qcacmn: Increment htc runtime cnt prior to hif_send_head

HTC runtime count is incremented after posting the HTT
ver req message to CE4. There could be possibility of
processing the ver response message from FW even before
htc_runtime_cnt is incremented. This can casue RTPM put
to not happen causing imbalance in get/put count.

Fix is to increment htc_runtime_cnt before enqueuing
the HTT message to CE.

Change-Id: Ib9b69910cd14193c41ecfee804b390f8a6cdef49
CRs-Fixed: 2794451

dp/wifi3.0/dp_htt.c

@@ -4571,6 +4571,8 @@ static void dp_htt_t2h_msg_handler(void *context, HTC_PACKET *pkt)
 			 */
 			if (htc_dec_return_runtime_cnt(soc->htc_soc) >= 0)
 				htc_pm_runtime_put(soc->htc_soc);
+			else
+				soc->stats.htt_ver_req_put_skip++;
 			soc->tgt_ver.major = HTT_VER_CONF_MAJOR_GET(*msg_word);
 			soc->tgt_ver.minor = HTT_VER_CONF_MINOR_GET(*msg_word);
 			QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_INFO_LOW,

dp/wifi3.0/dp_htt.h

@@ -194,6 +194,8 @@ struct htt_soc {
 	struct {
 		int htc_err_cnt;
 		int htc_pkt_free;
+		/* rtpm put skip count for ver req msg */
+		int htt_ver_req_put_skip;
 	} stats;
 
 	HTT_TX_MUTEX_TYPE htt_tx_mutex;

htc/htc_send.c

@@ -858,8 +858,10 @@ static QDF_STATUS htc_issue_packets(HTC_TARGET *target,
 		if (pPacket->PktInfo.AsTx.Tag == HTC_TX_PACKET_TAG_RUNTIME_PUT)
 			rt_put = true;
 		else if (pPacket->PktInfo.AsTx.Tag ==
-			 HTC_TX_PACKET_TAG_RTPM_PUT_RC)
+			 HTC_TX_PACKET_TAG_RTPM_PUT_RC) {
 			rt_put_in_resp = true;
+			htc_inc_runtime_cnt(target);
+		}
 
 #if DEBUG_BUNDLE
 		qdf_print(" Send single EP%d buffer size:0x%x, total:0x%x.",
@@ -879,6 +881,8 @@ static QDF_STATUS htc_issue_packets(HTC_TARGET *target,
 				       netbuf, data_attr);
 
 		if (status != QDF_STATUS_SUCCESS) {
+			if (rt_put_in_resp)
+				htc_dec_return_runtime_cnt((void *)target);
 			if (pEndpoint->EpCallBacks.ep_padding_credit_update) {
 				if (used_extra_tx_credit) {
 					ctx = pEndpoint->EpCallBacks.pContext;
@@ -946,9 +950,6 @@ static QDF_STATUS htc_issue_packets(HTC_TARGET *target,
 					   RTPM_ID_HTC);
 			rt_put = false;
 		}
-
-		if (rt_put_in_resp)
-			htc_inc_runtime_cnt(target);
 	}
 
 	if (qdf_unlikely(QDF_IS_STATUS_ERROR(status))) {