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unslop, improve the tio interface

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This commit is contained in:
JackDoan
2026-07-28 16:20:14 -05:00
parent df8955177e
commit 5c0f6e2b5f
13 changed files with 255 additions and 240 deletions
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overlay/tio/tio.go
+3 -10
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@@ -93,14 +93,6 @@ type CapsProvider interface {
Capabilities() Capabilities
}
// QueueCapabilities returns q's negotiated offload capabilities, or the zero value when q does not advertise any.
func QueueCapabilities(q io.Writer) Capabilities {
if cp, ok := q.(CapsProvider); ok {
return cp.Capabilities()
}
return Capabilities{}
}
// GSOProto selects the L4 protocol for a GSO superpacket.
// Determines which VIRTIO_NET_HDR_GSO_* type the writer stamps and which checksum offset
// inside the transport header virtio NEEDS_CSUM expects.
@@ -126,9 +118,10 @@ const (
// Every segment in pays except possibly the last is exactly the same size.
// proto picks the L4 protocol so the writer knows which gsoType / CsumOffset to set.
//
// Callers should also consult CapsProvider (via SupportsGSO or QueueCapabilities)
// for the per-protocol negotiated capability: USO may not have been negotiated even when TSO was.
// Callers should also consult CapsProvider (via SupportsGSO) for the per-protocol negotiated capability:
// USO may not have been negotiated even when TSO was.
type GSOWriter interface {
io.Writer
CapsProvider
WriteGSO(hdr []byte, transportHdr []byte, pays [][]byte, proto GSOProto) error
}