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/core/src/wlan_mlme_main.c

@@ -356,6 +356,7 @@ static void mlme_init_generic_cfg(struct wlan_objmgr_psoc *psoc,
 		cfg_get(psoc, CFG_DISABLE_4WAY_HS_OFFLOAD);
 	gen->mgmt_retry_max = cfg_get(psoc, CFG_MGMT_RETRY_MAX);
 	gen->bmiss_skip_full_scan = cfg_get(psoc, CFG_BMISS_SKIP_FULL_SCAN);
+	gen->enable_ring_buffer = cfg_get(psoc, CFG_ENABLE_RING_BUFFER);
 }
 
 static void mlme_init_edca_ani_cfg(struct wlan_mlme_edca_params *edca_params)

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;
 };
 
 /*

components/mlme/dispatcher/src/wlan_mlme_api.c

@@ -3680,3 +3680,20 @@ wlan_mlme_get_mgmt_max_retry(struct wlan_objmgr_psoc *psoc,
 	*max_retry = mlme_obj->cfg.gen.mgmt_retry_max;
 	return QDF_STATUS_SUCCESS;
 }
+
+QDF_STATUS
+wlan_mlme_get_status_ring_buffer(struct wlan_objmgr_psoc *psoc,
+				 bool *enable_ring_buffer)
+{
+	struct wlan_mlme_psoc_ext_obj *mlme_obj;
+
+	mlme_obj = mlme_get_psoc_ext_obj(psoc);
+
+	if (!mlme_obj) {
+		*enable_ring_buffer = cfg_default(CFG_ENABLE_RING_BUFFER);
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	*enable_ring_buffer = mlme_obj->cfg.gen.enable_ring_buffer;
+	return QDF_STATUS_SUCCESS;
+}

core/hdd/src/wlan_hdd_cfg80211.c

@@ -5976,6 +5976,7 @@ __wlan_hdd_cfg80211_get_logger_supp_feature(struct wiphy *wiphy,
 	int status;
 	uint32_t features;
 	struct sk_buff *reply_skb = NULL;
+	bool enable_ring_buffer;
 
 	hdd_enter_dev(wdev->netdev);
 
@@ -5989,12 +5990,17 @@ __wlan_hdd_cfg80211_get_logger_supp_feature(struct wiphy *wiphy,
 		return status;
 
 	features = 0;
-
+	wlan_mlme_get_status_ring_buffer(hdd_ctx->psoc, &enable_ring_buffer);
+	if (enable_ring_buffer) {
 		features |= WIFI_LOGGER_PER_PACKET_TX_RX_STATUS_SUPPORTED;
 		features |= WIFI_LOGGER_CONNECT_EVENT_SUPPORTED;
 		features |= WIFI_LOGGER_WAKE_LOCK_SUPPORTED;
 		features |= WIFI_LOGGER_DRIVER_DUMP_SUPPORTED;
 		features |= WIFI_LOGGER_PACKET_FATE_SUPPORTED;
+		hdd_debug("Supported logger features: 0x%0x", features);
+	} else {
+		hdd_info("Ring buffer disable");
+	}
 
 	reply_skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy,
 			sizeof(uint32_t) + NLA_HDRLEN + NLMSG_HDRLEN);
@@ -6003,7 +6009,6 @@ __wlan_hdd_cfg80211_get_logger_supp_feature(struct wiphy *wiphy,
 		return -ENOMEM;
 	}
 
-	hdd_debug("Supported logger features: 0x%0x", features);
 	if (nla_put_u32(reply_skb, QCA_WLAN_VENDOR_ATTR_LOGGER_SUPPORTED,
 				   features)) {
 		hdd_err("nla put fail");