qcacmn: wmi changes to send bss load trigger config to firmware

Populate the load bss trigger configuration values based on the
ini values and send them to firmware.

Add wmi changes to send bss load trigger config to firmware.

Change-Id: Ib2e21904bc7b8d87e5f51824d2694b90a3ac53f2
CRs-Fixed: 2367773

wmi/inc/wmi_unified_priv.h

@@ -574,6 +574,9 @@ QDF_STATUS (*send_offload_11k_cmd)(wmi_unified_t wmi_handle,
 QDF_STATUS (*send_invoke_neighbor_report_cmd)(wmi_unified_t wmi_handle,
 		struct wmi_invoke_neighbor_report_params *params);
 
+QDF_STATUS (*send_roam_bss_load_config)(wmi_unified_t wmi_handle,
+					struct wmi_bss_load_config *params);
+
 QDF_STATUS (*send_btm_config)(wmi_unified_t wmi_handle,
 			      struct wmi_btm_config *params);
 

wmi/inc/wmi_unified_roam_api.h

@@ -298,6 +298,16 @@ QDF_STATUS wmi_unified_roam_send_hlp_cmd(void *wmi_hdl,
 QDF_STATUS wmi_unified_send_btm_config(void *wmi_hdl,
 				       struct wmi_btm_config *params);
 
+/**
+ * wmi_unified_send_bss_load_config() - Send bss load trigger params to fw
+ * @wmi_hdl:  wmi handle
+ * @params: pointer to wmi_bss_load_config
+ *
+ * Return: QDF_STATUS
+ */
+QDF_STATUS wmi_unified_send_bss_load_config(void *wmi_hdl,
+					    struct wmi_bss_load_config *params);
+
 /**
  * wmi_unified_offload_11k_cmd() - send 11k offload command
  * @wmi_hdl: wmi handle

wmi/inc/wmi_unified_roam_param.h

@@ -524,6 +524,16 @@ struct wmi_btm_config {
 	uint32_t btm_sticky_time;
 };
 
+/**
+ * struct wmi_bss_load_config - BSS load trigger parameters
+ * @vdev_id: VDEV on which the parameters should be applied
+ * @bss_load_threshold: BSS load threshold after which roam scan should trigger
+ */
+struct wmi_bss_load_config {
+	uint32_t vdev_id;
+	uint32_t bss_load_threshold;
+};
+
 /**
  * @time_offset: time offset after 11k offload command to trigger a neighbor
  *	report request (in seconds)

wmi/src/wmi_unified_roam_api.c

@@ -288,6 +288,18 @@ QDF_STATUS wmi_unified_send_btm_config(void *wmi_hdl,
 	return QDF_STATUS_E_FAILURE;
 }
 
+QDF_STATUS wmi_unified_send_bss_load_config(void *wmi_hdl,
+					    struct wmi_bss_load_config *params)
+{
+	wmi_unified_t wmi_handle = (wmi_unified_t)wmi_hdl;
+
+	if (wmi_handle->ops->send_roam_bss_load_config)
+		return wmi_handle->ops->send_roam_bss_load_config(wmi_handle,
+								  params);
+
+	return QDF_STATUS_E_FAILURE;
+}
+
 QDF_STATUS wmi_unified_offload_11k_cmd(void *wmi_hdl,
 				struct wmi_11k_offload_params *params)
 {

wmi/src/wmi_unified_roam_tlv.c

@@ -2046,6 +2046,50 @@ static QDF_STATUS send_btm_config_cmd_tlv(wmi_unified_t wmi_handle,
 	return QDF_STATUS_SUCCESS;
 }
 
+/**
+ * send_roam_bss_load_config_tlv() - send roam load bss trigger configuration
+ * @wmi_handle: wmi handle
+ * @parms: pointer to wmi_bss_load_config
+ *
+ * This function sends the roam load bss trigger configuration to fw.
+ * the bss_load_threshold parameter is used to configure the maximum
+ * bss load percentage, above which the firmware should trigger roaming
+ *
+ * Return: QDF status
+ */
+static QDF_STATUS
+send_roam_bss_load_config_tlv(wmi_unified_t wmi_handle,
+			      struct wmi_bss_load_config *params)
+{
+	wmi_roam_bss_load_config_cmd_fixed_param *cmd;
+	wmi_buf_t buf;
+	uint32_t len;
+
+	len = sizeof(*cmd);
+	buf = wmi_buf_alloc(wmi_handle, len);
+	if (!buf)
+		return QDF_STATUS_E_NOMEM;
+
+	cmd = (wmi_roam_bss_load_config_cmd_fixed_param *)wmi_buf_data(buf);
+	WMITLV_SET_HDR(
+	    &cmd->tlv_header,
+	    WMITLV_TAG_STRUC_wmi_roam_bss_load_config_cmd_fixed_param,
+	    WMITLV_GET_STRUCT_TLVLEN(wmi_roam_bss_load_config_cmd_fixed_param));
+	cmd->vdev_id = params->vdev_id;
+	cmd->bss_load_threshold = params->bss_load_threshold;
+
+	wmi_mtrace(WMI_ROAM_BSS_LOAD_CONFIG_CMDID, cmd->vdev_id, 0);
+	if (wmi_unified_cmd_send(wmi_handle, buf, len,
+				 WMI_ROAM_BSS_LOAD_CONFIG_CMDID)) {
+		WMI_LOGE("%s: failed to send WMI_ROAM_BSS_LOAD_CONFIG_CMDID ",
+			 __func__);
+		wmi_buf_free(buf);
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	return QDF_STATUS_SUCCESS;
+}
+
 /**
  * send_offload_11k_cmd_tlv() - send wmi cmd with 11k offload params
  * @wmi_handle: wmi handler
@@ -2214,6 +2258,7 @@ void wmi_roam_attach_tlv(wmi_unified_t wmi_handle)
 	ops->send_offload_11k_cmd = send_offload_11k_cmd_tlv;
 	ops->send_invoke_neighbor_report_cmd =
 			send_invoke_neighbor_report_cmd_tlv;
+	ops->send_roam_bss_load_config = send_roam_bss_load_config_tlv;
 
 	wmi_lfr_subnet_detection_attach_tlv(wmi_handle);
 	wmi_rssi_monitor_attach_tlv(wmi_handle);