qcacmn: Add stats in Spectral report processing path

Add the following stats.
 - Number of Spectral events received from the target
 - Number of consume_spectral_report() invocations
 - Number of fill_samp_msg() invocations
 - Number of SAMP messages that are ready to be sent to the user-space
 - Number of SAMP messages queued to the user-space

Change-Id: I53fda4b309620043a77bc2bc87573941d7fb0bcb
CRs-Fixed: 3156151

spectral/dispatcher/inc/wlan_spectral_public_structs.h

@@ -469,6 +469,23 @@ struct spectral_cp_request {
 	};
 };
 
+/**
+ * struct spectral_data_stats - Spectral data stats
+ * @spectral_rx_events: Number of Spectral rx events
+ * @consume_spectral_calls: Number of consume_spectral_report() invocations
+ * @fill_samp_msg_calls: Number of fill_samp_msg() invocations
+ * @msgs_ready_for_user: Number of SAMP messages that are ready to be sent to
+ * user-space
+ * @msgs_queued_to_user: Number of SAMP messages queued to the user-space
+ */
+struct spectral_data_stats {
+	uint32_t spectral_rx_events;
+	uint32_t consume_spectral_calls;
+	uint32_t fill_samp_msg_calls;
+	uint32_t msgs_ready_for_user;
+	uint32_t msgs_queued_to_user;
+};
+
 #ifndef __KERNEL__
 
 static inline int16_t

target_if/spectral/target_if_spectral.h

@@ -1259,6 +1259,7 @@ int get_supported_sscan_bw_pos(enum phy_ch_width sscan_bw);
  * @supported_bws: Supported sscan bandwidths for all sscan modes and
  * operating widths
  * @supported_sscan_bw_list: List of supported sscan widths for all sscan modes
+ * @data_stats: stats in Spectral data path
  */
 struct target_if_spectral {
 	struct wlan_objmgr_pdev *pdev_obj;
@@ -1392,6 +1393,7 @@ struct target_if_spectral {
 		supported_bws[SPECTRAL_SCAN_MODE_MAX][CH_WIDTH_MAX];
 	/* Whether a given sscan BW is supported on a given smode */
 	bool supported_sscan_bw_list[SPECTRAL_SCAN_MODE_MAX][CH_WIDTH_MAX];
+	struct spectral_data_stats data_stats;
 };
 
 /**

target_if/spectral/target_if_spectral_netlink.c

@@ -42,12 +42,16 @@ target_if_spectral_fill_samp_msg(struct target_if_spectral *spectral,
 	uint16_t dest_det_idx;
 	enum spectral_scan_mode spectral_mode;
 	uint16_t pwr_format;
+	struct spectral_data_stats *spectral_dp_stats;
 
 	if (!spectral) {
 		spectral_err_rl("Spectral LMAC object is null");
 		return QDF_STATUS_E_NULL_VALUE;
 	}
 
+	spectral_dp_stats = &spectral->data_stats;
+	spectral_dp_stats->fill_samp_msg_calls++;
+
 	if (!params) {
 		spectral_err_rl("SAMP msg params structure is null");
 		return QDF_STATUS_E_NULL_VALUE;
@@ -281,9 +285,12 @@ target_if_spectral_fill_samp_msg(struct target_if_spectral *spectral,
 		if (spectral_debug_level & DEBUG_SPECTRAL4)
 			target_if_dbg_print_samp_msg(spec_samp_msg);
 
+		spectral_dp_stats->msgs_ready_for_user++;
 		if (spectral->send_phy_data(spectral->pdev_obj,
-					    msg_type) == 0)
+					    msg_type) == 0) {
 			spectral->spectral_sent_msg++;
+			spectral_dp_stats->msgs_queued_to_user++;
+		}
 		if (spectral->spectral_gen == SPECTRAL_GEN3)
 			reset_160mhz_delivery_state_machine(spectral,
 							    spectral_mode);

target_if/spectral/target_if_spectral_phyerr.c

@@ -3445,12 +3445,16 @@ target_if_consume_spectral_report_gen3(
 	bool finite_scan = false;
 	int det = 0;
 	struct sscan_detector_list *det_list;
+	struct spectral_data_stats *spectral_dp_stats;
 
 	if (!spectral) {
 		spectral_err_rl("Spectral LMAC object is null");
 		goto fail_no_print;
 	}
 
+	spectral_dp_stats = &spectral->data_stats;
+	spectral_dp_stats->consume_spectral_calls++;
+
 	if (!report) {
 		spectral_err_rl("Spectral report is null");
 		goto fail_no_print;
@@ -4041,6 +4045,7 @@ int target_if_spectral_process_report_gen3(
 	struct target_if_spectral *spectral;
 	struct spectral_report report;
 	int samp_msg_index;
+	struct spectral_data_stats *spectral_dp_stats;
 
 	spectral = get_target_if_spectral_handle_from_pdev(pdev);
 	if (!spectral) {
@@ -4048,6 +4053,9 @@ int target_if_spectral_process_report_gen3(
 		return -EINVAL;
 	}
 
+	spectral_dp_stats = &spectral->data_stats;
+	spectral_dp_stats->spectral_rx_events++;
+
 	report.data = payload->vaddr;
 	if (payload->meta_data_valid) {
 		qdf_mem_copy(report.noisefloor, payload->meta_data.noisefloor,