MPLS Push action

[Kishore Padmanabha]

Hi Thomas,

Any update on this.

Thanks,
Kishore


On Tue, Mar 4, 2025 at 12:48 PM Kishore Padmanabha <
kishore.padmanabha at broadcom.com> wrote:

> Hi Thomas,
>
> On Mon, Mar 3, 2025 at 2:25 PM Thomas Monjalon <thomas at monjalon.net>
> wrote:
>
>> Hi,
>>
>> This is the related code:
>>
>> /**
>>  * RTE_FLOW_ACTION_TYPE_OF_PUSH_MPLS
>>  *
>>  * Implements OFPAT_PUSH_MPLS ("push a new MPLS tag") as defined by the
>>  * OpenFlow Switch Specification.
>>  */
>> struct rte_flow_action_of_push_mpls {
>>     rte_be16_t ethertype; /**< EtherType. */
>> };
>>
>
>  That is correct, it is related to the MPLS push action.
>
>>
>>
>
>> > On Mon, Mar 3, 2025 at 8:02 AM Kishore Padmanabha
>> > <kishore.padmanabha at broadcom.com> wrote:
>> > >
>> > > Hi,
>> > >
>> > > Anyone has any inputs on this. Or should I add new CLI commands in
>> testpmd to support action for push MPLS tag.
>>
>> This action was designed as an OpenFlow implementation.
>> Is what you require an OpenFlow spec?
>> If yes, we may consider an update,
>> if no, we should create a new action.
>>
>>  The openflow spec
> https://opennetworking.org/wp-content/uploads/2014/10/openflow-switch-v1.5.1.pdf
> has mention of the MPLS push action but it does not mention how to specify
> how to configure the mpls label, TC and BOS.
>
>> > >
>> > > Thanks,
>> > >
>> > > Kishore
>> > >
>> > > From: Kishore Padmanabha <kishore.padmanabha at broadcom.com>
>> > > Sent: Thursday, February 27, 2025 6:35 PM
>> > > To: 'dev at dpdk.org' <dev at dpdk.org>
>> > > Subject: MPLS Push action
>> > >
>> > > Hi,
>> > >
>> > > When MPLS push action is used, using testpmd action  of_push_mpls, it
>> accepts the ethertype only. How do I specify the MPLS label and other
>> fields for the MPLS header to be added ? In the doc, in section 7.2.3.7
>> there is mention of OFXPMT_OFB_MPLS_LABEL and other MPLS fields, but I
>> could not find that in dpdk implementation.
>>
>> What is this documentation?
>> Please provide a link.
>>
>> The above label is only mentioned for match and it is documented in
> https://opennetworking.org/wp-content/uploads/2014/10/openflow-switch-v1.5.1.pdf
> section 7.2.3.7
>
>

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