qcacmn: Add roam set param command for roam params

This change introduces the new roam set param WMI command to set
the roam params from host to FW.
Also added a fail_bssid param in wmi_roam_result TLV to know the
roam failed AP BSSID from the FW.
Added a new vendor command event for sending roam events stats
attributes to userspace.

Change-Id: I7a08635a7912cbd940d90a2d62433296740ad913
CRs-Fixed: 3050799

os_if/linux/wlan_cfg80211.h

@@ -245,6 +245,9 @@ enum qca_nl80211_vendor_subcmds_index {
 #ifdef WLAN_FEATURE_CONNECTIVITY_LOGGING
 	QCA_NL80211_VENDOR_SUBCMD_DIAG_EVENT_INDEX,
 #endif
+#ifdef WLAN_FEATURE_ROAM_OFFLOAD
+	QCA_NL80211_VENDOR_SUBCMD_ROAM_EVENTS_INDEX,
+#endif
 };
 
 #if !defined(SUPPORT_WDEV_CFG80211_VENDOR_EVENT_ALLOC) && \

wmi/inc/wmi_unified_api.h

@@ -863,6 +863,26 @@ QDF_STATUS
 wmi_unified_vdev_set_param_send(wmi_unified_t wmi_handle,
 				struct vdev_set_params *param);
 
+#ifdef WLAN_FEATURE_ROAM_OFFLOAD
+/**
+ * wmi_unified_roam_set_param_send() - WMI roam set parameter function
+ * @wmi_handle: handle to WMI.
+ * @roam_param: pointer to hold roam set parameter
+ *
+ * Return: QDF_STATUS_SUCCESS on success and QDF_STATUS_E_FAILURE for failure
+ */
+QDF_STATUS
+wmi_unified_roam_set_param_send(wmi_unified_t wmi_handle,
+				struct vdev_set_params *roam_param);
+#else
+static inline QDF_STATUS
+wmi_unified_roam_set_param_send(wmi_unified_t wmi_handle,
+				struct vdev_set_params *roam_param)
+{
+	return QDF_STATUS_SUCCESS;
+}
+#endif
+
 /**
  * wmi_unified_sifs_trigger_send() - WMI vdev sifs trigger parameter function
  * @wmi_handle: handle to WMI.

wmi/inc/wmi_unified_param.h

@@ -7665,12 +7665,14 @@ struct wmi_roam_scan_data {
  * @status:             0 - Roaming is success ; 1 - Roaming failed ;
  * 2 - No roam
  * @fail_reason:        One of WMI_ROAM_FAIL_REASON_ID
+ * @fail_bssid:         BSSID of the last attempted roam failed AP
  */
 struct wmi_roam_result {
 	bool present;
 	uint32_t timestamp;
 	uint32_t status;
 	uint32_t fail_reason;
+	struct qdf_mac_addr fail_bssid;
 };
 
 #define WLAN_11KV_TYPE_BTM_REQ  1

wmi/inc/wmi_unified_priv.h

@@ -1092,6 +1092,9 @@ QDF_STATUS (*send_pdev_set_pcl_cmd)(wmi_unified_t wmi_handle,
 #ifdef WLAN_FEATURE_ROAM_OFFLOAD
 QDF_STATUS (*send_vdev_set_pcl_cmd)(wmi_unified_t wmi_handle,
 				    struct set_pcl_cmd_params *params);
+
+QDF_STATUS (*send_roam_set_param_cmd)(wmi_unified_t wmi_handle,
+				      struct vdev_set_params *roam_param);
 #endif
 
 #ifdef WLAN_POLICY_MGR_ENABLE

wmi/src/wmi_unified_api.c

@@ -408,6 +408,19 @@ wmi_unified_vdev_set_param_send(wmi_unified_t wmi_handle,
 	return QDF_STATUS_E_FAILURE;
 }
 
+#ifdef WLAN_FEATURE_ROAM_OFFLOAD
+QDF_STATUS
+wmi_unified_roam_set_param_send(wmi_unified_t wmi_handle,
+				struct vdev_set_params *roam_param)
+{
+	if (wmi_handle->ops->send_roam_set_param_cmd)
+		return wmi_handle->ops->send_roam_set_param_cmd(wmi_handle,
+								roam_param);
+
+	return QDF_STATUS_E_FAILURE;
+}
+#endif
+
 QDF_STATUS wmi_unified_sifs_trigger_send(wmi_unified_t wmi_handle,
 					 struct sifs_trigger_param *param)
 {

wmi/src/wmi_unified_tlv.c

@@ -15490,6 +15490,7 @@ extract_roam_result_stats_tlv(wmi_unified_t wmi_handle, void *evt_buf,
 	dst->status = src_data->roam_status;
 	dst->timestamp = src_data->timestamp;
 	dst->fail_reason = src_data->roam_fail_reason;
+	WMI_MAC_ADDR_TO_CHAR_ARRAY(&src_data->bssid, dst->fail_bssid.bytes);
 
 	return QDF_STATUS_SUCCESS;
 }
@@ -15557,6 +15558,47 @@ extract_roam_11kv_stats_tlv(wmi_unified_t wmi_handle, void *evt_buf,
 
 	return QDF_STATUS_SUCCESS;
 }
+
+/**
+ *  send_roam_set_param_cmd_tlv() - WMI roam set parameter function
+ *  @wmi_handle      : handle to WMI.
+ *  @roam_param    : pointer to hold roam set parameter
+ *
+ *  Return: 0  on success and -ve on failure.
+ */
+static QDF_STATUS
+send_roam_set_param_cmd_tlv(wmi_unified_t wmi_handle,
+			    struct vdev_set_params *roam_param)
+{
+	QDF_STATUS ret;
+	wmi_roam_set_param_cmd_fixed_param *cmd;
+	wmi_buf_t buf;
+	uint16_t len = sizeof(*cmd);
+
+	buf = wmi_buf_alloc(wmi_handle, len);
+	if (!buf)
+		return QDF_STATUS_E_NOMEM;
+
+	cmd = (wmi_roam_set_param_cmd_fixed_param *)wmi_buf_data(buf);
+	WMITLV_SET_HDR(&cmd->tlv_header,
+		       WMITLV_TAG_STRUC_wmi_roam_set_param_cmd_fixed_param,
+		       WMITLV_GET_STRUCT_TLVLEN
+			       (wmi_roam_set_param_cmd_fixed_param));
+	cmd->vdev_id = roam_param->vdev_id;
+	cmd->param_id = roam_param->param_id;
+	cmd->param_value = roam_param->param_value;
+	wmi_debug("Setting vdev %d roam_param = %x, value = %u",
+		  cmd->vdev_id, cmd->param_id, cmd->param_value);
+	wmi_mtrace(WMI_ROAM_SET_PARAM_CMDID, cmd->vdev_id, 0);
+	ret = wmi_unified_cmd_send(wmi_handle, buf, len,
+				   WMI_ROAM_SET_PARAM_CMDID);
+	if (QDF_IS_STATUS_ERROR(ret)) {
+		wmi_err("Failed to send roam set param command, ret = %d", ret);
+		wmi_buf_free(buf);
+	}
+
+	return ret;
+}
 #else
 static inline QDF_STATUS
 extract_roam_trigger_stats_tlv(wmi_unified_t wmi_handle, void *evt_buf,
@@ -16634,6 +16676,9 @@ struct wmi_ops tlv_ops =  {
 	.send_mgmt_rx_reo_filter_config_cmd =
 		send_mgmt_rx_reo_filter_config_cmd_tlv,
 #endif
+#ifdef WLAN_FEATURE_ROAM_OFFLOAD
+	.send_roam_set_param_cmd = send_roam_set_param_cmd_tlv,
+#endif /* WLAN_FEATURE_ROAM_OFFLOAD */
 };
 
 /**