qcacld-3.0: Add ini support to enable/disable ring buffer

Currently, There is no support to disable ring buffer. Each Ring
buffers is using 2MB and overall 10MB is consumed by 5 ring buffers.

Fix is to add ini support to enable/disable ring buffer.
Boolean ini CFG_ENABLE_RING_BUFFER is added. Default value of
gEnableRingBuffer is 1 which indicates that ring buffers are enabled
by default.

CRs-Fixed: 2592476
Change-Id: I30f95668de6df96e5c388e92e202f8c236132dc2

components/mlme/dispatcher/inc/cfg_mlme_generic.h

@@ -665,6 +665,28 @@
 			0, \
 			"To decide partial/partial scan followed by full scan")
 
+/*
+ * <ini>
+ * gEnableRingBuffer - Enable Ring Buffer for Bug Report
+ * @Min: 0
+ * @Max: 1
+ * @Default: 1
+ *
+ * This ini is used to enable Ring Buffer
+ *
+ * Related: None
+ *
+ * Supported Feature: STA/SAP
+ *
+ * Usage: External
+ *
+ * </ini>
+ */
+#define CFG_ENABLE_RING_BUFFER CFG_INI_BOOL( \
+		"gEnableRingBuffer", \
+		1, \
+		"To Enable Ring Buffer")
+
 #define CFG_GENERIC_ALL \
 	CFG(CFG_ENABLE_DEBUG_PACKET_LOG) \
 	CFG(CFG_PMF_SA_QUERY_MAX_RETRIES) \
@@ -693,5 +715,6 @@
 	CFG(CFG_ENABLE_BEACON_RECEPTION_STATS) \
 	CFG(CFG_REMOVE_TIME_STAMP_SYNC_CMD) \
 	CFG(CFG_MGMT_RETRY_MAX) \
-	CFG(CFG_BMISS_SKIP_FULL_SCAN)
+	CFG(CFG_BMISS_SKIP_FULL_SCAN) \
+	CFG(CFG_ENABLE_RING_BUFFER)
 #endif /* __CFG_MLME_GENERIC_H */

components/mlme/dispatcher/inc/wlan_mlme_api.h

@@ -2319,4 +2319,17 @@ char *mlme_get_sub_reason_str(uint32_t sub_reason);
 QDF_STATUS
 wlan_mlme_get_mgmt_max_retry(struct wlan_objmgr_psoc *psoc,
 			     uint8_t *max_retry);
+
+/**
+ * wlan_mlme_get_status_ring_buffer() - Get the
+ * status of ring buffer
+ * @psoc: pointer to psoc object
+ * @enable_ring_buffer: output pointer to point the configured value of
+ * ring buffer
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS
+wlan_mlme_get_status_ring_buffer(struct wlan_objmgr_psoc *psoc,
+				 bool *enable_ring_buffer);
 #endif /* _WLAN_MLME_API_H_ */

components/mlme/dispatcher/inc/wlan_mlme_public_struct.h

@@ -1123,6 +1123,7 @@ struct wlan_mlme_chainmask {
  * @mgmt_retry_max: maximum retries for management frame
  * @bmiss_skip_full_scan: Decide if full scan can be skipped in firmware if no
  * candidate is found in partial scan based on channel map
+ * @enable_ring_buffer: Decide to enable/disable ring buffer for bug report
  */
 struct wlan_mlme_generic {
 	enum band_info band_capability;
@@ -1156,6 +1157,7 @@ struct wlan_mlme_generic {
 	bool as_enabled;
 	uint8_t mgmt_retry_max;
 	bool bmiss_skip_full_scan;
+	bool enable_ring_buffer;
 };
 
 /*