Fix last round of PR comments

Signed-off-by: Nick Young <ynick@vmware.com>

apis/v1alpha2/httproute_types.go

@@ -723,10 +723,11 @@ type HTTPRequestRedirect struct {
 type HTTPRequestMirrorFilter struct {
 	// BackendRef references a resource where mirrored requests are sent.
 	//
-	// If the referent cannot be found, the rule is not included in the route.
-	// The controller should raise the "ResolvedRefs" condition on the Gateway
-	// with the "DegradedRoutes" reason. The gateway status for this route should
-	// be updated with a condition that describes the error more specifically.
+	// If the referent cannot be found, this HTTPBackendRef is invalid
+	// and must be dropped from the Gateway. The controller must ensure the
+	// "ResolvedRefs" condition on the Gateway is set to `status: true`
+	// with the "DegradedRoutes" reason, and not configure this backend in the
+	// underlying implemenation.
 	//
 	// If there is a cross-namespace reference to an *existing* object
 	// that is not covered by a ReferencePolicy, the controller must ensure the

apis/v1alpha2/referencepolicy_types.go

@@ -34,6 +34,9 @@ import metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 //
 // All cross-namespace references in Gateway API (with the exception of cross-namespace
 // Gateway-route attachment) require a ReferencePolicy.
+//
+// Support: Core
+//
 type ReferencePolicy struct {
 	metav1.TypeMeta   `json:",inline"`
 	metav1.ObjectMeta `json:"metadata,omitempty"`
@@ -87,7 +90,6 @@ type ReferencePolicyFrom struct {
 	//
 	// Support: Core
 	//
-	// +kubebuilder:validation:MinLength=1
 	// +kubebuilder:validation:MaxLength=253
 	Group string `json:"group"`
 
@@ -121,7 +123,6 @@ type ReferencePolicyTo struct {
 	//
 	// Support: Core
 	//
-	// +kubebuilder:validation:MinLength=1
 	// +kubebuilder:validation:MaxLength=253
 	Group string `json:"group"`
 
@@ -130,10 +131,6 @@ type ReferencePolicyTo struct {
 	// support level for this field:
 	//
 	// * Service
-	// * HTTPRoute
-	// * TCPRoute
-	// * TLSRoute
-	// * UDPRoute
 	//
 	// +kubebuilder:validation:MinLength=1
 	// +kubebuilder:validation:MaxLength=253

site-src/v1alpha2/references/cross-namespace-references.md

@@ -112,7 +112,7 @@ effective safeguards are in place.
 ### Conformance Level
 
 ReferencePolicy support is a "CORE" conformance level requirement for
-cross-namespace references inside the following objects:
+cross-namespace references that originate from the following objects:
 - HTTPRoute
 - TLSRoute
 - TCPRoute