qcacmn: Add set mlo link validation callback

Add "validate_set_mlo_link_cb" callback to mlo link set serialization
request context. Mlo mgr component client can register such callback to
be invoked before set mlo link command to target.

Change-Id: I0e860186dd33fc45b3f662d6af91329f10e4c638
CRs-Fixed: 3324888

umac/mlo_mgr/inc/wlan_mlo_mgr_public_structs.h

@@ -862,13 +862,17 @@ struct mlo_link_set_active_param {
 /*
  * struct mlo_link_set_active_ctx - Context for MLO link set active request
  * @vdev: pointer to vdev on which the request issued
- * @cb: callback function for MLO link set active request
+ * @set_mlo_link_cb: callback function for MLO link set active request
+ * @validate_set_mlo_link_cb: callback to validate set link request
  * @cb_arg: callback context
  */
 struct mlo_link_set_active_ctx {
 	struct wlan_objmgr_vdev *vdev;
 	void (*set_mlo_link_cb)(struct wlan_objmgr_vdev *vdev, void *arg,
 				struct mlo_link_set_active_resp *evt);
+	QDF_STATUS (*validate_set_mlo_link_cb)(
+			struct wlan_objmgr_psoc *psoc,
+			struct mlo_link_set_active_param *param);
 	void *cb_arg;
 };
 

umac/mlo_mgr/src/wlan_mlo_mgr_cmn.c

@@ -438,15 +438,18 @@ void mlo_get_ml_vdev_list(struct wlan_objmgr_vdev *vdev,
 /**
  * mlo_link_set_active() - send MLO link set active command
  * @psoc: PSOC object
- * @param: MLO link set active params
+ * @req: MLO link set active request
  *
  * Return: QDF_STATUS
  */
 static QDF_STATUS
 mlo_link_set_active(struct wlan_objmgr_psoc *psoc,
-		    struct mlo_link_set_active_param *param)
+		    struct mlo_link_set_active_req *req)
 {
 	struct wlan_lmac_if_mlo_tx_ops *mlo_tx_ops;
+	struct mlo_link_set_active_param *param = &req->param;
+	QDF_STATUS status;
+	struct mlo_link_set_active_resp rsp_evt;
 
 	if (!psoc) {
 		mlo_err("psoc is null");
@@ -464,6 +467,19 @@ mlo_link_set_active(struct wlan_objmgr_psoc *psoc,
 		return QDF_STATUS_E_NULL_VALUE;
 	}
 
+	if (req->ctx.validate_set_mlo_link_cb) {
+		status = req->ctx.validate_set_mlo_link_cb(psoc, param);
+		if (QDF_IS_STATUS_ERROR(status)) {
+			qdf_mem_zero(&rsp_evt, sizeof(rsp_evt));
+			rsp_evt.status = status;
+			if (req->ctx.set_mlo_link_cb)
+				req->ctx.set_mlo_link_cb(req->ctx.vdev,
+							 req->ctx.cb_arg,
+							 &rsp_evt);
+			return status;
+		}
+	}
+
 	return mlo_tx_ops->link_set_active(psoc, param);
 }
 
@@ -564,7 +580,7 @@ mlo_ser_set_link_cb(struct wlan_serialization_command *cmd,
 	vdev = cmd->vdev;
 	switch (reason) {
 	case WLAN_SER_CB_ACTIVATE_CMD:
-		status = mlo_link_set_active(psoc, &req->param);
+		status = mlo_link_set_active(psoc, req);
 		break;
 	case WLAN_SER_CB_CANCEL_CMD:
 	case WLAN_SER_CB_ACTIVE_CMD_TIMEOUT: