[PATCH] wifi: ath10k: Trigger STA disconnect after reconfig complete on hardware restart

From: Youghandhar Chintala <quic_youghand@quicinc.com>
To: <ath10k@lists.infradead.org>
Cc: <linux-wireless@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<quic_mpubbise@quicinc.com>,
	Youghandhar Chintala <quic_youghand@quicinc.com>
Subject: [PATCH] wifi: ath10k: Trigger STA disconnect after reconfig complete on hardware restart
Date: Thu, 18 May 2023 15:45:15 +0530	[thread overview]
Message-ID: <20230518101515.3820-1-quic_youghand@quicinc.com> (raw)

Currently, on WCN3990, the station disconnect after hardware recovery is
not working as expected. This is because of setting the
IEEE80211_SDATA_DISCONNECT_HW_RESTART flag very early in the hardware
recovery process even before the driver invokes ieee80211_hw_restart().
On the contrary, mac80211 expects this flag to be set after
ieee80211_hw_restart() is invoked for it to trigger station disconnect.

Set the IEEE80211_SDATA_DISCONNECT_HW_RESTART flag in
ath10k_reconfig_complete() instead to fix this.

The other targets are not affected by this change, since the hardware
params flag is not set.

Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.2.2.c10-00754-QCAHLSWMTPL-1

Fixes: 2c3fc50591ff ("ath10k: Trigger sta disconnect on hardware restart")
Signed-off-by: Youghandhar Chintala <quic_youghand@quicinc.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 9 ---------
 drivers/net/wireless/ath/ath10k/mac.c  | 8 ++++++++
 2 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 533ed7169e11..6cdb225b7eac 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -2504,7 +2504,6 @@ EXPORT_SYMBOL(ath10k_core_napi_sync_disable);
 static void ath10k_core_restart(struct work_struct *work)
 {
 	struct ath10k *ar = container_of(work, struct ath10k, restart_work);
-	struct ath10k_vif *arvif;
 	int ret;
 
 	set_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags);
@@ -2543,14 +2542,6 @@ static void ath10k_core_restart(struct work_struct *work)
 		ar->state = ATH10K_STATE_RESTARTING;
 		ath10k_halt(ar);
 		ath10k_scan_finish(ar);
-		if (ar->hw_params.hw_restart_disconnect) {
-			list_for_each_entry(arvif, &ar->arvifs, list) {
-				if (arvif->is_up &&
-				    arvif->vdev_type == WMI_VDEV_TYPE_STA)
-					ieee80211_hw_restart_disconnect(arvif->vif);
-			}
-		}
-
 		ieee80211_restart_hw(ar->hw);
 		break;
 	case ATH10K_STATE_OFF:
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 9c4bf2fdbc0f..ab12e3e0c515 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -8109,6 +8109,7 @@ static void ath10k_reconfig_complete(struct ieee80211_hw *hw,
 				     enum ieee80211_reconfig_type reconfig_type)
 {
 	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif;
 
 	if (reconfig_type != IEEE80211_RECONFIG_TYPE_RESTART)
 		return;
@@ -8123,6 +8124,13 @@ static void ath10k_reconfig_complete(struct ieee80211_hw *hw,
 		ar->state = ATH10K_STATE_ON;
 		ieee80211_wake_queues(ar->hw);
 		clear_bit(ATH10K_FLAG_RESTARTING, &ar->dev_flags);
+		if (ar->hw_params.hw_restart_disconnect) {
+			list_for_each_entry(arvif, &ar->arvifs, list) {
+				if (arvif->is_up && arvif->vdev_type == WMI_VDEV_TYPE_STA)
+					ieee80211_hw_restart_disconnect(arvif->vif);
+				}
+		}
+
 	}
 
 	mutex_unlock(&ar->conf_mutex);
-- 
2.38.0

