qcacmn: Add APIs to configure Active BPF Mode

Active Mode Berkeley Packet Filter (Active BPF) is a new feature that
allows firmware to apply BPF even while the Apps processor is active.
There are 3 modes:
 * Disabled: do not apply BPF in active mode
 * Enabled: apply BPF to all packets in active mode
 * Adaptive: apply BPF up to some threshold to avoid performance impact

Add WMI APIs and related logic to support configuration of Active BPF
Mode.

Change-Id: I8c0778b3fa73d148422aa103b0fc0950433fec95
CRs-Fixed: 1111400

wmi/inc/wmi_unified_api.h

@@ -858,6 +858,19 @@ QDF_STATUS wmi_unified_get_buf_extscan_hotlist_cmd(void *wmi_hdl,
 				   struct ext_scan_setbssi_hotlist_params *
 				   photlist, int *buf_len);
 
+/**
+ * wmi_unified_set_active_bpf_mode_cmd() - config active BPF mode in FW
+ * @wmi_hdl: the WMI handle
+ * @vdev_id: the Id of the vdev to apply the configuration to
+ * @ucast_mode: the active BPF mode to configure for unicast packets
+ * @mcast_bcast_mode: the active BPF mode to configure for multicast/broadcast
+ *	packets
+ */
+QDF_STATUS wmi_unified_set_active_bpf_mode_cmd(void *wmi_hdl,
+				uint8_t vdev_id,
+				enum wmi_host_active_bpf_mode ucast_mode,
+				enum wmi_host_active_bpf_mode mcast_bcast_mode);
+
 QDF_STATUS wmi_unified_stats_request_send(void *wmi_hdl,
 				uint8_t macaddr[IEEE80211_ADDR_LEN],
 				struct stats_request_params *param);

wmi/inc/wmi_unified_param.h

@@ -7245,4 +7245,17 @@ struct pdev_csa_switch_count_status {
 	uint32_t *vdev_ids;
 };
 
+/**
+ * enum wmi_host_active-bpf_mode - FW_ACTIVE_BPF_MODE, replicated from FW header
+ * @WMI_HOST_ACTIVE_BPF_DISABLED: BPF is disabled for all packets in active mode
+ * @WMI_HOST_ACTIVE_BPF_ENABLED: BPF is enabled for all packets in active mode
+ * @WMI_HOST_ACTIVE_BPF_ADAPTIVE: BPF is enabled for packets up to some
+ *	threshold in active mode
+ */
+enum wmi_host_active_bpf_mode {
+	WMI_HOST_ACTIVE_BPF_DISABLED =	(1 << 1),
+	WMI_HOST_ACTIVE_BPF_ENABLED =	(1 << 2),
+	WMI_HOST_ACTIVE_BPF_ADAPTIVE =	(1 << 3)
+};
+
 #endif /* _WMI_UNIFIED_PARAM_H_ */

wmi/inc/wmi_unified_priv.h

@@ -724,6 +724,11 @@ QDF_STATUS (*send_get_buf_extscan_hotlist_cmd)(wmi_unified_t wmi_handle,
 				   struct ext_scan_setbssi_hotlist_params *
 				   photlist, int *buf_len);
 
+QDF_STATUS (*send_set_active_bpf_mode_cmd)(wmi_unified_t wmi_handle,
+				uint8_t vdev_id,
+				enum wmi_host_active_bpf_mode ucast_mode,
+				enum wmi_host_active_bpf_mode mcast_bcast_mode);
+
 QDF_STATUS (*send_pdev_get_tpc_config_cmd)(wmi_unified_t wmi_handle,
 		uint32_t param);
 

wmi/src/wmi_unified_api.c

@@ -3229,6 +3229,23 @@ QDF_STATUS wmi_unified_get_buf_extscan_hotlist_cmd(void *wmi_hdl,
 	return QDF_STATUS_E_FAILURE;
 }
 
+QDF_STATUS wmi_unified_set_active_bpf_mode_cmd(void *wmi_hdl,
+				uint8_t vdev_id,
+				enum wmi_host_active_bpf_mode ucast_mode,
+				enum wmi_host_active_bpf_mode mcast_bcast_mode)
+{
+	wmi_unified_t wmi = (wmi_unified_t)wmi_hdl;
+
+	if (!wmi->ops->send_set_active_bpf_mode_cmd) {
+		WMI_LOGI("send_set_active_bpf_mode_cmd op is NULL");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	return wmi->ops->send_set_active_bpf_mode_cmd(wmi, vdev_id,
+						      ucast_mode,
+						      mcast_bcast_mode);
+}
+
 /**
  *  wmi_unified_pdev_get_tpc_config_cmd_send() - WMI get tpc config function
  *  @param wmi_handle      : handle to WMI.

wmi/src/wmi_unified_tlv.c

@@ -13334,6 +13334,63 @@ static QDF_STATUS send_get_buf_extscan_hotlist_cmd_tlv(wmi_unified_t wmi_handle,
 	return QDF_STATUS_SUCCESS;
 }
 
+/**
+ * send_set_active_bpf_mode_cmd_tlv() - configure active BPF mode in FW
+ * @wmi_handle: the WMI handle
+ * @vdev_id: the Id of the vdev to apply the configuration to
+ * @ucast_mode: the active BPF mode to configure for unicast packets
+ * @mcast_bcast_mode: the active BPF mode to configure for multicast/broadcast
+ *	packets
+ *
+ * Return: QDF status
+ */
+static QDF_STATUS send_set_active_bpf_mode_cmd_tlv(wmi_unified_t wmi_handle,
+				uint8_t vdev_id,
+				enum wmi_host_active_bpf_mode ucast_mode,
+				enum wmi_host_active_bpf_mode mcast_bcast_mode)
+{
+	const WMITLV_TAG_ID tag_id =
+		WMITLV_TAG_STRUC_wmi_bpf_set_vdev_active_mode_cmd_fixed_param;
+	const uint32_t tlv_len = WMITLV_GET_STRUCT_TLVLEN(
+				wmi_bpf_set_vdev_active_mode_cmd_fixed_param);
+	QDF_STATUS status;
+	wmi_bpf_set_vdev_active_mode_cmd_fixed_param *cmd;
+	wmi_buf_t buf;
+
+	WMI_LOGI("Sending WMI_BPF_SET_VDEV_ACTIVE_MODE_CMDID(%u, %d, %d)",
+		 vdev_id, ucast_mode, mcast_bcast_mode);
+
+	/* allocate command buffer */
+	buf = wmi_buf_alloc(wmi_handle, sizeof(*cmd));
+	if (!buf) {
+		WMI_LOGE("%s: wmi_buf_alloc failed", __func__);
+		return QDF_STATUS_E_NOMEM;
+	}
+
+	/* set TLV header */
+	cmd = (wmi_bpf_set_vdev_active_mode_cmd_fixed_param *)wmi_buf_data(buf);
+	WMITLV_SET_HDR(&cmd->tlv_header, tag_id, tlv_len);
+
+	/* populate data */
+	cmd->vdev_id = vdev_id;
+	cmd->uc_mode = ucast_mode;
+	cmd->mcbc_mode = mcast_bcast_mode;
+
+	/* send to FW */
+	status = wmi_unified_cmd_send(wmi_handle, buf, sizeof(*cmd),
+				      WMI_BPF_SET_VDEV_ACTIVE_MODE_CMDID);
+	if (QDF_IS_STATUS_ERROR(status)) {
+		WMI_LOGE("Failed to send WMI_BPF_SET_VDEV_ACTIVE_MODE_CMDID:%d",
+			 status);
+		wmi_buf_free(buf);
+		return status;
+	}
+
+	WMI_LOGI("Sent WMI_BPF_SET_VDEV_ACTIVE_MODE_CMDID successfully");
+
+	return QDF_STATUS_SUCCESS;
+}
+
 /**
  * send_power_dbg_cmd_tlv() - send power debug commands
  * @wmi_handle: wmi handle
@@ -15770,6 +15827,7 @@ struct wmi_ops tlv_ops =  {
 		 send_roam_scan_offload_rssi_change_cmd_tlv,
 	.send_get_buf_extscan_hotlist_cmd =
 		 send_get_buf_extscan_hotlist_cmd_tlv,
+	.send_set_active_bpf_mode_cmd = send_set_active_bpf_mode_cmd_tlv,
 	.send_adapt_dwelltime_params_cmd =
 		send_adapt_dwelltime_params_cmd_tlv,
 	.init_cmd_send = init_cmd_send_tlv,