On Thu, 14 Mar 2019 22:35:36 +0000, Parav Pandit wrote: > > > Then instances of flavour pci_vf are going to appear in the same > > > devlink instance. Those are the switch ports: > > > pci/0000:05:00.0/10002: type eth netdev enp5s0npf0pf0s0 > > > flavour pci_vf pf 0 vf 0 > > > switch_id 00154d130d2f peer pci/0000:05:10.1/0 > > > pci/0000:05:00.0/10003: type eth netdev enp5s0npf0pf0s0 > > > flavour pci_vf pf 0 vf 0 subport 1 > > > switch_id 00154d130d2f peer pci/0000:05:10.1/1 > > > > > > With that, peers are going to appear too, and those are the actual > > > VF/VF > > > subport: > > > pci/0000:05:10.1/0: type eth netdev ??? flavour pci_vf_host > > > peer pci/0000:05:00.0/10002 > > > pci/0000:05:10.1/1: type eth netdev ??? flavour pci_vf_host > > > peer pci/0000:05:00.0/10003 > > > > > > Later you can push this VF along with all subports to VM. So in VM, > > > you are going to see the VF like this: > > > $ devlink dev > > > pci/0000:00:08.0 > > > $ devlink port > > > pci/0000:00:08.0/0: type eth netdev ??? flavour pci_vf_host > > > pci/0000:00:08.0/1: type eth netdev ??? flavour pci_vf_host > > > > > > And back to your question of how are they connected in eswitch. > > > That is totally up to the original user John who did the creation. > > > He is in charge of the eswitch on baremetal, he would configure the > > > forwarding however he likes. > > > > Ack, so I think you're saying VM has to communicate to the cloud > > environment to have this provisioned using some service API, not a kernel > > API. That's what I wanted to confirm. > > > > I don't see any benefit to having the "host ports" under devlink, as such I > > think it's a matter of preference. > > We need 'host ports' to configure parameters of this > host port which is not exposed by the rep-netdev. > Such as mac address.
Please look at the quote of what Jiri wrote above - the host port gets passed to the VM, you can't use it as a handle to set the MAC. The way to set the MAC remains: # devlink port set pci/0000:05:00.0/10002 peer mac_addr 00:11:22:33:44:55 (using the port ids from above)
