qcacld-3.0: Add packet drop status

In the current wlanhost driver dump status, it doesn't
support to count the dropped packets seperately that
due to firmware don't have enough tx descriptors, so
add such function which can benefit KPI tune.

Change-Id: I1a72acbc4f1f861c2013a1ef1a95b73acccd6b53
CRs-Fixed: 2507410

core/dp/ol/inc/ol_txrx_htt_api.h

@@ -117,6 +117,9 @@ enum htt_tx_status {
 	/* no_ack - sent, but no ack */
 	htt_tx_status_no_ack = HTT_TX_COMPL_IND_STAT_NO_ACK,
 
+	/* drop may due to tx descriptor not enough*/
+	htt_tx_status_drop = HTT_TX_COMPL_IND_STAT_DROP,
+
 	/* download_fail - host could not deliver the tx frame to target */
 	htt_tx_status_download_fail = HTT_HOST_ONLY_STATUS_CODE_START,
 };

core/dp/ol/inc/ol_txrx_stats.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2014-2017 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2012, 2014-2017, 2019 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -78,6 +78,12 @@ struct ol_txrx_stats_tx_dropped {
 	 */
 	struct ol_txrx_stats_elem no_ack;
 
+	/*
+	 * MSDUs which the target drop
+	 * (lack of tx descriptor)
+	 */
+	struct ol_txrx_stats_elem target_drop;
+
 	/* MSDU which were dropped for other reasons */
 	struct ol_txrx_stats_elem others;
 };

core/dp/txrx/ol_txrx.c

@@ -4179,10 +4179,11 @@ void ol_txrx_stats_display(ol_txrx_pdev_handle pdev,
 		pdev->stats.pub.tx.dropped.download_fail.pkts
 		  + pdev->stats.pub.tx.dropped.target_discard.pkts
 		  + pdev->stats.pub.tx.dropped.no_ack.pkts
+		  + pdev->stats.pub.tx.dropped.target_drop.pkts
 		  + pdev->stats.pub.tx.dropped.others.pkts;
 
 	if (level == QDF_STATS_VERBOSITY_LEVEL_LOW) {
-		txrx_nofl_dbg("STATS |%u %u|TX: %lld tso %lld ok %lld drops(%u-%lld %u-%lld %u-%lld ?-%lld hR-%lld)|RX: %lld drops(E %lld PI %lld ME %lld) fwd(S %d F %d SF %d)|",
+		txrx_nofl_dbg("STATS |%u %u|TX: %lld tso %lld ok %lld drops(%u-%lld %u-%lld %u-%lld %u-%lld ?-%lld hR-%lld)|RX: %lld drops(E %lld PI %lld ME %lld) fwd(S %d F %d SF %d)|",
 			      pdev->tx_desc.num_free,
 			      pdev->tx_desc.pool_size,
 			      pdev->stats.pub.tx.from_stack.pkts,
@@ -4195,6 +4196,8 @@ void ol_txrx_stats_display(ol_txrx_pdev_handle pdev,
 					target_discard.pkts,
 			      htt_tx_status_no_ack,
 			      pdev->stats.pub.tx.dropped.no_ack.pkts,
+			      htt_tx_status_drop,
+			      pdev->stats.pub.tx.dropped.target_drop.pkts,
 			      pdev->stats.pub.tx.dropped.others.pkts,
 			      pdev->stats.pub.tx.dropped.host_reject.pkts,
 			      pdev->stats.pub.rx.delivered.pkts,
@@ -4219,8 +4222,9 @@ void ol_txrx_stats_display(ol_txrx_pdev_handle pdev,
 			  tx_dropped,
 		       pdev->stats.pub.tx.dropped.download_fail.bytes
 			  + pdev->stats.pub.tx.dropped.target_discard.bytes
+			  + pdev->stats.pub.tx.dropped.target_drop.bytes
 			  + pdev->stats.pub.tx.dropped.no_ack.bytes);
-	txrx_nofl_info("successfully delivered: %lld (%lld B), download fail: %lld (%lld B), target discard: %lld (%lld B), no ack: %lld (%lld B) others: %lld (%lld B)",
+	txrx_nofl_info("successfully delivered: %lld (%lld B), download fail: %lld (%lld B), target discard: %lld (%lld B), no ack: %lld (%lld B),target drop: %lld (%lld B), others: %lld (%lld B)",
 		       pdev->stats.pub.tx.delivered.pkts,
 		       pdev->stats.pub.tx.delivered.bytes,
 		       pdev->stats.pub.tx.dropped.download_fail.pkts,
@@ -4229,6 +4233,8 @@ void ol_txrx_stats_display(ol_txrx_pdev_handle pdev,
 		       pdev->stats.pub.tx.dropped.target_discard.bytes,
 		       pdev->stats.pub.tx.dropped.no_ack.pkts,
 		       pdev->stats.pub.tx.dropped.no_ack.bytes,
+		       pdev->stats.pub.tx.dropped.target_drop.pkts,
+		       pdev->stats.pub.tx.dropped.target_drop.bytes,
 		       pdev->stats.pub.tx.dropped.others.pkts,
 		       pdev->stats.pub.tx.dropped.others.bytes);
 	txrx_nofl_info("Tx completions per HTT message:\n"

core/dp/txrx/ol_txrx_internal.h

@@ -214,6 +214,9 @@ ol_rx_mpdu_list_next(struct ol_txrx_pdev_t *pdev,
 					     netbuf);			\
 		else if (status == htt_tx_status_no_ack)		\
 			TXRX_STATS_MSDU_INCR(pdev, tx.dropped.no_ack, netbuf); \
+		else if (status == htt_tx_status_drop)		\
+			TXRX_STATS_MSDU_INCR(pdev, tx.dropped.target_drop, \
+					     netbuf);			\
 		else if (status == htt_tx_status_download_fail)		\
 			TXRX_STATS_MSDU_INCR(pdev, tx.dropped.download_fail, \
 					     netbuf);			\
@@ -270,6 +273,12 @@ ol_rx_mpdu_list_next(struct ol_txrx_pdev_t *pdev,
 			TXRX_STATS_ADD(_pdev, pub.tx.dropped.no_ack.bytes,     \
 				 _b_cntrs);				       \
 			break;                                                 \
+		case htt_tx_status_drop:                                    \
+			TXRX_STATS_ADD(_pdev,				       \
+				 pub.tx.dropped.target_drop.pkts, _p_cntrs);\
+			TXRX_STATS_ADD(_pdev,				       \
+				pub.tx.dropped.target_drop.bytes, _b_cntrs);\
+			break;                                                 \
 		case htt_tx_status_download_fail:                              \
 			TXRX_STATS_ADD(_pdev,				       \
 				 pub.tx.dropped.download_fail.pkts, _p_cntrs); \