qcawifi: Use timer to schedule work queue for stats process

Use timer to schedule work queue for tx capture stats
process to fix the deauth missing issue in tx capture
when AP is down.

Change-Id: Ie1d1e3fa9f576cd6034fe6035ef933b1e78df99b

dp/wifi3.0/dp_tx_capture.c

@@ -1022,6 +1022,23 @@ void ppdu_desc_dbg_queue_deinit(struct tx_cap_debug_log_info *ptr_log_info)
 	qdf_spinlock_destroy(&ptr_log_info->dbg_log_lock);
 }
 
+/*
+ * dp_tx_capture_work_q_timer_handler()- timer to schedule tx capture
+ * work queue
+ * @arg: pdev Handle
+ *
+ * Return:
+ *
+ */
+static void dp_tx_capture_work_q_timer_handler(void *arg)
+{
+	struct dp_pdev *pdev = (struct dp_pdev *)arg;
+
+	if (pdev->tx_capture.ppdu_stats_queue_depth > 0)
+		qdf_queue_work(0, pdev->tx_capture.ppdu_stats_workqueue,
+			       &pdev->tx_capture.ppdu_stats_work);
+}
+
 /**
  * dp_tx_ppdu_stats_attach - Initialize Tx PPDU stats and enhanced capture
  * @pdev: DP PDEV
@@ -1054,6 +1071,12 @@ void dp_tx_ppdu_stats_attach(struct dp_pdev *pdev)
 	pdev->tx_capture.ppdu_stats_next_sched = 0;
 	pdev->tx_capture.ppdu_stats_defer_queue_depth = 0;
 	pdev->tx_capture.ppdu_dropped = 0;
+
+	qdf_timer_init(NULL, &pdev->tx_capture.work_q_timer,
+			dp_tx_capture_work_q_timer_handler,
+			(void *)pdev,
+			QDF_TIMER_TYPE_WAKE_APPS);
+
 	for (i = 0; i < TXCAP_MAX_TYPE; i++) {
 		for (j = 0; j < TXCAP_MAX_SUBTYPE; j++) {
 			qdf_nbuf_queue_init(
@@ -1103,6 +1126,10 @@ void dp_tx_ppdu_stats_detach(struct dp_pdev *pdev)
 		return;
 
 	ptr_log_info = &pdev->tx_capture.log_info;
+
+	qdf_timer_sync_cancel(&pdev->tx_capture.work_q_timer);
+	qdf_timer_free(&pdev->tx_capture.work_q_timer);
+
 	qdf_flush_workqueue(0, pdev->tx_capture.ppdu_stats_workqueue);
 	qdf_destroy_workqueue(0, pdev->tx_capture.ppdu_stats_workqueue);
 
@@ -3599,6 +3626,7 @@ dp_send_mgmt_ctrl_to_stack(struct dp_pdev *pdev,
 	subtype = (ppdu_desc->frame_ctrl &
 		IEEE80211_FC0_SUBTYPE_MASK) >>
 		IEEE80211_FC0_SUBTYPE_SHIFT;
+
 	if (is_payload) {
 		wh = (struct ieee80211_frame *)qdf_nbuf_data(mgmt_ctl_nbuf);
 
@@ -5179,7 +5207,6 @@ void dp_ppdu_desc_deliver(struct dp_pdev *pdev,
 {
 	struct ppdu_info *s_ppdu_info = NULL;
 	struct ppdu_info *ppdu_info_next = NULL;
-	uint32_t now_ms = qdf_system_ticks_to_msecs(qdf_system_ticks());
 	struct cdp_tx_completion_ppdu *ppdu_desc = NULL;
 	uint32_t time_delta = 0;
 	bool starved = 0;
@@ -5271,14 +5298,14 @@ void dp_ppdu_desc_deliver(struct dp_pdev *pdev,
 			break;
 	}
 
-	if ((pdev->tx_capture.ppdu_stats_queue_depth >
-	    DP_TX_PPDU_PROC_THRESHOLD) ||
-	    (pdev->tx_capture.ppdu_stats_next_sched <= now_ms)) {
+	if (pdev->tx_capture.ppdu_stats_queue_depth >
+		DP_TX_PPDU_PROC_THRESHOLD) {
 		qdf_queue_work(0, pdev->tx_capture.ppdu_stats_workqueue,
 			       &pdev->tx_capture.ppdu_stats_work);
-		pdev->tx_capture.ppdu_stats_next_sched =
-			now_ms + DP_TX_PPDU_PROC_TIMEOUT;
 	}
+
+	qdf_timer_mod(&pdev->tx_capture.work_q_timer,
+		      TX_CAPTURE_WORK_Q_TIMER_MS);
 }
 
 static void set_mpdu_info(

dp/wifi3.0/dp_tx_capture.h

@@ -51,6 +51,8 @@ struct dp_tx_desc_s;
 #define PPDU_LOG_ENABLE_LIST 1
 #define PPDU_LOG_DISPLAY_LIST 2
 
+#define TX_CAPTURE_WORK_Q_TIMER_MS 10
+
 /* stats */
 enum CDP_PEER_MSDU_DESC {
 	PEER_MSDU_SUCC,
@@ -126,6 +128,7 @@ struct dp_pdev_tx_capture {
 	uint32_t ppdu_stats_defer_queue_depth;
 	uint32_t ppdu_stats_next_sched;
 	qdf_spinlock_t msdu_comp_q_list_lock;
+	qdf_timer_t work_q_timer;
 	uint32_t missed_ppdu_id;
 	uint32_t last_msdu_id;
 	uint16_t last_peer_id;