qcacmn: Avoid sending wds del wmi cmds in a burst

In case of aging out wds entries, avoid sending all
the wds delete wmi commands in a huge single burst.
Instead limit the maximum commands to half of the
wmi queue size. Inactivity will continue to be
marked every 120 secs but the inactive entries
will be flushed every 5 secs if there are pending
entries.

Change-Id: I6735704a0750ef466f1df798f0b354f4382098d6
CRs-Fixed: 2952682

dp/wifi3.0/dp_txrx_wds.c

@@ -44,6 +44,12 @@ static void
 dp_peer_age_ast_entries(struct dp_soc *soc, struct dp_peer *peer, void *arg)
 {
 	struct dp_ast_entry *ase, *temp_ase;
+	struct ast_del_ctxt *del_ctxt = (struct ast_del_ctxt *)arg;
+
+	if ((del_ctxt->del_count >= soc->max_ast_ageout_count) &&
+	    !del_ctxt->age) {
+		return;
+	}
 
 	DP_PEER_ITERATE_ASE_LIST(peer, ase, temp_ase) {
 		/*
@@ -54,12 +60,21 @@ dp_peer_age_ast_entries(struct dp_soc *soc, struct dp_peer *peer, void *arg)
 			continue;
 
 		if (ase->is_active) {
-			ase->is_active = FALSE;
+			if (del_ctxt->age)
+				ase->is_active = FALSE;
+
 			continue;
 		}
 
-		DP_STATS_INC(soc, ast.aged_out, 1);
-		dp_peer_del_ast(soc, ase);
+		if (del_ctxt->del_count < soc->max_ast_ageout_count) {
+			DP_STATS_INC(soc, ast.aged_out, 1);
+			dp_peer_del_ast(soc, ase);
+			del_ctxt->del_count++;
+		} else {
+			soc->pending_ageout = true;
+			if (!del_ctxt->age)
+				break;
+		}
 	}
 }
 
@@ -97,17 +112,23 @@ dp_peer_age_mec_entries(struct dp_soc *soc)
 static void dp_ast_aging_timer_fn(void *soc_hdl)
 {
 	struct dp_soc *soc = (struct dp_soc *)soc_hdl;
+	struct ast_del_ctxt del_ctxt = {0};
+
 
 	if (soc->wds_ast_aging_timer_cnt++ >= DP_WDS_AST_AGING_TIMER_CNT) {
+		del_ctxt.age = true;
 		soc->wds_ast_aging_timer_cnt = 0;
+	}
+
+	if (soc->pending_ageout || del_ctxt.age) {
+		soc->pending_ageout = false;
 
 		/* AST list access lock */
 		qdf_spin_lock_bh(&soc->ast_lock);
 
-		dp_soc_iterate_peer(soc, dp_peer_age_ast_entries, NULL,
-				DP_MOD_ID_AST);
+		dp_soc_iterate_peer(soc, dp_peer_age_ast_entries, &del_ctxt,
+				    DP_MOD_ID_AST);
 		qdf_spin_unlock_bh(&soc->ast_lock);
-
 	}
 
 	/*
@@ -132,6 +153,7 @@ static void dp_ast_aging_timer_fn(void *soc_hdl)
 void dp_soc_wds_attach(struct dp_soc *soc)
 {
 	soc->wds_ast_aging_timer_cnt = 0;
+	soc->pending_ageout = false;
 	qdf_timer_init(soc->osdev, &soc->ast_aging_timer,
 		       dp_ast_aging_timer_fn, (void *)soc,
 		       QDF_TIMER_TYPE_WAKE_APPS);