qcacmn: Add support for Rx refill ring history

Add support for Rx refill ring history, maintain records of refill info
during RXDMA ring replenish.

Change-Id: I034014eacfc510ec6f416fca601fa864326de9c2
CRs-Fixed: 2930005

dp/wifi3.0/dp_rx.c

@@ -197,6 +197,51 @@ dp_pdev_frag_alloc_and_map(struct dp_soc *dp_soc,
 }
 #endif /* DP_RX_MON_MEM_FRAG */
 
+#ifdef WLAN_FEATURE_DP_RX_RING_HISTORY
+/**
+ * dp_rx_refill_ring_record_entry() - Record an entry into refill_ring history
+ * @soc: Datapath soc structure
+ * @ring_num: Refill ring number
+ * @num_req: number of buffers requested for refill
+ * @num_refill: number of buffers refilled
+ *
+ * Returns: None
+ */
+static inline void
+dp_rx_refill_ring_record_entry(struct dp_soc *soc, uint8_t ring_num,
+			       hal_ring_handle_t hal_ring_hdl,
+			       uint32_t num_req, uint32_t num_refill)
+{
+	struct dp_refill_info_record *record;
+	uint32_t idx;
+	uint32_t tp;
+	uint32_t hp;
+
+	if (qdf_unlikely(!soc->rx_refill_ring_history[ring_num]))
+		return;
+
+	idx = dp_history_get_next_index(&soc->rx_refill_ring_history[ring_num]->index,
+					DP_RX_REFILL_HIST_MAX);
+
+	/* No NULL check needed for record since its an array */
+	record = &soc->rx_refill_ring_history[ring_num]->entry[idx];
+
+	hal_get_sw_hptp(soc->hal_soc, hal_ring_hdl, &tp, &hp);
+	record->timestamp = qdf_get_log_timestamp();
+	record->num_req = num_req;
+	record->num_refill = num_refill;
+	record->hp = hp;
+	record->tp = tp;
+}
+#else
+static inline void
+dp_rx_refill_ring_record_entry(struct dp_soc *soc, uint8_t ring_num,
+			       hal_ring_handle_t hal_ring_hdl,
+			       uint32_t num_req, uint32_t num_refill)
+{
+}
+#endif
+
 /**
  * dp_pdev_nbuf_alloc_and_map() - Allocate nbuf for desc buffer and map
  *
@@ -415,6 +460,9 @@ QDF_STATUS __dp_rx_buffers_replenish(struct dp_soc *dp_soc, uint32_t mac_id,
 
 	dp_rx_refill_buff_pool_unlock(dp_soc);
 
+	dp_rx_refill_ring_record_entry(dp_soc, mac_id, rxdma_srng,
+				       num_req_buffers, count);
+
 	hal_srng_access_end(dp_soc->hal_soc, rxdma_srng);
 
 	dp_rx_schedule_refill_thread(dp_soc);
@@ -3259,6 +3307,8 @@ dp_pdev_rx_buffers_attach(struct dp_soc *dp_soc, uint32_t mac_id,
 			desc_list = next;
 		}
 
+		dp_rx_refill_ring_record_entry(dp_soc, mac_id, rxdma_srng,
+					       nr_nbuf, nr_nbuf);
 		hal_srng_access_end(dp_soc->hal_soc, rxdma_srng);
 	}