On 5/3/17, 12:52 PM, "Ben Pfaff" <[email protected]> wrote:
On Wed, May 03, 2017 at 04:56:43AM +0000, Patil, Harish wrote:
> >
> >
> >
> >
> >On 4/26/17, 11:45 AM, "[email protected] on behalf of
> >Patil, Harish" <[email protected] on behalf of
> >[email protected]> wrote:
> >
> >
> >
> > >Hello,
> >
> > >
> >
> > >We are planning to utilize the rte_flow (generic flow interface)
> >
> > >introduced in DPDK 16.11. It provides, among other things, a flow
> >action
> >
> > >type called RTE_FLOW_ACTION_TYPE_MARK that attaches an arbitrary
> >32-bit
> >
> > >integer value for packets matching the flow director rules and sets
> >
> > >PKT_RX_FDIR_ID flag (flow director ID reported if FDIR match). Would
> >like
> >
> > >to understand the following:
> >
> > >1) Are the OVS changes in place to be able to make use of this
driver
> >
> > >returned ³hint² (or flow-id) in the data path for lookups?
> >
> >No
> >
> > If so, can you
> >
> > >please provide code pointer?
> >
> > >2) Is that 32-bit tag/flow_id meant to be used for megaflow cache
> >only?
> >
> >TBD, if future support were to exist.
> >
> >In
> > > the existing implementation, it seems NIC computed RSS hash is used
> >for
> >
> > >EMC only.
> >
> >right
> >
> > >
> >
> > >
> >
> > >Thanks,
> >
> > >Harish
> >
> > >
> >
> > >_______________________________________________
> >
> > >discuss mailing list
> >
> > >[email protected]
> >
> >
>
>>https://urldefense.proofpoint.com/v2/url?u=https-3A__mail.openvswitch.org
>
>>_mailman_listinfo_ovs-2Ddiscuss&d=DwIGaQ&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA
>
>>09CGX7JQ5Ih-uZnsw&m=NovoJUYtW_IELGmBQfcq_LmZIGaZjtiobvV3LQZNsTM&s=0JxsIyI
> >>P8DxTHzgbXFk5ziJmbIfB3j1xcUl-4ri8KV8&e=
> >
> > >
> >
> >
> >
> > Reposting this question, haven’t received any response.
> >
> > First of all, is this the right forum for this question?
> >
> > Could someone at least suggest who would the right folks to answer
> >this?
> >
> >
> >
> > Thanks.
> >
> >
> >
> > _______________________________________________
> > discuss mailing list
> > [email protected]
> >
>
>https://urldefense.proofpoint.com/v2/url?u=https-3A__mail.openvswitch.org_
>
>mailman_listinfo_ovs-2Ddiscuss&d=DwIGaQ&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09
>
>CGX7JQ5Ih-uZnsw&m=NovoJUYtW_IELGmBQfcq_LmZIGaZjtiobvV3LQZNsTM&s=0JxsIyIP8D
> >xTHzgbXFk5ziJmbIfB3j1xcUl-4ri8KV8&e=
> >
> >
> >
>
> I missed this email due to my filter settings.
> Thanks Darrell for your response.
> Do you know when OVS changes might be available to take advantage of HW
> provided flow_id info for the matching flows?
Has anyone proposed such changes?
This fits into the HWOL category of Partial Offload of Classification.
There are “related proposals”; I am not sure what level of exploratory
work, if any, is being done here. I am not aware of any “concrete efforts”
at this moment.
I am not aware of it. I'd suggest
that, if it's something that is likely to help with your project, then
you should consider implementing these changes yourself.
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