diff mbox series

[v4,11/14] mac80211: support using ieee80211_tx_status_ext to free skbs without status info

Message ID 20200908123702.88454-12-nbd@nbd.name (mailing list archive)
State Accepted
Delegated to: Johannes Berg
Headers show
Series mac80211 encapsulation offload / performance patches | expand

Commit Message

Felix Fietkau Sept. 8, 2020, 12:36 p.m. UTC 
For encap-offloaded packets, ieee80211_free_txskb cannot be used, since it
does not have the vif pointer.
Using ieee80211_tx_status_ext for this purpose has the advantage of being able
avoid an extra station lookup for AQL

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 net/mac80211/status.c | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

Comments

Johannes Berg Sept. 18, 2020, 10:31 a.m. UTC | #1 
On Tue, 2020-09-08 at 14:36 +0200, Felix Fietkau wrote:
> For encap-offloaded packets, ieee80211_free_txskb cannot be used, since it
> does not have the vif pointer.
> Using ieee80211_tx_status_ext for this purpose has the advantage of being able
> avoid an extra station lookup for AQL
> 
> Signed-off-by: Felix Fietkau <nbd@nbd.name>
> ---
>  net/mac80211/status.c | 32 +++++++++++++++++++-------------
>  1 file changed, 19 insertions(+), 13 deletions(-)
> 
> diff --git a/net/mac80211/status.c b/net/mac80211/status.c
> index ac4d988556b0..a3543c3dbd3d 100644
> --- a/net/mac80211/status.c
> +++ b/net/mac80211/status.c
> @@ -1087,6 +1087,24 @@ void ieee80211_tx_status_ext(struct ieee80211_hw *hw,
>  	bool acked, noack_success;
>  	u16 tx_time_est;
>  
> +	if (pubsta)
> +		sta = container_of(pubsta, struct sta_info, sta);

There were some conflicts, e.g. this was already in place ...

Please check once I push it out.

johannes
diff mbox series

Patch

diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index ac4d988556b0..a3543c3dbd3d 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -1087,6 +1087,24 @@  void ieee80211_tx_status_ext(struct ieee80211_hw *hw,
 	bool acked, noack_success;
 	u16 tx_time_est;
 
+	if (pubsta)
+		sta = container_of(pubsta, struct sta_info, sta);
+
+	if (skb && (tx_time_est =
+		    ieee80211_info_get_tx_time_est(IEEE80211_SKB_CB(skb))) > 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(IEEE80211_SKB_CB(skb), 0);
+	}
+
+	if (!status->info)
+		goto free;
+
 	rates_idx = ieee80211_tx_get_rates(hw, info, &retry_count);
 
 	sband = hw->wiphy->bands[info->band];
@@ -1095,8 +1113,6 @@  void ieee80211_tx_status_ext(struct ieee80211_hw *hw,
 	noack_success = !!(info->flags & IEEE80211_TX_STAT_NOACK_TRANSMITTED);
 
 	if (pubsta) {
-		sta = container_of(pubsta, struct sta_info, sta);
-
 		if (!acked && !noack_success)
 			sta->status_stats.retry_failed++;
 		sta->status_stats.retry_count += retry_count;
@@ -1132,17 +1148,6 @@  void ieee80211_tx_status_ext(struct ieee80211_hw *hw,
 			ieee80211s_update_metric(local, sta, status);
 	}
 
-	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);
@@ -1159,6 +1164,7 @@  void ieee80211_tx_status_ext(struct ieee80211_hw *hw,
 		I802_DEBUG_INC(local->dot11FailedCount);
 	}
 
+free:
 	if (!skb)
 		return;