qcacmn: Support REO2SW ring pointer update threshold configuration

Support REO2SW ring pointer update threshold configuration,
it is helpful for PCIe utilization improvement.
timer based threshold - M: issue pointer updates when M micro
seconds has elapsed.
number based threshold - N: issue pointer updates when N entries
updates occur.

Change-Id: I49ed388520fd52e97e303d6ea9c04ced6cb5cf5f
CRs-Fixed: 3420101

dp/wifi3.0/dp_main.c

@@ -1891,6 +1891,37 @@ static void dp_print_peer_table(struct dp_vdev *vdev)
 			     DP_MOD_ID_GENERIC_STATS);
 }
 
+/**
+ * dp_srng_configure_pointer_update_thresholds() - Retrieve pointer
+ * update threshold value from wlan_cfg_ctx
+ * @soc: device handle
+ * @ring_params: per ring specific parameters
+ * @ring_type: Ring type
+ * @ring_num: Ring number for a given ring type
+ * @num_entries: number of entries to fill
+ *
+ * Fill the ring params with the pointer update threshold
+ * configuration parameters available in wlan_cfg_ctx
+ *
+ * Return: None
+ */
+static void
+dp_srng_configure_pointer_update_thresholds(
+				struct dp_soc *soc,
+				struct hal_srng_params *ring_params,
+				int ring_type, int ring_num,
+				int num_entries)
+{
+	if (ring_type == REO_DST) {
+		ring_params->pointer_timer_threshold =
+			wlan_cfg_get_pointer_timer_threshold_rx(
+						soc->wlan_cfg_ctx);
+		ring_params->pointer_num_threshold =
+			wlan_cfg_get_pointer_num_threshold_rx(
+						soc->wlan_cfg_ctx);
+	}
+}
+
 #ifdef WLAN_DP_PER_RING_TYPE_CONFIG
 /**
  * dp_srng_configure_interrupt_thresholds() - Retrieve interrupt
@@ -2407,6 +2438,9 @@ QDF_STATUS dp_srng_init_idx(struct dp_soc *soc, struct dp_srng *srng,
 					       srng->num_entries);
 
 	dp_srng_set_nf_thresholds(soc, srng, &ring_params);
+	dp_srng_configure_pointer_update_thresholds(soc, &ring_params,
+						    ring_type, ring_num,
+						    srng->num_entries);
 
 	if (srng->cached)
 		ring_params.flags |= HAL_SRNG_CACHED_DESC;