Re: mlx5en issue with SR-IOV when using in the bridge
Date: Mon, 12 Feb 2024 08:30:37 UTC
Hi Konstantin, indeed the port is plugged to a switch. The port is enabled. So yes that probably is. Is this a firmware issue or can it be solved in the driver? BenoƮt On Sunday, February 11th, 2024 at 04:50, Konstantin Belousov <kostikbel@gmail.com> wrote: > On Sat, Feb 10, 2024 at 09:23:36AM +0000, Benoit Chesneau wrote: > > > I have tested the following scenario: > > > > Setup the mellanox driver with SRIOV: > > > > ``` > > $ sudo more /etc/iov/mce0.conf > > PF { > > device: "mlx5_core0"; > > num_vfs: 8; > > } > > > > DEFAULT { > > passthrough: true; > > } > > > > VF-0 { > > mac-addr: "02:01:02:02:01:00"; > > } > > > > VF-1 { > > mac-addr: "02:01:02:02:01:01"; > > } > > > > VF-2 { > > passthrough: false;} > > > > ``` > > > > With one VF in the vm answering to a specific vlan, and one jail on the host using vnet with the PF in a bridge and a epair interface added to this bridge. > > > > When I am pinging from the jail to the VF in the vm , the vm receive the ping or arp requests. But the jail doesn't receive the response. In a same manner , when I ping from the VM to the jail, the host is not found. bridge arp doesn't return the vm mac address. > > > > All the hosts has the PF interface set in promiscuous mode but this doesn't seem to be enough to allows the bridge to learn other mac ids. When I directly add the IP to PF, Ping works from the vm to the PF, the reverse is also true. > > > > Do I miss a setting? Is this expected with mellanox cards? What shoudl I look for? > > > Do you have the port plugged into a switch and the port enabled? > I suspect VFs do not have enough hairpin code to do proper loopback > communications, and I certain that multicast loopback does not work.