qcacmn: Add supoprt to process WMI_MLO_LINK_REMOVAL_EVENTID

WMI_MLO_LINK_REMOVAL_EVENTID will be sent by FW to update the Host on the
progress of the link removal operation. Add support to process this event.

Change-Id: I0c4d5b047cf062b421380f85717fac5a9bdea9c2
CRs-Fixed: 3334950

target_if/mlo_mgr/src/target_if_mlo_mgr.c

@@ -79,6 +79,69 @@ target_if_mlo_link_set_active_resp_handler(ol_scn_t scn, uint8_t *data,
 	return qdf_status_to_os_return(status);
 }
 
+/**
+ * target_if_mlo_link_removal_event_handler() - Handler for MLO link removal
+ * event sent by the FW
+ * @scn: scn handle
+ * @data: data buffer for event
+ * @datalen: data length
+ *
+ * Return: 0 on success, else error on failure
+ */
+static int
+target_if_mlo_link_removal_event_handler(ol_scn_t scn, uint8_t *data,
+					 uint32_t datalen)
+{
+	struct wlan_objmgr_psoc *psoc;
+	struct wmi_unified *wmi_handle;
+	struct wlan_lmac_if_mlo_rx_ops *mlo_rx_ops;
+	QDF_STATUS status;
+	struct mlo_link_removal_evt_params evt_params;
+
+	if (!scn || !data) {
+		target_if_err("scn: 0x%pK, data: 0x%pK", scn, data);
+		return -EINVAL;
+	}
+
+	psoc = target_if_get_psoc_from_scn_hdl(scn);
+	if (!psoc) {
+		target_if_err("null psoc");
+		return -EINVAL;
+	}
+
+	mlo_rx_ops = target_if_mlo_get_rx_ops(psoc);
+	if (!mlo_rx_ops || !mlo_rx_ops->mlo_link_removal_handler) {
+		target_if_err("callback not registered");
+		return -EINVAL;
+	}
+
+	wmi_handle = get_wmi_unified_hdl_from_psoc(psoc);
+	if (!wmi_handle) {
+		target_if_err("wmi_handle is null");
+		return -EINVAL;
+	}
+
+	status = wmi_extract_mlo_link_removal_evt_fixed_param(wmi_handle, data,
+							      &evt_params);
+	if (QDF_IS_STATUS_ERROR(status)) {
+		target_if_err("Unable to extract fixed param, ret = %d",
+			      status);
+		goto exit;
+	}
+
+	status = wmi_extract_mlo_link_removal_tbtt_update(
+			wmi_handle, data, &evt_params.tbtt_info);
+	if (QDF_IS_STATUS_ERROR(status)) {
+		target_if_err("Unable to extract TBTT update TLV, ret = %d",
+			      status);
+		goto exit;
+	}
+
+	status = mlo_rx_ops->mlo_link_removal_handler(psoc, &evt_params);
+exit:
+	return qdf_status_to_os_return(status);
+}
+
 /**
  * target_if_mlo_register_event_handler() - function to register handler for
  *  mlo related wmi event from firmware.
@@ -103,6 +166,14 @@ target_if_mlo_register_event_handler(struct wlan_objmgr_psoc *psoc)
 		return QDF_STATUS_E_INVAL;
 	}
 
+	status = wmi_unified_register_event(
+			wmi_handle,
+			wmi_mlo_link_removal_eventid,
+			target_if_mlo_link_removal_event_handler);
+	if (QDF_IS_STATUS_ERROR(status))
+		target_if_err("Couldn't register handler for Link removal WMI event %d",
+			      status);
+
 	status = wmi_unified_register_event_handler(
 			wmi_handle,
 			wmi_mlo_link_set_active_resp_eventid,
@@ -144,6 +215,9 @@ target_if_mlo_unregister_event_handler(struct wlan_objmgr_psoc *psoc)
 	wmi_unified_unregister_event_handler(wmi_handle,
 		wmi_mlo_link_set_active_resp_eventid);
 
+	wmi_unified_unregister_event(wmi_handle,
+				     wmi_mlo_link_removal_eventid);
+
 	return QDF_STATUS_SUCCESS;
 }
 

umac/global_umac_dispatcher/lmac_if/inc/wlan_lmac_if_def.h

@@ -1409,6 +1409,7 @@ struct wlan_lmac_if_mlo_tx_ops {
  * struct wlan_lmac_if_mlo_rx_ops - defines southbound rx callbacks for mlo
  * @process_link_set_active_resp: function pointer to rx FW events
  * @process_mlo_vdev_tid_to_link_map_event:  function pointer to rx T2LM event
+ * @mlo_link_removal_handler: function pointer for MLO link removal handler
  */
 struct wlan_lmac_if_mlo_rx_ops {
 	QDF_STATUS
@@ -1417,6 +1418,9 @@ struct wlan_lmac_if_mlo_rx_ops {
 	QDF_STATUS (*process_mlo_vdev_tid_to_link_map_event)(
 			struct wlan_objmgr_psoc *psoc,
 			struct mlo_vdev_host_tid_to_link_map_resp *event);
+	QDF_STATUS (*mlo_link_removal_handler)(
+			struct wlan_objmgr_psoc *psoc,
+			struct mlo_link_removal_evt_params *evt_params);
 };
 #endif
 

wmi/inc/wmi_unified_param.h

@@ -5137,6 +5137,7 @@ typedef enum {
 	wmi_mlo_setup_complete_event_id,
 	wmi_mlo_teardown_complete_event_id,
 	wmi_mlo_link_set_active_resp_eventid,
+	wmi_mlo_link_removal_eventid,
 #endif
 	wmi_pdev_fips_extend_event_id,
 	wmi_roam_frame_event_id,

wmi/src/wmi_unified_tlv.c

@@ -20144,6 +20144,8 @@ static void populate_tlv_events_id_mlo(uint32_t *event_ids)
 			WMI_QUIET_HANDLING_EVENTID;
 	event_ids[wmi_mlo_ap_vdev_tid_to_link_map_eventid] =
 			WMI_MLO_AP_VDEV_TID_TO_LINK_MAP_EVENTID;
+	event_ids[wmi_mlo_link_removal_eventid] =
+			WMI_MLO_LINK_REMOVAL_EVENTID;
 }
 #else /* WLAN_FEATURE_11BE_MLO */
 static inline void populate_tlv_events_id_mlo(uint32_t *event_ids)