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Enable set_field with Metadata register #16

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Enable set_field with Metadata register #16

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Commits on Apr 24, 2022

  1. Enable set_field with Metadata register 

    WriteMetadata is write-action instruction which will be applied later
than apply-action. In some case, we need use resubmit to do pipeline in
the same table and set Metadata before resubmit at the same time.
WriteMetadata cannot do the job. We need enable set_field for Metadata
register.

Actually, WriteMetadata do the same thing with set_field Metadata
register in the OvS. From OpenFlow 1.5, Metadata register also can be
used with set_field to set, not stricted only using WriteMetadata instruction.

After this patch, ofnet can support WriteMetadata and set_field for
Metadata meanwhile. Caller can use SetMetadata() or WriteMetadata() API
to implement WriteMetadata action, and use SetMetadataAction() and
ApplyAction() to implement set_field for Metadata.

Signed-off-by: Jinjun Gao <[email protected]>
    @commandgjj
    commandgjj committed Apr 24, 2022
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