta *pubsta = status->sta;
 	struct ieee80211_supported_band *sband;
-	struct sta_info *sta;
+	struct sk_buff *skb = status->skb;
+	struct sta_info *sta = NULL;
 	int rates_idx, retry_count;
 	bool acked, noack_success;
+	u16 tx_time_est;
 
 	if (pubsta) {
 		sta = container_of(pubsta, struct sta_info, sta);
@@ -1156,7 +1146,18 @@ void ieee80211_tx_status_ext(struct ieee
 			ieee80211s_update_metric(local, sta, status);
 	}
 
-	if (status->skb)
+	if (skb && (tx_time_est = ieee80211_info_get_tx_time_est(info)) > 0) {
+		/* Do this here to avoid the expensive lookup of the sta
+		 * in ieee80211_report_used_skb().
+		 */
+		ieee80211_sta_update_pending_airtime(local, sta,
+						     skb_get_queue_mapping(skb),
+						     tx_time_est,
+						     true);
+		ieee80211_info_set_tx_time_est(info, 0);
+	}
+
+	if (skb && !(info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP))
 		return __ieee80211_tx_status(hw, status, rates_idx,
 					     retry_count);
 
@@ -1171,6 +1172,12 @@ void ieee80211_tx_status_ext(struct ieee
 	} else {
 		I802_DEBUG_INC(local->dot11FailedCount);
 	}
+
+	if (!skb)
+		return;
+
+	ieee80211_report_used_skb(local, skb, false);
+	dev_kfree_skb(skb);
 }
 EXPORT_SYMBOL(ieee80211_tx_status_ext);
 
@@ -1197,66 +1204,23 @@ void ieee80211_tx_status_8023(struct iee
 			      struct ieee80211_vif *vif,
 			      struct sk_buff *skb)
 {
-	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_sub_if_data *sdata;
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_tx_status status = {
+		.skb = skb,
+		.info = IEEE80211_SKB_CB(skb),
+	};
 	struct sta_info *sta;
-	int retry_count;
-	int rates_idx;
-	bool acked;
 
 	sdata = vif_to_sdata(vif);
 
-	acked = info->flags & IEEE80211_TX_STAT_ACK;
-	rates_idx = ieee80211_tx_get_rates(hw, info, &retry_count);
-
 	rcu_read_lock();
 
-	if (ieee80211_lookup_ra_sta(sdata, skb, &sta))
-		goto counters_update;
-
-	if (IS_ERR(sta))
-		goto counters_update;
-
-	if (!acked)
-		sta->status_stats.retry_failed++;
-
-	if (rates_idx != -1)
-		sta->tx_stats.last_rate = info->status.rates[rates_idx];
-
-	sta->status_stats.retry_count += retry_count;
-
-	if (ieee80211_hw_check(hw, REPORTS_TX_ACK_STATUS)) {
-		sta->status_stats.last_ack = jiffies;
-		if (info->flags & IEEE80211_TX_STAT_ACK) {
-			if (sta->status_stats.lost_packets)
-				sta->status_stats.lost_packets = 0;
+	if (!ieee80211_lookup_ra_sta(sdata, skb, &sta) && !IS_ERR(sta))
+		status.sta = &sta->sta;
 
-			sta->status_stats.last_pkt_time = jiffies;
-		} else {
-			ieee80211_lost_packet(sta, info);
-		}
-	}
+	ieee80211_tx_status_ext(hw, &status);
 
-counters_update:
 	rcu_read_unlock();
-	ieee80211_led_tx(local);
-
-	if (!(info->flags & IEEE80211_TX_STAT_ACK) &&
-	    !(info->flags & IEEE80211_TX_STAT_NOACK_TRANSMITTED))
-		goto skip_stats_update;
-
-	I802_DEBUG_INC(local->dot11TransmittedFrameCount);
-	if (is_multicast_ether_addr(skb->data))
-		I802_DEBUG_INC(local->dot11MulticastTransmittedFrameCount);
-	if (retry_count > 0)
-		I802_DEBUG_INC(local->dot11RetryCount);
-	if (retry_count > 1)
-		I802_DEBUG_INC(local->dot11MultipleRetryCount);
-
-skip_stats_update:
-	ieee80211_report_used_skb(local, skb, false);
-	dev_kfree_skb(skb);
 }
 EXPORT_SYMBOL(ieee80211_tx_status_8023);