qcacmn: Add stats for stale cookie read from rx ring

Add a count for the number of times we read a stale
cookie value from the REO2SW ring.

Change-Id: I4b20fa93f5261b4ccb9479b7b3469a294703a184
CRs-Fixed: 2736028

dp/wifi3.0/dp_rx.c

@@ -2065,8 +2065,10 @@ more_data:
 
 		rx_buf_cookie = HAL_RX_REO_BUF_COOKIE_GET(ring_desc);
 		status = dp_rx_cookie_check_and_invalidate(ring_desc);
-		if (qdf_unlikely(QDF_IS_STATUS_ERROR(status)))
+		if (qdf_unlikely(QDF_IS_STATUS_ERROR(status))) {
+			DP_STATS_INC(soc, rx.err.stale_cookie, 1);
 			break;
+		}
 
 		rx_desc = dp_rx_cookie_2_va_rxdma_buf(soc, rx_buf_cookie);
 		status = dp_rx_desc_sanity(soc, hal_soc, hal_ring_hdl,

dp/wifi3.0/dp_stats.c

@@ -6035,8 +6035,10 @@ void dp_txrx_path_stats(struct dp_soc *soc)
 			       pdev->soc->stats.rx.err.defrag_peer_uninit);
 		DP_PRINT_STATS("pkts delivered no peer %u",
 			       pdev->soc->stats.rx.err.pkt_delivered_no_peer);
-		DP_PRINT_STATS("RX invalid cookie: %d",
+		DP_PRINT_STATS("RX stale cookie: %d",
 			       soc->stats.rx.err.invalid_cookie);
+		DP_PRINT_STATS("RX invalid cookie: %d",
+			       soc->stats.rx.err.stale_cookie);
 		DP_PRINT_STATS("2k jump delba sent: %u",
 			       pdev->soc->stats.rx.err.rx_2k_jump_delba_sent);
 		DP_PRINT_STATS("2k jump msdu to stack: %u",
@@ -6579,6 +6581,9 @@ dp_print_soc_rx_stats(struct dp_soc *soc)
 	DP_PRINT_STATS("RX invalid cookie: %d",
 		       soc->stats.rx.err.invalid_cookie);
 
+	DP_PRINT_STATS("RX stale cookie: %d",
+		       soc->stats.rx.err.stale_cookie);
+
 	DP_PRINT_STATS("RX wait completed msdu break: %d",
 		       soc->stats.rx.msdu_scatter_wait_break);
 

dp/wifi3.0/dp_types.h

@@ -833,6 +833,8 @@ struct dp_soc_stats {
 			uint32_t scatter_msdu;
 			/* RX msdu drop count due to invalid cookie */
 			uint32_t invalid_cookie;
+			/* Count of stale cookie read in RX path */
+			uint32_t stale_cookie;
 			/* Delba sent count due to RX 2k jump */
 			uint32_t rx_2k_jump_delba_sent;
 			/* RX 2k jump msdu indicated to stack count */