Ingress nginx forwarding grafan svc unsuccessful

I deploy grafana with helm, I enable ingress forwarding, the generated resources are as below, but when I visit https://control.xx/grafana it returns 404.
I don’t know how to solve this problem

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  annotations:
    meta.helm.sh/release-name: grafana
    meta.helm.sh/release-namespace: monitoring
    nginx.ingress.kubernetes.io/backend-protocol: HTTP
    nginx.ingress.kubernetes.io/force-ssl-redirect: "true"
    nginx.ingress.kubernetes.io/rewrite-target: /
  name: grafana
  namespace: monitoring
spec:
  ingressClassName: monitoring-nginx
  rules:
  - host: control.xx
    http:
      paths:
      - backend:
          service:
            name: grafana
            port:
              number: 80
        path: /grafana
        pathType: Prefix
  tls:
  - hosts:
    - control.xx
    secretName: monitoring-ingress-secret

The values file is as follows

persistence:
  type: pvc
  enabled: true
  storageClassName: cbs-yield
  accessModes:
    - ReadWriteOnce
  size: 20Gi
  existingClaim: grafana   #tke事先创建好的pvc
ingress:
  enabled: true
  ingressClassName: monitoring-nginx
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
    nginx.ingress.kubernetes.io/force-ssl-redirect: "true"
    nginx.ingress.kubernetes.io/backend-protocol: "HTTP"
  path: /grafana
  pathType: Prefix
  hosts:
    - control.xx
  tls:
  - secretName: monitoring-ingress-secret
    hosts:
      - control.xx
resources:
  limits:
    cpu: 300m
    memory: 500Mi
  requests:
    cpu: 100m
    memory: 128Mi