SF support for rte_flow offloading

[byteocean]

Hi community and authors,

As in the official document [1] states, SFs support E-Switch representation offload like existing PF and VF representors. However, a simple rte_flow rule cannot be installed in a working SF setup (with Mellanox ConnectX-6 Dx). The installed the flow rule is simple:

flow create 1 ingress transfer pattern eth / end actions port_id id 0 / end

In this flow rule, port 1 is the representor of a PF and port 0 is the representor of a created SF. The following error was returned back:

port_flow_complain(): Caught PMD error type 15 (action configuration): cause: 0x7ffc5abd74a8, failed to obtain E-Switch port id for port: Invalid argument

testpmd app is started with the EAL parameters -a 0000:3b:00.0 -a auxiliary:mlx5_core.sf.21.

So, it would be appreciated if someone could give a hint on the following questions

1. to which extend, offloading is supported with SF?
2. if offloading is well supported as for VF, what could be the reason such error is returned.

Thanks in advance.

[1] https://docs.nvidia.com/doca/archive/doca-v1.1/pdf/scalable-functions.pdf