Re: [dpdk-dev] Promiscuous Mode Feature

On Wed, Jun 24, 2020 at 1:03 PM Thomas Monjalon [off-list ref] wrote:

Hi,

A bit of context: David is going to implement a test in DTS
for promiscuous mode:
http://doc.dpdk.org/guides/nics/features.html#promiscuous-mode

24/06/2020 18:18, David Liu:

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Hi all,

From my understanding, the promiscuous mode feature will verify the
functionality of promiscuous mode when it is on or off.

You need to check in which condition the promiscuous mode can be enabled.
Some contexts may forbid this mode. untrusted VF? flow isolation mode?

But there is no way other than some logs to indicate these.
Maybe we should add some state in port info to indicate this?

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The plan for testing this feature is as follows:

Sending over a packet to verify the ports are working properly before any
testing. First to verify the promiscuous mode is enabled. With the
promiscuous being enabled, send over a packet and check if the packet

will

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be received when sending it to a different destination mac address than

the

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host/card. Then disable the promiscuous mode. The packet will only be
received if the mac address is the destination mac address. Otherwise,

the

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test case will be considered a failure.

I assume you will test positive and negative in both on/off cases.

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Please let me know if there is anything I need to add on or if there are
certain cases I need to be aware of.

Anyone else has ideas about what to test and corner cases?

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Thanks,
David Liu
UNH Interoperability Lab