qcacmn: Add changes to notify userspace whenever T2LM updates

From the driver, call wlan_mlo_dev_t2lm_notify_link_update()
API whenever there is a link update happens using T2LM.

Change-Id: I51be6eafcb558bcf54919bead8c93227c33be194
CRs-Fixed: 3431540

umac/mlo_mgr/inc/wlan_mlo_t2lm.h

@@ -364,13 +364,14 @@ struct wlan_mlo_dev_context;
 /**
  * typedef wlan_mlo_t2lm_link_update_handler - T2LM handler API to notify the
  * link update.
- * @mldev: Pointer to mlo_dev_context
- * @arg: ieee_link_map
+ * @vdev: Pointer to vdev context
+ * @t2lm: Pointer to wlan_t2lm_info
  *
  * Return: QDF_STATUS
  */
 typedef QDF_STATUS (*wlan_mlo_t2lm_link_update_handler)(
-		struct wlan_mlo_dev_context *mldev, void *arg);
+					struct wlan_objmgr_vdev *vdev,
+					struct wlan_t2lm_info *t2lm);
 
 /**
  * struct wlan_t2lm_context - T2LM IE information
@@ -532,12 +533,14 @@ void wlan_unregister_t2lm_link_update_notify_handler(
 /**
  * wlan_mlo_dev_t2lm_notify_link_update() - API to call the registered handlers
  * when there is a link update happens using T2LM
- * @mldev: Pointer to mlo context
+ * @vdev: Pointer to vdev
+ * @t2lm: Pointer to T2LM info
  *
  * Return: QDF_STATUS
  */
 QDF_STATUS wlan_mlo_dev_t2lm_notify_link_update(
-		struct wlan_mlo_dev_context *mldev);
+		struct wlan_objmgr_vdev *vdev,
+		struct wlan_t2lm_info *t2lm);
 
 /**
  * wlan_mlo_parse_t2lm_ie() - API to parse the T2LM IE
@@ -845,7 +848,8 @@ void wlan_unregister_t2lm_link_update_notify_handler(
 }
 
 static inline QDF_STATUS wlan_mlo_dev_t2lm_notify_link_update(
-		struct wlan_mlo_dev_context *mldev)
+		struct wlan_objmgr_vdev *vdev,
+		struct wlan_t2lm_info *t2lm)
 {
 	return QDF_STATUS_SUCCESS;
 }

umac/mlo_mgr/src/wlan_mlo_t2lm.c

@@ -637,9 +637,6 @@ static void wlan_mlo_t2lm_handle_mapping_switch_time_expiry(
 
 	qdf_mem_zero(&t2lm_ctx->upcoming_t2lm, sizeof(struct wlan_mlo_t2lm_ie));
 	t2lm_ctx->upcoming_t2lm.t2lm.direction = WLAN_T2LM_INVALID_DIRECTION;
-
-	/* Notify the registered caller about the link update*/
-	wlan_mlo_dev_t2lm_notify_link_update(vdev->mlo_dev_ctx);
 }
 
 /**
@@ -679,9 +676,6 @@ static void wlan_mlo_t2lm_handle_expected_duration_expiry(
 	t2lm_ctx->established_t2lm.disabled_link_bitmap = 0;
 	t2lm_ctx->established_t2lm.t2lm.link_mapping_size = 0;
 	t2lm_debug("Set established mapping to default mapping");
-
-	/* Notify the registered caller about the link update*/
-	wlan_mlo_dev_t2lm_notify_link_update(vdev->mlo_dev_ctx);
 }
 
 QDF_STATUS wlan_mlo_vdev_tid_to_link_map_event(
@@ -734,9 +728,17 @@ QDF_STATUS wlan_mlo_vdev_tid_to_link_map_event(
 	case WLAN_MAP_SWITCH_TIMER_EXPIRED:
 		vdev_mlme->proto.ap.mapping_switch_time = 0;
 		wlan_mlo_t2lm_handle_mapping_switch_time_expiry(t2lm_ctx, vdev);
+
+		/* Notify the registered caller about the link update*/
+		wlan_mlo_dev_t2lm_notify_link_update(vdev,
+					&t2lm_ctx->established_t2lm.t2lm);
 		break;
 	case WLAN_EXPECTED_DUR_EXPIRED:
 		wlan_mlo_t2lm_handle_expected_duration_expiry(t2lm_ctx, vdev);
+
+		/* Notify the registered caller about the link update*/
+		wlan_mlo_dev_t2lm_notify_link_update(vdev,
+					&t2lm_ctx->established_t2lm.t2lm);
 		break;
 	default:
 		t2lm_err("Invalid status");
@@ -953,6 +955,9 @@ wlan_send_peer_level_tid_to_link_mapping(struct wlan_objmgr_vdev *vdev,
 		if (t2lm_info && t2lm_info->direction !=
 		    WLAN_T2LM_INVALID_DIRECTION) {
 			t2lm_debug("send peer-level mapping to FW for dir: %d", dir);
+
+			/* Notify the registered caller about the link update*/
+			wlan_mlo_dev_t2lm_notify_link_update(vdev, t2lm_info);
 			status = wlan_send_tid_to_link_mapping(vdev, t2lm_info);
 			idx++;
 		}
@@ -985,15 +990,22 @@ void wlan_mlo_t2lm_timer_expiry_handler(void *vdev)
 	 */
 	if (t2lm_ctx->established_t2lm.t2lm.expected_duration_present) {
 		wlan_mlo_t2lm_handle_expected_duration_expiry(t2lm_ctx, vdev);
+
+		/* Notify the registered caller about the link update*/
+		wlan_mlo_dev_t2lm_notify_link_update(vdev_ctx,
+					&t2lm_ctx->established_t2lm.t2lm);
 		wlan_send_tid_to_link_mapping(
 				vdev, &t2lm_ctx->established_t2lm.t2lm);
 
 		wlan_handle_t2lm_timer(vdev_ctx);
 	} else if (t2lm_ctx->upcoming_t2lm.t2lm.mapping_switch_time_present) {
 		wlan_mlo_t2lm_handle_mapping_switch_time_expiry(t2lm_ctx, vdev);
+
+		/* Notify the registered caller about the link update*/
+		wlan_mlo_dev_t2lm_notify_link_update(vdev_ctx,
+					&t2lm_ctx->established_t2lm.t2lm);
 		wlan_send_tid_to_link_mapping(
 				vdev, &t2lm_ctx->established_t2lm.t2lm);
-
 		wlan_handle_t2lm_timer(vdev_ctx);
 	}
 
@@ -1186,6 +1198,10 @@ static QDF_STATUS wlan_update_mapping_switch_time_expected_dur(
 		qdf_mem_copy(&t2lm_ctx->established_t2lm.t2lm,
 			     &rx_t2lm->established_t2lm.t2lm,
 			     sizeof(struct wlan_t2lm_info));
+
+		/* Notify the registered caller about the link update*/
+		wlan_mlo_dev_t2lm_notify_link_update(vdev,
+					&t2lm_ctx->established_t2lm.t2lm);
 		wlan_send_tid_to_link_mapping(
 				vdev, &t2lm_ctx->established_t2lm.t2lm);
 	}
@@ -1291,12 +1307,27 @@ void wlan_unregister_t2lm_link_update_notify_handler(
 }
 
 QDF_STATUS wlan_mlo_dev_t2lm_notify_link_update(
-		struct wlan_mlo_dev_context *mldev)
+		struct wlan_objmgr_vdev *vdev,
+		struct wlan_t2lm_info *t2lm)
 {
-	struct wlan_t2lm_context *t2lm_ctx = &mldev->t2lm_ctx;
+	struct wlan_t2lm_context *t2lm_ctx;
 	wlan_mlo_t2lm_link_update_handler handler;
 	int i;
 
+	if (!vdev || !vdev->mlo_dev_ctx)
+		return QDF_STATUS_E_FAILURE;
+
+	if (!wlan_cm_is_vdev_connected(vdev)) {
+		t2lm_err("Not associated!");
+		return QDF_STATUS_E_AGAIN;
+	}
+
+	if (!wlan_vdev_mlme_is_mlo_vdev(vdev)) {
+		t2lm_err("failed due to non-ML connection");
+		return QDF_STATUS_E_INVAL;
+	}
+
+	t2lm_ctx = &vdev->mlo_dev_ctx->t2lm_ctx;
 	for (i = 0; i < MAX_T2LM_HANDLERS; i++) {
 		if (!t2lm_ctx->is_valid_handler[i])
 			continue;
@@ -1305,8 +1336,7 @@ QDF_STATUS wlan_mlo_dev_t2lm_notify_link_update(
 		if (!handler)
 			continue;
 
-		handler(mldev,
-			&t2lm_ctx->established_t2lm.t2lm.ieee_link_map_tid[0]);
+		handler(vdev, t2lm);
 	}
 	return QDF_STATUS_SUCCESS;
 }