[openwrt/openwrt] mac80211: always use mac80211 loss detection

[LEDE Commits]

blocktrron pushed a commit to openwrt/openwrt.git, branch openwrt-23.05:
https://git.openwrt.org/e962f866b2b7e9d413224b84fa90de7e2a1b9225

commit e962f866b2b7e9d413224b84fa90de7e2a1b9225
Author: David Bauer <mail at david-bauer.net>
AuthorDate: Wed May 17 12:04:00 2023 +0200

    mac80211: always use mac80211 loss detection
    
    ath10k does not report excessive loss in case of broken block-ack
    sessions. The loss is communicated to the host-os, but ath10k does not
    trigger a low-ack events by itself.
    
    The mac80211 framework for loss detection however detects this
    circumstance well in case of ath10k. So use it regardless of ath10k's
    own loss detection mechanism.
    
    Signed-off-by: David Bauer <mail at david-bauer.net>
    (cherry picked from commit ed816f6ba8b5e3df609e5fc53f7bcb09bdaa16be)
---
 ...c80211-always-use-mac80211-loss-detection.patch | 36 ++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/package/kernel/mac80211/patches/subsys/340-mac80211-always-use-mac80211-loss-detection.patch b/package/kernel/mac80211/patches/subsys/340-mac80211-always-use-mac80211-loss-detection.patch
new file mode 100644
index 0000000000..e084773fd9
--- /dev/null
+++ b/package/kernel/mac80211/patches/subsys/340-mac80211-always-use-mac80211-loss-detection.patch
@@ -0,0 +1,36 @@
+From cdf461888f900c3a149b10a04d72b4a590ecdec3 Mon Sep 17 00:00:00 2001
+From: David Bauer <mail at david-bauer.net>
+Date: Tue, 16 May 2023 23:11:32 +0200
+Subject: [PATCH] mac80211: always use mac80211 loss detection
+
+ath10k does not report excessive loss in case of broken block-ack
+sessions. The loss is communicated to the host-os, but ath10k does not
+trigger a low-ack events by itself.
+
+The mac80211 framework for loss detection however detects this
+circumstance well in case of ath10k. So use it regardless of ath10k's
+own loss detection mechanism.
+
+Patching this in mac80211 does allow this hack to be used with any
+flavor of ath10k/ath11k.
+
+Signed-off-by: David Bauer <mail at david-bauer.net>
+---
+ net/mac80211/status.c | 6 ------
+ 1 file changed, 6 deletions(-)
+
+--- a/net/mac80211/status.c
++++ b/net/mac80211/status.c
+@@ -794,12 +794,6 @@ static void ieee80211_lost_packet(struct
+ 	unsigned long pkt_time = STA_LOST_PKT_TIME;
+ 	unsigned int pkt_thr = STA_LOST_PKT_THRESHOLD;
+ 
+-	/* If driver relies on its own algorithm for station kickout, skip
+-	 * mac80211 packet loss mechanism.
+-	 */
+-	if (ieee80211_hw_check(&sta->local->hw, REPORTS_LOW_ACK))
+-		return;
+-
+ 	/* This packet was aggregated but doesn't carry status info */
+ 	if ((info->flags & IEEE80211_TX_CTL_AMPDU) &&
+ 	    !(info->flags & IEEE80211_TX_STAT_AMPDU))