qcacmn: Add target_if/wmi implementation of get congestion stats

Add changes to support get congestion stats(arp stats) from
within cp_stats component.

Change-Id: Ic3b2f020c0169c9113c1b40738f782cbb3b8f6c5
CRs-Fixed: 2222781

target_if/cp_stats/src/target_if_mc_cp_stats.c

@@ -54,6 +54,8 @@ static void target_if_cp_stats_free_stats_event(struct stats_event *ev)
 	ev->pdev_stats = NULL;
 	qdf_mem_free(ev->peer_stats);
 	ev->peer_stats = NULL;
+	qdf_mem_free(ev->cca_stats);
+	ev->cca_stats = NULL;
 }
 
 static QDF_STATUS target_if_cp_stats_extract_pdev_stats(
@@ -130,6 +132,33 @@ static QDF_STATUS target_if_cp_stats_extract_peer_stats(
 	return QDF_STATUS_SUCCESS;
 }
 
+static QDF_STATUS target_if_cp_stats_extract_cca_stats(
+					struct wmi_unified *wmi_hdl,
+					wmi_host_stats_event *stats_param,
+					struct stats_event *ev, uint8_t *data)
+{
+	QDF_STATUS status;
+	struct wmi_host_congestion_stats stats = {0};
+
+	status = wmi_extract_cca_stats(wmi_hdl, data, &stats);
+	if (QDF_IS_STATUS_ERROR(status)) {
+		cp_stats_debug("no congestion stats");
+		return QDF_STATUS_SUCCESS;
+	}
+
+	ev->cca_stats = qdf_mem_malloc(sizeof(*ev->cca_stats));
+	if (!ev->cca_stats) {
+		cp_stats_err("malloc failed");
+		return QDF_STATUS_E_NOMEM;
+	}
+
+
+	ev->cca_stats->vdev_id = stats.vdev_id;
+	ev->cca_stats->congestion = stats.congestion;
+
+	return QDF_STATUS_SUCCESS;
+}
+
 static QDF_STATUS target_if_cp_stats_extract_event(struct wmi_unified *wmi_hdl,
 						   struct stats_event *ev,
 						   uint8_t *data)
@@ -156,6 +185,11 @@ static QDF_STATUS target_if_cp_stats_extract_event(struct wmi_unified *wmi_hdl,
 	if (QDF_IS_STATUS_ERROR(status))
 		return status;
 
+	status = target_if_cp_stats_extract_cca_stats(wmi_hdl, &stats_param,
+						      ev, data);
+	if (QDF_IS_STATUS_ERROR(status))
+		return status;
+
 	return QDF_STATUS_SUCCESS;
 }
 

wmi/inc/wmi_unified_api.h

@@ -2252,4 +2252,18 @@ QDF_STATUS wmi_unified_invoke_neighbor_report_cmd(void *wmi_hdl,
 wmi_host_channel_width wmi_get_ch_width_from_phy_mode(void *wmi_hdl,
 					WMI_HOST_WLAN_PHY_MODE phymode);
 
+#ifdef QCA_SUPPORT_CP_STATS
+/**
+ * wmi_extract_cca_stats() - api to extract congestion stats from event buffer
+ * @wmi_handle: wma handle
+ * @evt_buf: event buffer
+ * @datalen: length of buffer
+ * @stats: buffer to populated after stats extraction
+ *
+ * Return: status of operation
+ */
+QDF_STATUS wmi_extract_cca_stats(wmi_unified_t wmi_handle, void *evt_buf,
+				 struct wmi_host_congestion_stats *stats);
+#endif /* QCA_SUPPORT_CP_STATS */
+
 #endif /* _WMI_UNIFIED_API_H_ */

wmi/inc/wmi_unified_param.h

@@ -8391,4 +8391,19 @@ struct wmi_obss_color_collision_info {
 	uint32_t obss_color_bitmap_bit0to31;
 	uint32_t obss_color_bitmap_bit32to63;
 };
+
+#ifdef QCA_SUPPORT_CP_STATS
+/**
+ * struct wmi_host_congestion_stats - host definition of congestion stats
+ * @vdev_id: ID of the vdev to which this info belongs.
+ * @congestion: This field holds the congestion percentage =
+ *                                             (busy_time/total_time)*100
+ * for the interval from when the vdev was started to the current time
+ * (or the time at which the vdev was stopped).
+ */
+struct wmi_host_congestion_stats {
+	uint32_t vdev_id;
+	uint32_t congestion;
+};
+#endif
 #endif /* _WMI_UNIFIED_PARAM_H_ */

wmi/inc/wmi_unified_priv.h

@@ -1616,6 +1616,11 @@ QDF_STATUS (*extract_twt_resume_dialog_comp_event)(wmi_unified_t wmi_handle,
 		uint8_t *evt_buf,
 		struct wmi_twt_resume_dialog_complete_event_param *params);
 #endif
+
+#ifdef QCA_SUPPORT_CP_STATS
+QDF_STATUS (*extract_cca_stats)(wmi_unified_t wmi_handle, void *evt_buf,
+				struct wmi_host_congestion_stats *stats);
+#endif /* QCA_SUPPORT_CP_STATS */
 };
 
 /* Forward declartion for psoc*/

wmi/src/wmi_unified_api.c

@@ -7482,3 +7482,15 @@ wmi_host_channel_width wmi_get_ch_width_from_phy_mode(void *wmi_hdl,
 	else
 		return WMI_HOST_CHAN_WIDTH_20;
 }
+
+#ifdef QCA_SUPPORT_CP_STATS
+QDF_STATUS wmi_extract_cca_stats(wmi_unified_t wmi_handle, void *evt_buf,
+				 struct wmi_host_congestion_stats *stats)
+{
+	if (wmi_handle->ops->extract_cca_stats)
+		return wmi_handle->ops->extract_cca_stats(wmi_handle, evt_buf,
+							  stats);
+
+	return QDF_STATUS_E_FAILURE;
+}
+#endif /* QCA_SUPPORT_CP_STATS */

wmi/src/wmi_unified_tlv.c

@@ -17806,6 +17806,36 @@ static QDF_STATUS extract_ndp_end_ind_tlv(wmi_unified_t wmi_handle,
 }
 #endif
 
+#ifdef QCA_SUPPORT_CP_STATS
+/**
+ * extract_cca_stats_tlv - api to extract congestion stats from event buffer
+ * @wmi_handle: wma handle
+ * @evt_buf: event buffer
+ * @out_buff: buffer to populated after stats extraction
+ *
+ * Return: status of operation
+ */
+static QDF_STATUS extract_cca_stats_tlv(wmi_unified_t wmi_handle,
+		void *evt_buf, struct wmi_host_congestion_stats *out_buff)
+{
+	WMI_UPDATE_STATS_EVENTID_param_tlvs *param_buf;
+	wmi_congestion_stats *congestion_stats;
+
+	param_buf = (WMI_UPDATE_STATS_EVENTID_param_tlvs *)evt_buf;
+	congestion_stats = param_buf->congestion_stats;
+	if (!congestion_stats) {
+		WMI_LOGD("%s: no cca stats in event buffer", __func__);
+		return QDF_STATUS_E_INVAL;
+	}
+
+	out_buff->vdev_id = congestion_stats->vdev_id;
+	out_buff->congestion = congestion_stats->congestion;
+
+	WMI_LOGD("%s: cca stats event processed", __func__);
+	return QDF_STATUS_SUCCESS;
+}
+#endif /* QCA_SUPPORT_CP_STATS */
+
 /**
  * save_service_bitmap_tlv() - save service bitmap
  * @wmi_handle: wmi handle
@@ -22891,6 +22921,9 @@ struct wmi_ops tlv_ops =  {
 		extract_obss_color_collision_info_tlv,
 	.extract_comb_phyerr = extract_comb_phyerr_tlv,
 	.extract_single_phyerr = extract_single_phyerr_tlv,
+#ifdef QCA_SUPPORT_CP_STATS
+	.extract_cca_stats = extract_cca_stats_tlv,
+#endif
 };
 
 /**